2. Westside InterceptorPUBLIC W,
201 F' Avenue East
PO Box 1997
Kalispell, MT 59903
Phone: 406-758-7720
Fax: 406-758-7831
www.kalispell.com /public —works
MEMORANDUM
To: Doug Russell, City Manager iok
From: Susie Turner, P.E. Public Works Director/City Engineer
Date: 12/3/2014
Re: Westside Interceptor (WSI) Work Session Presentation
The workshop presentation is a summarization of Preferred Route Assessment and Addendum #1
Report. The report includes the evaluation and recommendation of the preferred route, service
area and population growth delineations, preliminary engineering, land acquisitions, funding
source assessment, cost estimates, and scheduling for future construction.
Enclosed handouts to Council include:
• Power point presentation with discussion summary points — Outlining discussion topics
to be detailed further at the Work Session
• Preferred Route Assessment and Addendum #1 Report
ry
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PREFERRED ROUTE ASSESSMENT
Kalispell,
Prepared for
Robert Peccia & Associates
Kalispell, Montana
ROBERT PECCIA & ASSOCIATES
RPA Technical Memorandum
TO: Keith Haskins, PE
FROM: Ryan Mitchell, PE, PLS
SUBJECT: 14107.001 —West Side Interceptor
Addendum to Preferred Route Assessment Report
Evaluation of using a Manning's n=0.009 for PVC Pipe
DATE: December 1, 2014
Keith,
This memo is intended to be an addendum to the Preferred Route Assessment Report and
will summarize the findings of evaluating the PVC Pipe using a Manning's "n" value of
0.009 instead of a Manning's "n" value of 0.013.
The City Staff and the project team have worked together to explore all possible options to
ensure that the recommended project is the most appropriate solution. The Preferred
Route Assessment utilized a Manning's "n" value of 0.013. This was utilized because
MDEQ Circular 2 states that sewers should be designed with a Manning's "n" value of
0.013. But, to ensure that all options were explored, the project team wanted to evaluate
the recommended project using a Manning's "n" value of 0.009.
The Handbook of PVC Pipe, Design & Construction, November 2005, states that "Studies
in the laboratory, and more importantly in actual use, have found the value of "n" for PVC to
range from 0.007 to 0.011... The Uni-Bell PVC Pipe Association recommends that the value
of the Manning's "n" factor be 0.009 for hydraulic design of PVC gravity sewer systems."
By reducing the "n" value, this increases the capacity of pipes and may reduce the size of
pipes needed.
Purpose:
To determine if utilizing PVC pipe and a Manning's "n" value of 0.009 will reduce the pipe
sizes required to carry the design flows and if so, what would the cost savings of utilizing
smaller pipe be.
Findings:
Utilizing the data presented in Chapter 7 of the Preferred Route Assessment and a
Manning's "n" value of 0.009, the following revised table can be calculated:
HELENA, IYTF
11:ALISPELL, MT
FORT COLLINS, CO
P0. 60x 5653
P.O. Box 5100
400 Remington Street
825 Custer Avenue
102 Cooperative Way, Suite 300
Suite B
Helena, MT 59604
Kalispell, M7 59903
Fort Collins, CO 80524
Tele 406.447.5000
7ele 406.752.5025
Tele 970.484.3206
Fax 406.447.5036
Fax 406.752.5024
Fax 970.484.3209
December 1, 2014
Keith Haskins, PE
Page 2of2
Segments
Dia.
in
Min Design
Slope ft/ft
Design Flov
MGD
Pipe Capacity @ 85%
Full MGD
1, 2-1
30
0.001 (0.10%)
12.53
12.48*
3, 4-1, 5, 6-1
27
0.0016 (0.16%)
10.77
11.92
7 (pipe transition)
24
0.0012 (0.12%)
6.83
7.54
7
21
0.001 (0.10%)
3.45
4.82
* 12.53 MGD equates to a normal depth of 85.5% of the pipe capacity. Therefore, this
segment of pipe will be 85.5% full instead of 85%.
By utilizing PVC pipe, with a Manning's "n" value of 0.009, all pipe segments can be
reduced by one pipe size (i.e., 36" diameter pipe will be reduced to 30" diameter pipe and
so on).
Using the pipe sizes shown above, revised cost estimates were developed. Detailed cost
estimates are attached. Below is a summary of the revised costs:
Full Build -Out Project = $16,453,400 (Utilizing a Manning's "n" value of 0.009)
Recommended Project = $10,370,300 (Utilizing a Manning's "n" value of 0.009)
By using the Manning's "n" value of 0.009 and reducing the pipe sizes by one pipe
diameter, a savings of $811,350 could be achieved for the Full Build -Out Project and
$622,570 could be achieved for the Recommended Project, when compared to the project
cost estimates developed utilizing a Manning's "n" value of 0.013.
The project team recommends that the City proceed with utilizing PVC pipe and a
Manning's "n" value of 0.009 for the WSI Project.
Thank you and please call if you have any questions.
Cc: File
K:AKa1-Prcj-Data\14107.000 -West Side Interceptor\H. Design Computations\2. Reports\Preferred Route Assessment\141201kh- Addendum To Report.Doc
SUMMARY OF PROJECT COSTS
WEST SIDE INTERCEPTOR PROJECT
FULL BUILD -OUT & SEGMENT COMPARISONS n=0.009
Updated 12-1-2014 by ILW
Total
Fees/Costs
AIRPORT GRAVITY MAIN
$1,353,816
FORCE MAIN - FUTURE 24" PIPE
$1,120,428
FORCEMAIN TO PUMP STATION
$1,370,076
SOUTH MERIDIAN PUMP STATION
$2,045,240
Subtotal =
$5,889,560
WEST SIDE INTERCEPTOR - GRAVITY COLLECTION SYSTEM
SEGMENT 1 - PUMP STATION TO BYPASS
$1,020,589
SEGMENT 2.1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
$2,737,094
SEGMENT 2.2 - BYPASS TO TWO MILE DRIVE (KALISPELL BYPASS)
(Not Preferred Route)
$2,783,520
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 (WEST VIEW DRIVE)
$616,764
SEGMENT 4-1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek Subdivision)
$1,236,572
SEGMENT 4.2 - LOT 48 TO THREE MILE DRIVE (Through Spring Creek Subdivision)
(Not Preferred Route)
$1,514,813
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND (In Parkland)
$624,684
SEGMENT 6.1 - PARKLAND TO PARKRIDGE DRIVE (Within Drainage)
$719,247
SEGMENT 6.2 - PARKLAND TO PARKRIDGE DRIVE (In Stillwater Road)
(Not Preferred Route)
$919,917
SEGMENT 7 - PARKRIDGE DRIVE TO W RESERVE DRIVE
$2,661,365
Subtotal =
$9,616,314
W RESERVE DRIVE TO PUMP STATION #36
$947,556
Total Project Costs
$16,453,430
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figur I (Figures)
AIRPORT GRAVITY
MAIN
$43,900.00
$17,600.00
$3.00
$800.00
$250.00
$12,000.00
$370.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$188,000.00
$0.00
$1.50
$0.30
$33,845.40
$112,818.00
$78,972.60
$43,900.00
$17,600.00
$1,200.00
$0.00
$0.00
$48,000.00
$795,500.00
$8,700.00
$1,340.00
$1,750.00
$1,750.00
$8,100.00
$12,340.00
$188,000.00
$1,128,180.00
$0.00
$0.00
$0.00
$0.00
$33,845.40
$112,818.00
$78,972.60
$225,636.00
$1,353,816.00
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
400
SY
Asphalt Removal
4
0
LF
Bore & Jack with 48" Steel Casing Pipe
5
0
LF
48" Steel Casing Pipe (by Open Cut)
6
4
EA
Manhole - 96" Sanitary Sewer
7
2,150
LF
Pipe - Buried: 54" Sanitary Sewer Main
Imported Trench Backfill - 3" Minus Crushed Subbase
8
290
CY
9
670
SY
Stabilization Fabric
10
70
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
50
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
90
TON
Asphalt Concrete Pavement: 4" Thick
13
6,170
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
IDesign Engineering
3 1
TOTAL COSTS:
LS
lConstruction Engineering
Subtotal Professional Fees =
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
FORCEMAIN - 24" PIPE DIAMETER
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,680
SY
Asphalt Removal
4
2
EA
Manhole - 48" Sanitary Sewer
5
4,450
LF
Pipe - Buried: 24" Sanitary Sewer Force Main - HDPE
.(Trenching, Bedding, and Backfill Included in this Item
8
0
EA
IValve - 12"
9
0
EA
Valve - 20"
10
1
EA
Existing Sewer Main Connection
11
2,660
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
2,460
SY
Stabilization Fabric
13
620
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
410
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
810
TON
jAsphalt Concrete Pavement: 4" Thick
16
5,640
SY
lVegetation Restoration
17
LF
lConcrete Curb and Gutter
18
1
LS
20% Contingency
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
18,000
SF
Easements
3
0
SF
Permits
Subtotal Land Costs
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1
LS
Construction Engineering
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
ures (Fig) (Figures)
$34,400.00
$34,400.00
$27,500.00
$27,500.00
$3.00
$11,040.00
$4,000.00
$8,000.00
$105.00
$467,250.00
$2,500.00
$0.00
$3,500.00
$0.00
$3,000.00
$3,000.00
$30.00
$79,800.00
$2.00
$4,920.00
$25.00
$15,500.00
$35.00
$14,350.00
$90.00
$72,900.00
$2.00
$11,280.00
$15.00
$0.00
$150,000.00
$150,000.00
$899,940.00
$0.00
$1.50 $27,000.00
$0.00 $0.00
$27,000.00
$40,498.20 $40,498.20
$89,994.00 $89,994.00
$62,995.80 $62,995.80
$193,488.00
$1,120,428.00
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
FORCEMAIN TO PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
5,600
SY
Asphalt Removal
4
2
EA
Manhole - 48" Sanitary Sewer
5
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
.(Trenching, Bedding, and Backfill Included in this Item
6
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
Pie placed in common trench
7
4,200
LF
Pipe - Buried: 20" Sanitary Sewer Force Main - C905 DR18 PCV Pipe
Pie placed in common trench
8
8
EA
JValve - 12"
9
4
EA
Valve - 20"
10
1
EA
Existing Sewer Main Connection
11
4,050
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
3,740
SY
Stabilization Fabric
13
940
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
630
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
1,240
TON
Asphalt Concrete Pavement: 4" Thick
16
0
SY
Vegetation Restoration
17
LF
Concrete Curb and Gutter
18
1
LS
20% Contingency
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements
3
0
SF
Permits
Subtotal Land Costs
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
IDesign Engineering
3 1
LS
lConstruction Engineering
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
ures (Fig) (Figures)
$43,600.00
$43,600.00
$34,900.00
$34,900.00
$3.00
$16,800.00
$4,000.00
$8,000.00
$65.00
$273,000.00
$20.00 1 $84,000.00
$40.00 1 $168,000.00
$2,500.00 $20,000.00
$3,500.00 $14,000.00
$3,000.00 $3,000.00
$30.00 $121,500.00
$2.00 $7,480.00
$25.00 $23,500.00
$35.00 $22,050.00
$90.00 $111,600.00
$2.00 $0.00
$15.00 $0.00
$190,300.00 $190,300.00
$1,141,730.00
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
$34,251.90 $34,251.90
$114,173.00 $114,173.00
$79,921.10 $79,921.10
$228,346.00
$1,370,076.00
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SOUTH MERIDIAN PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Site Work and Buried Piping
3
1
LS
Shoring, Dewatering, and Structural Excavation
4
1
LS
Pump Station Structure
5
1
LS
Pump Station Mechanical
6
1
LS
Pump Station HVAC
7
1
LS
Pump Station Electrical
8
1
LS
20% Contingency
Land Costs
1
1
LS
Parcel Acquisition
2
0
SF
Easements
3
0
SF
Permits
Professional Fees
1
1
LS
Project Management, Permitting, and Land
2
1
LS
Design Engineering
3
1 1
ILS
lConstruction Engineerina
n
Subtotal Land Costs
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
(Figur I (Figures)
$63,500.00 $63,500.00
$180,000.00 $180,000.00
$260,000.00 $260,000.00
$380,000.00 $380,000.00
$240,000.00 $240,000.00
$30,000.00 $30,000.00
$180,000.00 $180,000.00
$266,700.00 $266,700.00
$1,600,200.00
$100,000.00 $100,000.00
$0.00 $0.00
$0.00 $0.00
$100,000.00
$73,006.00 $73,006.00
$160,020.00 $160,020.00
$112,014.00 $112,014.00
$345,040.00
TAL COSTS: 1 $2,045,240.00
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figur I (Figures)
SEGMENT 1 - PUMP
STATION
TO BYPASS
$29,200.00
$11,700.00
$3.00
$800.00
$250.00
$7,000.00
$125.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$124,900.00
$0.00
$1.50
$0.30
$46,711.60
$74,955.33
$52,468.73
$29,200.00
$11,700.00
$1,700.00
$0.00
$0.00
$70,000.00
$446,250.00
$12,300.00
$1,893.33
$2,500.00
$2,450.00
$11,700.00
$34,960.00
$124,900.00
$749,553.33
$0.00
$85,500.00
$11,400.00
$96,900.00
$46,711.60
$74,955.33
$52,468.73
$174,135.67
$1,020,589.00
Construction Costs
1
1
LS
IMobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
567
SY
Asphalt Removal
Bore & Jack with 48" Steel Casing Pipe
4
LF
5
LF
48" Steel Casing Pipe (by Open Cut)
6
10
EA
Manhole - 72" Sanitary Sewer
7
3,570
LF
Pipe - Buried: 30" Sanitary Sewer Main
Imported Trench Backfill - 3" Minus Crushed Subbase
8
410
CY
9
947
SY
Stabilization Fabric
10
100
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
70
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
130
TON
Asphalt Concrete Pavement: 4" Thick
13
17,480
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
57,000
SF
Easements (30' Wide)
3
38,000
SIF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1
TOTAL COSTS:
LS
Construction Engineering
Subtotal Professional Fees =
Item
No.
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Quantity Unit
Unit
Description
SEGMENT 2-1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,333
SY
Asphalt Removal
4
360
LF
Bore & Jack with 48" Steel Casing Pipe
5
265
LF
48" Steel Casing Pipe (by Open Cut)
6
16
EA
Manhole - 72" Sanitary Sewer
7
600
LF
Pipe - Buried: 12" Sanitary Sewer Main
8
6,570
LF
Pipe - Buried: 30" Sanitary Sewer Main
9
2,410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
10
2,230
SY
Stabilization Fabric
11
560
CY
Select Sub -Base Course - 3" Minus: 9" Thick
12
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
13
740
TON
Asphalt Concrete Pavement: 4" Thick
14
22,620
SY
Vegetation Restoration
15
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
102,000
ISF
jEasements (30' Wide)
3
78.500
ISF
lPermits (20' Wide)
Professional Fees
1 1 1 ILS jProject Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
3 1 1 ILS lConstruction Enqineerinq
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
(Figur I (Figures)
$81,700.00 $81,700.00
$32,700.00 $32,700.00
$3.00 $10,000.00
$780.00 $280,800.00
$345.00 $91,425.00
$7,000.00 $112,000.00
$71.00 $42,600.00
$134.00 $880,380.00
$30.00 $72,300.00
$2.00 $4,460.00
$25.00 $14,000.00
$35.00 $13,300.00
$90.00 $66,600.00
$2.00 $45,240.00
$349,500.00 $349,500.00
$2,097,005.00
$0.00 $0.00
$1.50 $153,000.00
$0.30 $23,550.00
$176,550.00
$107,047.65 $107,047.65
$209,700.50 $209,700.50
$146,790.35 $146,790.35
$463,538.50
$2,737,093.50
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figures) I (Figures)
2-2 - BYPASS TO TWO MILE DRIVE (KALISPELL
on Costs
I
1 1
LS
iMobilization, Bonding and Submittals (t)io Max)
2
1
LS
Traffic Control
3
2,800
SY
Asphalt Removal
4
150
LF
Bore & Jack with 48" Steel Casing Pipe
5
1,400
LF
48" Steel Casing Pipe (by Open Cut)
6
14
EA
Manhole - 72" Sanitary Sewer
7
6,735
LF
Pipe - Buried: 30" Sanitary Sewer Main
8 2,031
9 1,871
10 470
11 320
12 620
13 10,56
14 1
Land Costs
1 0
2 24,00
3 16,00
Imported Trench Backfill - 3" Minus Crushed Subbase
Stabilization Fabric
Select Sub -Base Course - 3" Minus: 9" Thick
Crushed Base Course - 3/4" Minus: 6" Thick
Asphalt Concrete Pavement: 4" Thick
LS 120%
Easements (30' V1
Permits (20' Wide
Subtotal Construction Costs
Subtotal Land Costs
Professional Fees
1 1 1 ILS jProject Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
3 1 1 ILS lConstruction Engineerina
I I Subtotal Professional Fees =1
TAL COSTS:
$88,700.00 $88,700.00
$35,500.00 $35,500.00
$3.00 $8,400.00
$780.00 $117,000.00
$345.00 $483,000.00
$7,000.00 $98,000.00
$134.00 $902,490.00
$30.00 $60,900.00
$2.00 $3,740.00
$25.00 $11,750.00
$35.00 $11,200.00
$90.00 $55,800.00
$2.00 $21,120.00
$379,500.00 $379,500.00
$2,277,100.00
$0.00 $0.00
$1.50 $36,000.00
$0.30 $4,800.00
$40,800.00
$78,513.00 $78,513.00
$227,710.00 $227,710.00
$159,397.00 $159,397.00
$465,620.00
00�$2,783,520.00
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana ' (406) 752-5025
Item Unit
No. Quantity Unit Description
Engineer's Estimate
Unit Price
(Figures)
Total Price
(Figures)
TO LOT 48 (WEST VIEW DRIVE) _
$18,600.00
$37,200.00
$3.00
$780.00
$345.00
$6,500.00
$122.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$85,700.00
$0.00
$1.00
$0.20
$15,419.10
$51,397.00
$35,977.90
$18,600.00
$37,200.00
$7,000.00
$0.00
$0.00
$32,500.00
$213,500.00
$50,700.00
$3,120.00
$9,750.00
$9,100.00
$46,800.00
$0.00
$85,700.00
$513,970.00
$0.00
$0.00
$0.00
$0.00
$15,419.10
$51,397.00
$35,977.90
$102,794.00
$616,764.00
SEGMENT 3 - TWO MILE DRIVE
Construction Costs
1
1
LS
IMobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
2,333
SY
Asphalt Removal
Bore & Jack with 48" Steel Casing Pipe
4
LF
5
LF
48" Steel Casing Pipe (by Open Cut)
6
5
EA
Manhole - 60" Sanitary Sewer
7
1,750
LF
Pipe - Buried: 27" Sanitary Sewer Main
Imported Trench Backfill - 3" Minus Crushed Subbase
8
1,690
CY
9
1,560
SY
Stabilization Fabric
10
390
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
260
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
520
TON
Asphalt Concrete Pavement: 4" Thick
13
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SIF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1 LS
TOTAL COSTS:
Construction Engineering
Subtotal Professional Fees =
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figures) I (Figures)
SEGMENT 4-1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek
Construction Costs
1 1 LS Mobilization, Bonding and Submittals (5% Max)
2 1 LS Traffic Control
3 3,400 SY Asphalt Removal
4 1 EA Abandon Existing Lift Station
5
LF
Bore & Jack with 48
13
2,460
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
14
3,400
SY
Stabilization Fabric
15
570
CY
Select Sub -Base Course - 3" Minus: 9" Thick
16
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
17
750
TON
Asphalt Concrete Pavement: 4" Thick
18
3,230
SY
Vegetation Restoration
19
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
1
LS
Parcel Acquisition
2
21,000
SF
Easements (30' Wide)
3
14,000
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3
1
LS
Construction Engineering
Subtotal Professional Fees
$32,500.00 $32,500.00
$65,000.00 $65,000.00
$3.00 $10,200.00
$40,000.00 $40,000.00
$780.00
$0.00
$345.00
$0.00
$80.00
$8,000.00
$1,200.00
$34,800.00
$5,000.00
$35,000.00
$6,500.00
$52,000.00
$71.00
$134,900.00
$130.00
$159,900.00
$30.00
$73,800.00
$2.00
$6,800.00
$25.00
$14,250.00
$35.00
$13,300.00
$90.00
$67,500.00
$2.00
$6,460.00
$150,900.00
$150,900.00
$905,310.00
$100,000.00 $100,000.00
$0.70 $14,700.00
$0.15 $2,100.00
$116,800.00
$60,559.30 $60,559.30
$90,531.00 $90,531.00
$63,371.70 $63,371.70
$214,462.00
$1,236,572.00
Item
No.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
2
3
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Unit Unit Price Total Price
Quantity Unit Description (Figures) I (Figures)
4-2 - LOT 48 TO THREE MILE DRIVE (Through Spring Creek Su
on Costs
1 LS Mobilization, Bonding and Submittals (5% Max)
1 LS Traffic Control
4,301 SY Asphalt Removal
1 EA Abandon Existing Lift Station
11
LF
Bore & Jack with 48
0
LS
IParcel Acquisition
0
SF
Easements (30' Wide
0
SF
Permits (20' Wide)
Fees
1
LS
Project Management,
1
LS
Design Engineering
1
ILS
lConstruction Enqinee
Subtotal Construction Costs
Subtotal Professional Fees
$45,000.00 $45,000.00
$91,500.00 $91,500.00
$3.00 $12,904.00
$30,000.00 $30,000.00
$780.00 $0.00
$345.00 $0.00
$6,500.00 $65,000.00
$130.00 $600,600.00
$30.00 $93,300.00
$2.00 $5,740.00
$25.00 $18,000.00
$35.00 $16,800.00
$90.00 $57,600.00
$2.00 $15,500.00
$210,400.00 $210,400.00
$1,262,344.00
$100,000.00 $0.00
$0.70 $0.00
$0.15 $0.00
$0.00
$37,870.32 $37,870.32
$126,234.40 $126,234.40
$88,364.08 $88,364.08
$252,468.80
$1,514,812.80
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana ' (406) 752-5025
Item Unit
No. Quantity Unit Description
Engineer's Estimate
Unit Price
(Figures)
Total Price
(Figures)
DRIVE TO PARKLAND (In Parkland)
IMobilization, Bonding and Submittals (5% Max)
Traffic Control
Asphalt Removal
Abandon Existing Lift Station
Bore & Jack with 40" Steel Casing Pipe
40" Steel Casing Pipe (by Open Cut)
Manhole - 60" Sanitary Sewer
$19,700.00
$19,700.00
$3.00
$30,000.00
$780.00
$345.00
$6,500.00
$71.00
$114.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$86,800.00
$0.00
$1.25
$0.25
$15,617.10
$52,057.00
$36,439.90
$19,700.00
$19,700.00
$600.00
$60,000.00
$78,000.00
$0.00
$32,500.00
$31,950.00
$160,740.00
$4,500.00
$280.00
$1,250.00
$1,050.00
$4,500.00
$19,000.00
$86,800.00
$520,570.00
$0.00
$0.00
$0.00
$0.00
$15,617.10
$52,057.00
$36,439.90
$104,114.00
$624,684.00
SEGMENT 5 - THREE
MILE
Construction Costs
1
1
LS
2
1
LS
3
200
SY
4
2
EA
5
100
LF
6
LF
7
5
EA
8
450
LF
Pipe - Buried: 12" Sanitary Sewer Main
9
1,410
LF
Pipe - Buried: 27" Sanitary Sewer Main
10
150
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
140
SY
Stabilization Fabric
12
50
CY
Select Sub -Base Course - 3" Minus: 12" Thick
13
30
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
50
TON
Asphalt Concrete Pavement: 4" Thick
15
9,500
SY
Vegetation Restoration
16
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1 0
2 0
3 0
Professional Fees
1 1
2 1
3 1
TOTAL COSTS:
LS
Parcel Acquisition
SF
Easements (30' Wide)
SF
Permits (20' Wide)
Subtotal Land Costs =
LS
Project Management, Permitting, and Land Acquisition
ILS
Design Engineering
ILS
Construction Engineering
Subtotal Professional Fees =
19
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
SEGMENT 6-1 - PARKLAND
TO PARKRIDGE DRIVE (Within Drainage)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
1,500
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
1,050
LF
Pipe - Buried: 8" Sanitary Sewer Main
10
1,600
LF
Pipe - Buried: 27" Sanitary Sewer Main
11
1,090
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
1,000
SY
Stabilization Fabric
13
250
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
170
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
330
TON
Asphalt Concrete Pavement: 4" Thick
16
8,480
SY
Vegetation Restoration
17
1
LS
20% Contingency
Sub
Land Costs
1
1 1
ILS
jParGeI Acquisition
2
1 46.200
ISF
lEasements (30' Wide)
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 LS Design Engineering
3 1 LS Construction Engineering
n
Subtotal Land Costs
Engineer's Estimate
Unit Price Total Price
ures (Fig) (Figures)
$18,800.00
$18,800.00
$18,800.00
$18,800.00
$3.00
$4,500.00
$30,000.00
$30,000.00
$780.00
$0.00
$345.00
$0.00
$6,500.00
$32,500.00
$62.00
$65,100.00
$105.00
$168,000.00
$30.00
$32,700.00
$2.00
$2,000.00
$25.00
$6,250.00
$35.00
$5,950.00
$90.00
$29,700.00
$2.00
$16,960.00
$86,300.00
$86,300.00
$517,560.00
$0.00 $0.00
$1.25 $57,750.00
$0.25 $7,700.00
$65,450.00
$48,251.80 $48,251.80
$51,756.00 $51,756.00
$36,229.20 $36,229.20
$136,237.00
$719,247.00
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
Engineer's Estimate
Unit Price
(Figures)
Total Price
(Figures)
TO PARKRIDGE DRIVE (In Stillwater Road)
Mobilization, Bonding and Submittals (5% Max)
Traffic Control
Asphalt Removal
Abandon Existing Lift Station
Bore & Jack with 48" Steel Casing Pipe
48" Steel Casing Pipe (by Open Cut)
Manhole - 60" Sanitary Sewer
$23,800.00
$38,200.00
$3.00
$30,000.00
$780.00
$345.00
$6,500.00
$62.00
$105.00
$30.00
$2.00
$25.00
$35.00
$90.00
$3.00
$114,500.00
$0.00
$1.25
$0.25
$52,482.30
$68,691.00
$48,083.70
$23,800.00
$38,200.00
$4,800.00
$30,000.00
$0.00
$0.00
$45,500.00
$17,360.00
$307,650.00
$34,800.00
$2,140.00
$6,750.00
$6,300.00
$21,600.00
$33,510.00
$114,500.00
$686,910.00
$0.00
$56,250.00
$7,500.00
$63,750.00
$52,482.30
$68,691.00
$48,083.70
$169,257.00
$919,917.00
SEGMENT 6-2 - PARKLAND
Construction Costs
1
1
LS
2
1
LS
3
1,600
SY
4
1
EA
5
LF
6
LF
7
7
EA
8
280
LF
Pipe - Buried: 8" Sanitary Sewer Main
9
2,930
LF
Pipe - Buried: 27" Sanitary Sewer Main
10
1,160
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
1,070
SY
Stabilization Fabric
12
270
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
180
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
240
TON
Asphalt Concrete Pavement: 4" Thick
15
11,170
SY
Vegetation Restoration
16
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1 1
2 45,000
3 30,000
Professional Fees
1 1
2 1
3 1
TOTAL COSTS:
LS
Parcel Acquisition
SF
Easements (30' Wide)
SF
Permits (20' Wide)
Subtotal Land Costs =
LS
Project Management, Permitting, and Land Acquisition
ILS
Design Engineering
ILS
Construction Engineering
Subtotal Professional Fees =
19
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figures) I (Figures)
7 - PARKRIDGE DRIVE TO W RESERVE DRIVE
on Costs
I
1 1
LS
iMobilization, Bonding and Submittals (t)io Max)
2
1
LS
Traffic Control
3
80
SY
Asphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
23
EA
Manhole - 60" Sanitary Sewer
7
3,980
LF
Pipe - Buried: 21" Sanitary Sewer Main
8
6 850
LF
Pipe - Buried: 24" Sanitary Sewer Main
9
300
LF
Pipe - Buried: 27" Sanitary Sewer Main
10
60
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
60
SY
Stabilization Fabric
12
20
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
10
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
20
TON
Asphalt Concrete Pavement: 4" Thick
15
61,500
SY
Vegetation Restoration
16
1
LS
20% Contingency
Sub
Land Costs
1
0
LS
Parcel Acquisition
2
332,100
SF
Easements (30' Wide)
3
221,400
SF
Permits (20' Wide)
Professional Fees
1
1 1
LS
Project Management, Permitting, and Land Acquisitior
2
1 1
ILS
IDesign Engineering
3
1 1
ILS
lConstruction Engineering
n
Subtotal Land Costs
$57,700.00 $57,700.00
$23,100.00 $23,100.00
$3.00 $240.00
$780.00 $0.00
$345.00 $0.00
$6,500.00 $149,500.00
$85.00 $338,300.00
$92.00 $630,200.00
$105.00 $31,500.00
$30.00 $1,800.00
$2.00 $120.00
$25.00 $500.00
$35.00 $350.00
$90.00 $1,800.00
$2.00 $123,000.00
$271,600.00 $271,600.00
$1,629,710.00
$0.00 $0.00
$1.25 $415,125.00
$0.25 $55,350.00
$470,475.00
$284,128.80 $284,128.80
$162,971.00 $162,971.00
$114,079.70 $114,079.70
$561,179.50
$2,661,364.50
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
RESERVE DRIVE TO PUMP
STATION #36
instruction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
800
SY
Asphalt Removal
4
2
EA
Manhole - 60" Sanitary Sewer
5
5,000
LF
Pipe - Buried: 10" Sanitary Sewer Force Main - C900 DR 18 PVC
6
1,000
LF
Pipe - Directional Drilled: 10" Sanitary Sewer Force Main - HDPE
7
8
EA
Plug Valve - 6"
8
8
EA
Plug Valve - 12"
9
1
EA
Existing Sewer Main Connection
10
580
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
540
SY
Stabilization Fabric
12
140
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
90
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
180
TON
Asphalt Concrete Pavement: 4" Thick
15
18,000
SY
Vegetation Restoration
16
0
LF
Concrete Curb and Gutter
17
1 1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 0 SF Easements
3 0 SF Permits
Subtotal Land Costs =
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 ILS IDesign Engineering
3 1 ILS lConstruction Enqineerinq
I I Subtotal Professional Fees =1
Engineer's Estimate
Unit Price Total Price
(Figur I (Figures)
$30,200.00
$24,100.00
$3.00
$6,500.00
$60.00
$160.00
$2,500.00
$3,500.00
$3,000.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$15.00
$131,600.00
$0.00
$0.00
$23,688.90
$78,963.00
$55,274.10
$30,200.00
$24,100.00
$2,400.00
$13,000.00
$300,000.00
$160,000.00
$20,000.00
$28,000.00
$3,000.00
$17,400.00
$1,080.00
$3,500.00
$3,150.00
$16,200.00
$36,000.00
$0.00
$131,600.00
$789,630.00
$0.00
$0.00
$0.00
$0.00
$23,688.90
$78,963.00
$55,274.10
$157,926.00
$947,556.00
SUMMARY OF PROJECT COSTS
WEST SIDE INTERCEPTOR PROJECT
RECOMMENDED PROJECT MANNINGS n=0.009
Updated 12-1-14 by REM
Total
Fees/Costs
FORCEMAIN TO PUMP STATION
$1,370,076
SOUTH MERIDIAN PUMP STATION
$2,045,240
Subtotal =
$3,415,316
WEST SIDE INTERCEPTOR - GRAVITY COLLECTION SYSTEM
SEGMENT 1 - PUMP STATION TO BYPASS
$1,020,589
SEGMENT 2.1 - BYPASS TO TWO MILE DRIVE RAILS TO TRAILS
$2,737,094
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 WEST VIEW DRIVE
$616,764
SEGMENT 4.1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek Subdivision
$1,236,572
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND In Parkland
$624,684
SEGMENT 6.1 - PARKLAND TO PARKRIDGE DRIVE Within Drainage)
$719,247
Subtotal =
$6,954,950
Total Project Costs
$10 370 266
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Quantity Unit
Unit
Description
V TO PUMP STATION
n Costs
1
LS
Mobilization, Bonding and Submittals (5% Max)
1
LS
Traffic Control
5,600
SY
Asphalt Removal
2
EA
Manhole - 48" Sanitary Sewer
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
(Trenching, Bedding, and Backfill Included in this Item
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
Pie placed in common trench)
4,200
LF
Pipe - Buried: 20" Sanitary Sewer Force Main - C905 DR18 PCV Pipe
Pie placed in common trench
8
EA
Valve - 12"
4
EA
IValve - 20"
1
EA
Existing Sewer Main Connection
4,050
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
3,740
SY
Stabilization Fabric
940
CY
Select Sub -Base Course - 3" Minus: 9" Thick
630
CY
Crushed Base Course - 3/4" Minus: 6" Thick
1,240
TON
Asphalt Concrete Pavement: 4" Thick
0
SY
Vegetation Restoration
LF
Concrete Curb and Gutter
1
LS
20% Continaencv
ind Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements
3
0
SF
Permits
ofessional Fees
1
1
LS
Project Managem,
2
1
LS
Design Engineerir
3
1
LS
Construction Engi
)TAL COSTS:
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$43,600.00 $43,600.00
$34,900.00 $34,900.00
$3.00 $16,800.00
$4,000.00 $8,000.00
$65.00 $273,000.00
$20.00 1 $84,000.00
$40.00 1 $168,000.00
$2,500.00 $20,000.00
$3,500.00 $14,000.00
$3,000.00 $3,000.00
$30.00 $121,500.00
$2.00 $7,480.00
$25.00 $23,500.00
$35.00 $22,050.00
$90.00 $111,600.00
$2.00 $0.00
$15.00 $0.00
$190,300.00 $190,300.00
$1,141,730.00
$0.00
$0.00 $0.00
$0.00 $0.00
$0.00
$34,251.90 $34,251.90
$114,173.00 $114,173.00
$79,921.10 $79,921.10
$228,346.00
$1,370,076.00
PREPARED BY RPA 12/1/2014 Page 2
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SOUTH MERIDIAN PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Site Work and Buried Piping
3
1
LS
Shoring, Dewatering, and Structural Excavation
4
1
LS
Pump Station Structure
5
1
LS
Pump Station Mechanical
6
1
LS
Pump Station HVAC
7
1
LS
jPump Station Electrical
8
1
LS
20% Continqencv
Subtotal Construction Costs
Land Costs
1 1 LS Parcel Acquisition
2 0 SF Easements
3 0 SF Permits
Subtotal Land Costs =
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 ILS IDesign Engineering
3 1 ILS lConstruction Engineering
I I Subtotal Professional Fees =1
TAL COSTS:
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$63,500.00 $63,500.00
$180,000.00 $180,000.00
$260,000.00 $260,000.00
$380,000.00 $380,000.00
$240,000.00 $240,000.00
$30,000.00 $30,000.00
$180,000.00 $180,000.00
$266,700.00 $266,700.00
$1,600,200.00
$100,000.00 $100,000.00
$0.00 $0.00
$0.00 $0.00
$100,000.00
$73,006.00 $73,006.00
$160,020.00 $160,020.00
$112,014.00 $112,014.00
$345,040.00
$2,045,240.00
PREPARED BY RPA 12/1/2014 Page 3
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 1 - PUMP STATION
TO BYPASS
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
567
SY
Asphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
10
EA
Manhole - 72" Sanitary Sewer
7
3,570
LF
Pipe - Buried: 30" Sanitary Sewer Main
8
410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
947
SY
Stabilization Fabric
10
100
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
70
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
130
TON
Asphalt Concrete Pavement: 4" Thick
13
17,480
SY
lVegetation Restoration
14
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
57,000
SF
Easements (30' Wide)
3
38,000
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1 1
LS
Project Management, Permitting, and Land Acquisition
2
1 1
ILS
IDesign Engineering
lConstruction Enaineerina
I I Subtotal Professional Fees =1
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$29,200.00 $29,200.00
$11,700.00 $11,700.00
$3.00 $1,700.00
$800.00
$0.00
$250.00
$0.00
$7,000.00
$70,000.00
$125.00
$446,250.00
$30.00
$12,300.00
$2.00
$1,893.33
$25.00
$2,500.00
$35.00
$2,450.00
$90.00
$11,700.00
$2.00
$34,960.00
$124,900.00
$124,900.00
$749,553.33
$0.00 1 $0.00
$1.50I $85,500.00
$0.30 $11,400.00
$96,900.00
$46,711.60 $46,711.60
$74,955.33 $74,955.33
$52,468.73 $52,468.73
$174,135.67
$1,020,589.00
PREPARED BY RPA 12/1/2014 Page 4
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 2-1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,333
SY
Asphalt Removal
4
360
LF
Bore & Jack with 48" Steel Casing Pipe
5
265
LF
48" Steel Casing Pipe (by Open Cut)
6
16
EA
Manhole - 72" Sanitary Sewer
7
600
LF
Pipe - Buried: 12" Sanitary Sewer Main
8
6,570
LF
Pipe - Buried: 30" Sanitary Sewer Main
9
2,410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
10
2,230
SY
Stabilization Fabric
11
560
CY
Select Sub -Base Course - 3" Minus: 9" Thick
12
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
13
740
TON
Asphalt Concrete Pavement: 4" Thick
14
22,620
SY
Vegetation Restoration
15
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
102,000
SF
Easements (30' Wide)
3
78,500
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3
1
LS
lConstruction Engineering
Subtotal Professional Fees =
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$81,700.00 $81,700.00
$32,700.00 $32,700.00
$3.00 $10,000.00
$780.00 $280,800.00
$345.00 $91,425.00
$7,000.00 $112,000.00
$71.00 $42,600.00
$134.00 $880,380.00
$30.00 $72,300.00
$2.00 $4,460.00
$25.00 $14,000.00
$35.00 $13,300.00
$90.00 $66,600.00
$2.00 $45,240.00
$349,500.00 $349,500.00
$2,097,005.00
$0.00 $0.00
$1.50 $153,000.00
$0.30 $23,550.00
$176,550.00
$107,047.65 $107,047.65
$209,700.50 $209,700.50
$146,790.35 $146,790.35
$463,538.50
$2,737,093.50
PREPARED BY RPA 12/1/2014 Page 5
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 (WEST VIEW DRIVE)
Construction Costs
1
1
LS
I Mobilization, Bonding and Submittals (5% Max)
2
1
LS
ITraffic Control
3
1 2,333
SY
jAsphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
5
EA
Manhole - 60" Sanitary Sewer
7
1,750
LF
Pipe - Buried: 27" Sanitary Sewer Main
8
1,690
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
1,560
SY
Stabilization Fabric
10
390
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
260
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
520
TON
Asphalt Concrete Pavement: 4" Thick
13
SY
Vegetation Restoration
14
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 0 SF Easements (30' Wide)
3 0 SF Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1 1 1 LS Project Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
lConstruction Enaineerina
I I Subtotal Professional Fees =1
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$18,600.00
$18,600.00
$37,200.00
$37,200.00
$3.00
$7,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$32,500.00
$122.00
$213,500.00
$30.00
$50,700.00
$2.00
$3,120.00
$25.00
$9,750.00
$35.00
$9,100.00
$90.00
$46,800.00
$2.00
$0.00
$85,700.00
$85,700.00
$513,970.00
$0.00
$0.00
$1.00
$0.00
$0.20
$0.00
$0.00
$15,419.10
$15,419.10
$51,397.00
$51,397.00
$35,977.90
$35,977.90
$102,794.00
$616,764.00
PREPARED BY RPA 12/1/2014 Page 6
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 4-1 - LOT 48 TO THREE
MILE DRIVE (Through Aspen Creek Subdivision
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,400
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
100
SY
Concrete Sidewalk Removal & Replacement
8
29
EA
Sanitary Sewer Service - Sch. 40 PVC Pipe
9
7
EA
Manhole - 48" Sanitary Sewer
10
8
EA
Manhole - 60" Sanitary Sewer
11
1,900
LF
Pipe -Buried: 12" Sanitary Sewer Main
12
1,230
LF
Pipe - Buried: 27" Sanitary Sewer Main
13
2,460
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
14
3,400
SY
Stabilization Fabric
15
570
CY
Select Sub -Base Course - 3" Minus: 9" Thick
16
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
17
750
TON
Asphalt Concrete Pavement: 4" Thick
18
3,230
ISY
lVegetation Restoration
19
1 1
ILS
20% Continaencv
d Costs
1
1
LS
2
21,000
SF
3
14,000
SF
fessional Fees
1
1
LS
2
1
LS
3
1
LS
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$32,500.00
$32,500.00
$65,000.00
$65,000.00
$3.00
$10,200.00
$40,000.00
$40,000.00
$800.00
$0.00
$250.00
$0.00
$80.00
$8,000.00
$1,200.00
$34,800.00
$5,000.00
$35,000.00
$6,500.00
$52,000.00
$71.00
$134,900.00
$130.00
$159,900.00
$30.00
$73,800.00
$2.00
$6,800.00
$25.00
$14,250.00
$35.00
$13,300.00
$90.00
$67,500.00
$2.00
$6,460.00
$150,900.00
$150,900.00
$905, 310.00
$100,000.00 $100,000.00
$0.70 $14,700.00
$0.15 $2,100.00
$116,800.00
$60,559.30 $60,559.30
$90,531.00 $90,531.00
$63,371.70 $63,371.70
$214,462.00
$1,236,572.00
PREPARED BY RPA 12/1/2014 Page 7
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND (In Parkland)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
200
SY
Asphalt Removal
4
2
EA
Abandon Existing Lift Station
5
100
LF
Bore & Jack with 40" Steel Casing Pipe
6
LF
40" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
450
LF
Pipe - Buried: 12" Sanitary Sewer Main
9
1,410
LF
Pipe - Buried: 27" Sanitary Sewer Main
10
150
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
140
SY
Stabilization Fabric
12
50
CY
Select Sub -Base Course - 3" Minus: 12" Thick
13
30
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
50
TON
Asphalt Concrete Pavement: 4" Thick
15
9,500
SY
Vegetation Restoration
16
1
LS
20% Contingency
d Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SF
Permits (20' Wide)
fessional Fees
1
1
LS
Project Management, Permitting, and Land
2
1
ILS
IDesign Engineering
3
1
LS
lConstruction Engineering
Subtotal Construction Costs
Subtotal Land Costs
n
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$19,700.00 $19,700.00
$19,700.00 $19,700.00
$3.00
$600.00
$30,000.00
$60,000.00
$780.00
$78,000.00
$250.00
$0.00
$6,500.00
$32,500.00
$71.00
$31,950.00
$114.00
$160,740.00
$30.00
$4,500.00
$2.00
$280.00
$25.00
$1,250.00
$35.00
$1,050.00
$90.00
$4,500.00
$2.00
$19,000.00
$86,800.00
$86,800.00
$520,570.00
$0.00
$0.00
$1.25
$0.00
$0.25
$0.00
$0.00
$15,617.10
$15,617.10
$52,057.00
$52,057.00
$36,439.90
$36,439.90
$104,114.00
PREPARED BY RPA 12/1/2014 Page 8
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 6-1 - PARKLAND TO PARKRIDGE DRIVE (Within Drainage)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
1,500
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
1,050
LF
Pipe - Buried: 8" Sanitary Sewer Main
10
1,600
LF
Pipe - Buried: 27" Sanitary Sewer Main
11
1,090
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
1,000
SY
Stabilization Fabric
13
250
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
170
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
330
TON
Asphalt Concrete Pavement: 4" Thick
16
8,480
SY
Vegetation Restoration
17
1
LS
20% Contingency
d Costs
1
1
LS
Parcel Acquisition
2
46,200
SF
Easements (30' Wide)
3
30,800
SF
Permits (20' Wide)
fessional Fees
1
1
LS
Project Management, Permitting, and Land
2
1
ILS
IDesign Engineering
3
1
LS
lConstruction Engineering
Subtotal Construction Costs
Subtotal Land Costs
n
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$18,800.00
$18,800.00
$18,800.00
$18,800.00
$3.00
$4,500.00
$30,000.00
$30,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$32,500.00
$62.00
$65,100.00
$105.00
$168,000.00
$30.00
$32,700.00
$2.00
$2,000.00
$25.00
$6,250.00
$35.00
$5,950.00
$90.00
$29,700.00
$2.00
$16,960.00
$86,300.00
$86,300.00
$517,560.00
$0.00 $0.00
$1.25 $57,750.00
$0.25 $7,700.00
$65,450.00
$48,251.80 $48,251.80
$51,756.00 $51,756.00
$36,229.20 $36,229.20
$136,237.00
$719,247.00
PREPARED BY RPA 12/1/2014 Page 9
West Side Interceptor
Preferred Route Assessment
Appendices.....................................................................................................................iv
ExecutiveSummary ........................................................................................................ 1
1. Evaluation of Existing Facilities................................................................................4
1.A. Existing Gravity Collection Mains....................................................................4
1.B. Existing Pumping Stations..............................................................................
4
1.C. Existing Wastewater Treatment Facility..........................................................
5
1.D. Previous Wastewater Planning Documents ....................................................
5
2. Need for West Side Interceptor................................................................................
7
3. Sewer Service Area.................................................................................................
8
4. Sewer Service Area Evaluation..............................................................................
10
4.A. Topography...................................................................................................10
4.B. Existing Right-of-Ways..................................................................................
10
4.C. Availability of Future Expansion....................................................................
10
4,0. Flood Considerations....................................................................................
10
4.E. Geologic Information.....................................................................................
11
4.F. Soil Type and Suitability for Construction.........................................................
11
4.0. Historical, Archeological or Paleontological Resources ................................
12
4.H. Wetlands.......................................................................................................13
4.1. Unique, Endangered, Fragile or Limited Environmental Resources .................
13
4.J. Public Water Supplies......................................................................................
14
5. Potential Routes.....................................................................................................
18
5.A. Gravity Interceptor Piping.............................................................................
19
5.13. Pump Stations...............................................................................................
21
5.C. Forcemains...................................................................................................
21
5.D. Extensions and Replacements for Existing Pump Stations ...........................
22
5.E. Downstream Gravity Piping..........................................................................
22
6. Population Projections...........................................................................................
34
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6.A_
Theoretical Build -Out Population..................................................................
34
6.B.
20-Year Planning Period Population.............................................................
35
7. Estimation
of Wastewater Flows............................................................................
38
7.A.
Flow per Equivalent Residential Unit (ERU).................................................
38
7.D.
Peaking Factor..............................................................................................
38
7.C.
Flows............................................................................................................
38
7.C.1.
Pump Station Flows...............................................................................
38
7.C.2.
Gravity Collection Main Flows................................................................
39
7.D.
Sizing............................................................................................................
39
7.D.1,
Pump Station Sizing...............................................................................
40
7.D.2.
Gravity Collection Main Sizing................................................................
41
8. Evaluation
of Alternatives.......................................................................................
43
B.A.
Matrix Criteria................................................................................................
43
B.B.
Criteria Weighting Value...............................................................................
46
8.C.
Matrix Evaluation of Segment Alternatives...................................................
47
9. Downstream Conveyance Piping...........................................................................
51
10. Conclusions and Recommendations...................................................................
52
1Q.A_
Recommendation for Gravity Interceptor Piping ...........................................
52
1 Q.B_
Recommendation for Pump Stations............................................................
52
1 Q.C.
Recommendation for Forcemains.................................................................
52
1 Q.D.
Extensions and Replacements for Existing Pump Stations ...........................
53
1Q.D.1.
Pump Station # 33 Forcemain................................................................
54
10.E_
Funding Recommendation............................................................................54
10.F.
Next Steps....................................................................................................
54
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Tables
Table 1 -
Zoning Densities............................................................................................
34
Table 2 -
20-Year Population Projections — Entire City .................................................
35
Table 3 -
20-Year Population Projections — WSI Sewer Service Area ..........................
35
Table 4 -
Full Build -Out: Pump Station Flows...............................................................
39
Table 5 -
Full Build -Out: Gravity Collection Main Flows ...............................................
39
Table 6 -
Pump Station Preliminary Design: 20-Year Period ........................................
40
Table 7 -
Pipe Friction Factors & Slopes per DEQ-2.....................................................
41
Table 8 -
Preliminary Design Parameters for Gravity Pipe ............................................
41
Table 9 -
Matrix Criteria: Access..................................................................................
43
Table 10
- Matrix Criteria: Depth..................................................................................
44
Table 11
- Matrix Criteria: Pump Station Abandonment ...............................................
44
Table 12
- Matrix Criteria: Public Disturbance/Interruption...........................................
45
Table 13
- Matrix Criteria: Project Costs.......................................................................
45
Table 14
- Matrix Criteria: Available Right -of -Way .......................................................
46
Table 15
- Matrix Criteria: Weighting Values................................................................
47
Table 16
- Matrix Evaluation: Segments 2-1 and 2-2...................................................
48
Table 17
- Matrix Evaluation: Segments 4-1 and 4-2...................................................
49
Table 18
- Matrix Evaluation: Segments 6-1 and 6-2...................................................
50
Table 19
- Downstream Piping Capacity.......................................................................
51
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Figures
Figure 1 -
Existing Sewer System...................................................................................
6
Figure 2 -
Sewer Service Area........................................................................................
9
Figure 3 -
Special Flood Hazard Areas.........................................................................
15
Figure4 -
Geology Map.................................................................................................
16
Figure 5 -
Surface Water and Wetlands........................................................................
17
Figure 6 -
Overview - Sheet Index.................................................................................
23
Figure 7 -
WWTP to Forcemain.....................................................................................
24
Figure 8 -
Forcemain to Pump Station...........................................................................
25
Figure 9 -
Segment 1 - Pump Station to Bypass...........................................................
26
Figure 10
- Segment 2 - Bypass to Two Mile Drive .......................................................
27
Figure 11
- Segment 3 - Two Mile Drive to Lot 48.........................................................
28
Figure 12
- Segment 4 - Lot 48 to Three Mile Drive ......................................................
29
Figure 13
- Segment 5 - Three Mile Drive to Parkland ..................................................
30
Figure 14
- Segment 6 - Parkland to Parkridge Drive ....................................................
31
Figure 15
- Segment 7 - Parkridge Drive to W Reserve Drive .......................................
32
Figure 16
- W Reserve Drive to Pump Station #36.......................................................
33
Figure17
- Future Zoning..............................................................................................
36
Figure 18
- Estimated Number of Residential Units ......................................................
37
Figure 19
- Recommended Project...............................................................................
56
Appendices
Appendix A — Cost Estimates: Full Build -Out & Alternative Segments
Appendix B — Cost Estimates: Recommended Project
Appendix C — Preliminary Profile Drawings
(Attached Separately)
Robert Peccia & Associates iv
West Side Interceptor
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Executive Summary
In 2014, the City of Kalispell undertook a review of the 2008 Facility Plan Update with a
focus on the West Side Interceptor. The work for this project began in June of 2014.
The West Side Interceptor (WSI) Project is being initiated by the City of Kalispell to
address limited wastewater capacity in Trunk Line A and to provide for future growth
and development west and north of the City.
This executive summary briefly describes the chapter contents, conclusions and
recommendations within this document. The structure of this Executive Summary also
depicts the chronological progress and steps completed thus far as part of this project.
Evaluation of Existing Facilities
The capacity of existing sanitary sewer Trunk Line A was evaluated using existing city
data (lift station and flow records), as -built drawings of the existing Trunk Line A, and
engineering documents from past projects. The capacity of this existing main is based
on the number of Equivalent Residential Units (ERUs) currently contributing to this line
along with the size the slope of this existing piping. The capacity deficit which precludes
large scale development in the northwest part of Kalispell which would contribute
additional sewage to Trunk Line A has been well documented. This capacity deficit was
again re -confirmed. It was determined that Trunk Line A has only 151 ERUs of
remaining available capacity. It was also determined that 827 existing ERUs could be
transferred from the existing Trunk Line A to a new West Side Interceptor. Sewer
modeling was also performed to both estimate the sewage contributions to this Trunk
Line A from the various contribution subdivisions and lift stations as well as to evaluate
the flows that could be transferred from existing Trunk Line A to a new West Side
Interceptor.
Sewer Service Area
A sewer service area was developed for the WSI based on the 2011 Annexation Policy
established by the City of Kalispell and the topographical area that could flow to this
proposed interceptor. The area is essentially bound by the City of Kalispell's 2011
Annexation Boundary on the south, west and north and is bound on the east by the
Kalispell Bypass (south of Reserve Drive) and Whitefish Stage Road (north of Reserve
Drive).
The sewer service area encompasses roughly 5,000 acres of land in the north and west
area of the Annexation Boundary and some of which is currently located within the City
of Kalispell.
Environmental Evaluation of the WSI Service Area
The Service Area for the proposed WSI was evaluated to identify potential physical
limitations and environmental resources that have potential for impacting the location
and alignments for the WSI.
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Potential Routes
Several potential routes for the WSI were developed for comparison with a goal to
maximize the benefit to the City and minimize the city's annual equivalent cost. The
potential routes include alternative segments that were further evaluated to determine
which is preferred. A matrix was developed with input from City staff to quantify
Population Projection
Population projections were completed using City of Kalispell planning documents and
guidelines. Current and future zoning types were identified for the properties within the
WSI service area. The development density standards were used based on the zoning
type to determine the population for the 20 year planning period and to evaluate the
theoretical full build -out of the area. The WSI sewer service has a theoretical full build -
out potential of 17,678 ERUs. An annual growth rate of 1.50% was used to determine
the rate of change in number of ERU's within the WSI Service Area. It is also assumed
that all existing ERUs that could be transferred from existing Line A would be
transferred during the initial construction of the project. By the year 2035 (20 year
planning period), 2,316 ERUs are estimated within the WSI sewer service area.
Estimation of Wastewater Flows and Proposed Project Improvements
The planned infrastructure for the WSI project was sized based on the ability of main
line piping to ultimately convey the theoretical full build -out flows of the service area.
These improvements were also sized to provide service for the 827 ERUs to be
connected at the time of start-up and serve the city through the 20 year planning period.
Evaluation of Alternatives
After potential routes were identified, alternative routes were evaluated. Alternative
routes were measured based on a matrix that was developed to weight city priorities.
The intent of this matrix is to provide an analytical method for selecting preferred routes.
Each alternate route was assigned points based on the matrix. The alternate segment
with the most points constitutes the preferred route.
Downstream Conveyance Piping
The piping downstream of the WSI tie in location was reviewed to evaluate its ability to
accept the flows from the WSI service area. One segment of the existing 36-inch main
pipe downstream will become surcharged within the 20-year planning period. This pipe
is located just upstream of the WWTP and does not have adequate capacity due to the
flat slope of the pipe. It is recommended that the City continue to monitor this segment
of pipe and routinely track available capacity.
Conclusions and Recommendations
Existing Trunk Line A is nearing capacity. This lack of sewer capacity could inhibit or
prevent development within the annexation boundary established by the City of
Kalispell. The recommended WSI project would provide this needed sewer capacity
and alleviate the overloading within Trunk Line A. This proposed project includes
constructing a new gravity interceptor, constructing a new sewage pump station (South
Meridian Lift Station), installing new force mains, and extending existing gravity
Robert Peccia & Associates 2
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collection mains and forcemains to re-route wastewater from existing Trunk Line A to
the WSI.
Gravity interceptor piping is recommended to convey the theoretical full build -out flows
of the service area. The recommended alignment is based on serving the 2011
Annexation Area adopted by the City of Kalispell. The project is recommended to
include new 36-inch piping from the South Meridian Pump Station on Meridian Road to
Two Mile Drive (see Figure 19 on Page 56) and 30-inch piping from Two Mile Drive
northerly to Quarter Horse Estates. The northernmost segment of this interceptor
(North of Quarter Horse Estates) should not commence until needed as dictated by
future development.
A new sewage pump station should be located on Meridian Road (referred to as the
South Meridian Lift Station). The basic structure and wet well for this lift station was
sized for 40 years for constructability advantages and to minimize the City's long term
capital costs.
Three parallel force mains are recommended between the South Meridian Lift Station
and existing 30-inch gravity main near the intersection of 10th Street West and 5th
Avenue West which would serve as the tie in location. These three parallel force mains
((2) 12" and one (1) 20") are recommended to minimize construction costs and allow
utilization of the City's easement. These force mains would be utilized in steps as
development occurs and flows increase. In combination, these force mains would
accommodate the theoretical build out of the WSI Service Area.
The recommended project from the force main connection near the intersection of loth
Street West and 5th Avenue West, construction of gravity interceptor piping to Quarter
Horse Estates, including the South Meridian Lift Station and connecting gravity and
force main piping is estimated to cost $10.99 million.
Robert Peccia & Associates 3
West Side Interceptor
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1. Evaluation of Existing Facilities
City of Kalispell residents are served by a sanitary sewer system collection system and
wastewater treatment plant (WWTP). The sewer collection system is comprised of
gravity collection mains, gravity trunk collector mains, sanitary sewer lift stations, and
forcemains. The existing WWTP was last improved in 2009 and has a capacity of 5.4
MGD. Figure 1 shows the existing sewer system.
Demands on these facilities are increasing. Potential development will increase the
quantity of wastewater and reduce the available capacity of the collection and treatment
systems.
1.A. Existing Gravity Collection Mains
The sewer collection system serving Kalispell consists of a 106-mile long network of
reinforced concrete (RC), vitrified clay (VC), cast iron (CI), asbestos cement (AC), and
PVC piping ranging in diameter from 6-inches to 36- inches. Forty-one sewage pumping
stations are located within the perimeter of the City. The original collection system was
installed in 1911. Additions and improvements have taken place as required by
development.
1.13. Existing Pumping Stations
Within the existing collection system, the City presently operates and maintains 41 raw
sewage pumping stations. Seven of the pump stations are within the WSI sewer
service area, which is discussed in Part 2. Descriptions of these seven pump stations
are listed below.
Pumping Station No. 19 is a Gorman Rupp above -grade self -priming packaged
system with two 7.5 horsepower self -priming pumps and a 40 KW natural gas
fueled emergency generator. It is located north of Three Mile Drive on Blue
Crest Drive (the entrance to Blue Heron Subdivision).
Pumping Station No. 24 is a Gorman Rupp above -grade self -priming packaged
system with two 7.5 horsepower self -priming pumps and a 30 KW natural gas
fueled emergency generator. It is located on the east side of Empire Loop at 179
Empire Loop.
Pumping Station No. 28 is a Flygt submersible grinder arrangement with two 3.8
horsepower grinder pumps and a 20 KW natural gas fueled emergency
generator. It is located at 134 Auric Drive, north of Three Mile Drive and west of
Stillwater Road.
Pumping Station No. 29 consists of one (1) Vaughn chopper 50 horsepower
pump (1) Hydromatic solids handling 40 horsepower submersible pump and a
100 KW natural gas fueled emergency generator. It is located at 135 Triple Creek
Drive, southwest of the intersection of Three Mile Drive and Stillwater Road.
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West Side Interceptor
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Pumping Station No. 33 is a Gorman Rupp above -grade self -priming packaged
system with two 10 horsepower self -priming pumps and a 50 KW natural gas
fueled emergency generator. It is located on the east side of Lupine Drive at 351
Lupine Drive, south of Foys Lake Road and west of Valley View Drive.
Pumping Station No. 36 is a Gorman Rupp packages system with two 34
horsepower pumps and a 130 KW emergency generator. It is located at 2686
Highway 93 North, north of the Stillwater River and west of Highway 93 South.
Pumping Station No. 38 is a duplex Hydromatic system with two 3 horsepower
pumps and a 25 KW emergency generator. It is located at 180 Westland Drive,
on the south side, at the end of the road.
1.C. Existing Wastewater Treatment Facility
The City of Kalispell owns and maintains an activated sludge mechanical wastewater
treatment plant with the capacity of 5.4 MGD. This facility was last upgraded in 2009.
1.13. Previous Wastewater Planning Documents
The need for a West Side Interceptor Project was first identified in the 2008 Wastewater
Facility Plan. This document provides RPA and City staff with a guideline and starting
criteria used in planning for installation of a sewer interceptor in the northwest part of
the Kalispell Annexation Boundary. Concepts discussed in the 2008 Wastewater
Facility Plan were evaluated and further developed as described in this report.
As part of this project and leading up to completion of this report, several Technical
Memorandums were prepared and submitted to the City of Kalispell for review and
discussion and serve to support this document.
Robert Peccia & Associates 5
Purn Station #36
W Resery D9r
Four Mile Dr
Pump Station #24
Pump Station #28
ation �#1 9
Three Mile D
- Q+�+;- 41PI
Treatment
Plant
West Side Interceptor
Preferred Route Assessment
2. Need for West Side Interceptor
The City of Kalispell allocates sewer capacity for development through the Municipal
Facilities Exclusion (MFE), which is required by the Montana Department of
Environmental Quality. The City must certify that it has adequate sewer capacity to
approve any new development. Additionally, the City must reserve capacities in sewer
mains where there have been allocations approved.
Sewer monitoring and modeling indicate there is insufficient unallocated capacity
available in Trunk Line A to serve the development potential within its current service
area. Trunk Line A is on the western side of Kalispell, and serves the west and
northwest areas of Kalispell.
In 2013-14 the City completed a minor improvement to increase the capacity in Trunk
Line A. Three pump stations (19, 28, and 29) were synchronized on Three Mile Drive to
reduce the peak flow. Only one of these three pump stations currently can operate at
one time to prevent hydraulic overloading in Trunk Line A. Modeling shows this
synchronization project reduces the peak flows in Trunk Line A and "freed up" an
additional 145 ERUs of capacity. Even with this improvement, there is currently only
151 unallocated ERUs available in Trunk Line A.
Based on the growth model of 1.5% per year (see Section 6 of this document) an
additional 1,489 ERU's are anticipated west of Kalispell in the next 20-years. Trunk
Line A does not have the available capacity to accept this number of ERUs. This
capacity deficit confirms the need for a West Side Interceptor Project.
Robert Peccia & Associates 7
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3. Sewer Service Area
The first step of the West Side Interceptor Project is to determine the area to that can
most reasonably be served by gravity within the annexation boundary established by
the City. The sewer service area of the WSI includes lands established within the City
of Kalispell's 2011 Annexation Boundary Kalispell and precludes other parcels. This
boundary establishes southern, western and northern limits of annexation, and thus the
extents of the sewer service area west of Kalispell. The topography of this area includes
a natural drainage way to be utilized for the alignment of the WSI.
To determine the eastern limits of the WSI sewer service area, the topography and
existing collection system was reviewed to determine areas that could potentially
contribute to a new WSI. The goal of this review was to determine which developments
could be re -directed to a future interceptor, without the addition of additional pump
stations. This determination is important both in providing additional capacity in Trunk
Line A and also to provide adequate flows in the proposed WSI interceptor at the time of
start-up to prevent undue maintenance.
The two areas identified include the land east of the Kalispell Bypass (south of 2 Mile
Drive and US Highway 2) and Empire Estates Phase 5 (which is east of the bypass).
These two (2) areas are included in the sewer service area because, with relatively
minor extensions, the flows can be diverted to the WSI. Additionally, the area north of
the Stillwater River and north of Reserve Drive (east of US Highway 93) will flow to
existing pump station #36.
The final sewer service area was developed using an iterative process. Preliminary
routes were evaluated for the WSI to determine what areas could be served by the
planned WSI. The final sewer service area is based upon the routes identified in this
report. The area is essentially bound by the City of Kalispell 2011 Annexation Boundary
on the south, west and north and is bound on the east by the Kalispell Bypass (south of
Reserve Drive) and Whitefish Stage Road (north of Reserve Drive).
The sewer service area encompasses roughly 5,000 acres of land west and north of the
City of Kalispell including some properties within the City limits. Figure 2 shows the
sewer service area determined for this project.
Robert Peccia & Associates 8
Three Mile
pmrr", "Mal=-
iL
W Reserve Dr
0
--\" V --)-
ON
6
West Side Interceptor
Preferred Route Assessment
4. Sewer Service Area Evaluation
Known environmental factors within the identified WSI service area were reviewed to
assist in determining beneficial alignments and to avoid any environmentally sensitive
areas. Below is a list of items that were evaluated.
4.A. Topography
Utilizing 2009 Flathead Basin LiDAR data, the project team was able to create a
topographic map of the sewer service area. Reviewing the topography map, the project
team identified natural drainage swales, which are the most favorable location for
gravity sewer interceptors.
4.13. Existing Right -of -Ways
Utilizing data from Flathead County GIS, the project team was able to identify existing
public right-of-ways. This information was evaluated to minimize right-of-way
acquisitions.
4.C. Availability of Future Expansion
Areas with a high potential for development within the WSI service area were identified.
Most of the future expansion and development is anticipated west of the Kalispell
Bypass.
4.0. Flood Considerations
Flood plain maps and areas with propensity for flooding were identified. Routing for the
WSI in these areas was avoided and minimized. Construction within the floodplain will
require Floodplain Development Permits from both the City of Kalispell's and Flathead
County's Floodplain Administrators.
Floodplains are the flat or nearly flat land adjacent to a stream or river that experiences
occasional or periodic flooding. The floodplain includes the "floodway" which consists of
the stream channel and adjacent areas that carry flood flows and the "flood fringe" is the
areas covered by the flood. Floodplain mapping typically identifies the areas covered
by the 100-year flood.
The Federal Emergency Management Agency (FEMA) has developed maps showing
flood zones according to varying levels of risk as part of the National Flood Insurance
Program. The agency's Flood Insurance Rate Maps (FIRMs) or Flood Hazard
Boundary Maps are used to help assess the risk from flooding by floodplains and flood
hazard areas.
Digital FIRMs (DFIRMs) are available for lands in Flathead County and the City of
Kalispell showing 100-year floodplains and other flood hazard areas. The DFIRMs
show floodplains are present along the Stillwater and Whitefish Rivers north of Kalispell.
Preliminary DFIRM panel 30029C1805J (dated 04/22/2014) shows floodplains in the
northwestern portion of the City and adjoining unincorporated lands. The FEMA
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West Side Interceptor
Preferred Route Assessment
mapping shows regulated floodplains along Ashley Creek and a tributary to Ashley
Creek, along West Spring Creek and a tributary, and an unnamed tributary to Bowser
Creek in the project area. A floodplain also exists along the Stillwater River to the east
of the project area. Areas of shallow flooding (less than 1 foot) also exist in the area.
Figure 3 shows the special flood hazard areas within the sewer service area.
4.E. Geologic Information
The Flathead Valley, an intermountain basin covering about 600 square miles, is
surrounded by mountains formed by Precambrian metamorphosed sedimentary rocks of
the Belt Supergroup. This same bedrock material underlies the Flathead Valley at
depths estimated to be as much as 4,000 feet. The topography of the Kalispell area
was formed during the ice ages when the enormous glacier that filled the Rocky
Mountain Trench in British Columbia pushed southward through the Flathead Valley
and into the Mission Valley. Following the ice withdrawal, the valley was inundated by
an ancestral Flathead Lake. The uppermost 600 to 1,000 feet of the valley fill material
consists of fluvioglacial alluvium and outwash, which is capped by till and
glaciolacustrine deposits.
Mapping of surficial geology (the area under the soil and above the bedrock) from the
Montana Bureau of Mines and Geology shows the primary map units in the Kalispell
area are alluvial deposits (Qal) and glacial and fluvioglacial sediments (Qg). Figure 4
shows a portion of the geology map for the area.
Geology maps show numerous northwest to southeast trending faults occur along the
east and west margins of the Flathead Valley. A belt of seismicity known as the
Intermountain Seismic Belt extends through western Montana, from the Flathead Lake
region in the northwest corner of the state to the Yellowstone National Park area. The
Flathead Lake Region has experienced at least two earthquakes of magnitude 5.5 or
higher since 1900, most recently in 1945.
In general, Kalispell is within a moderately seismic area and earthquakes will be felt in
nearby areas. The potential for a large earthquake that will damage structures and
roads is moderate. Beyond this general seismic risk, there are no geologic conditions
posing severe limitations to the construction of the WSI.
4.F. Soil Type and Suitability for Construction
The geologic parent material for the soils in the Kalispell area include bedrock materials
from surrounding mountains and sediments deposited by glacial and water movement.
Soils in the Kalispell area were formed in surficial glacial deposits, followed by volcanic
ash deposits from the Cascade Mountain Range. Erosive action of the rivers and
streams further modified valley bottom soils to form alluvial deposits.
Localized areas with soil conditions that may pose limitations to development (like
frequently flooded areas, areas with high groundwater, or soil conditions that pose
difficulties for shallow excavations) exist throughout the Kalispell area. However, soil
areas with such limitations can often be overcome through the application of
engineering techniques.
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West Side Interceptor
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The depth to groundwater varies with seasons and precipitation levels. Many areas
experience seasonally high groundwater levels, typically in the spring, which limits land
use. These areas are commonly located within or near floodplains, alluvial deposits and
wetland areas. Mapping included with the City of Kalispell's Growth Policy shows the
depth to the water table is more than 15 feet over much of the area where the WSI may
be built. However, isolated areas of shallow groundwater (less than 5 feet) exist in
areas along Ashley Creek east of the US Highway 93 Bypass and south of US Highway
2 and north of US Highway 2 and west of North Meridian Road. Groundwater may be
encountered at depths of 10-15 feet along Spring Creek north of Three Mile Drive and
east of West Spring Creek Road.
Map 7.3 contained within the City of Kalispell's Growth Policy shows the depth to water
table in the area where the WSI would be installed.
4.G. Historical, Archeological or Paleontological Resources
Identifying potential historical, archeological or paleontological resources within the area
is important to determine if any sensitive resource areas are present. The Montana
Historical Society State Historic Preservation Office (SHPO) was contacted in July 2014
for file information about previously recorded historic sites and cultural resource surveys
in the project area. File information was requested for the following search area which
encompasses potential routing options for the WSI:
Township 29 North, Range 22 West, Sections 34, 35, and 36
Township 28 North, Range 22 West, Sections 1, 2, 3, 10, 11, 12, 13, and 14
Township 28 North, Range 21 West, Section 18
According to SHPO's records, more than 125 previously recorded sites occur within the
designated search locale. The majority (some 94 sites) are located within Section 18 of
Township 28 North, Range 21 West which encompasses a large area of Kalispell's
historic downtown, its railroad area, and a residential neighborhood west of the
downtown. Most previously recorded historic sites within the search area are historic
buildings (residences, farmsteads, and commercial structures).
SHPO's position is that any structure over fifty years of age is considered historic and is
potentially eligible for listing on the National Register of Historic Places (NRHP). If any
structures are to be altered and are over fifty years old, SHPO recommends that they be
recorded and a determination of their eligibility be made.
In areas where the WSI will be located within the disturbed right-of-ways for roads, there
is a low likelihood cultural properties will be impacted. However, in areas where there
has been no previous ground disturbance there may be a potential to impact sites.
Based on this potential, SHPO asked to be contacted again when the route for the WSI
has been determined so that the agency can better identify which sites may potentially
be impacted by this project.
Robert Peccia & Associates 12
West Side Interceptor
Preferred Route Assessment
4.H. Wetlands
Identifying wetlands within the area is necessary, since construction in and through
wetlands can be very costly and time consuming and should be avoided as much as
possible.
National Wetlands Inventory (NWI) mapping, available through the U.S. Fish and
Wildlife Service (USFWS) website, was reviewed to identify riparian areas and wetlands
in the area under consideration for potential routing of the WSI. These maps show the
presence of riparian forested shrub areas, freshwater emergent wetlands, and
freshwater forested -shrub wetlands along Ashley Creek, Spring Creek, and Kids Creek
(a tributary to Spring Creek). Due to their west -east trending locations, some or all of
these riparian and wetland areas could be encountered along routes for the WSI.
The USDA Natural Resources and Conservation Service (NRCS) has mapped soils in
Flathead County and has information available about the areas of hydric soils or soils
with a percentage of hydric characteristics. Hydric soils, one of the primary indicators of
wetlands, are those that are saturated, flooded, or ponded long enough during the
growing season to develop anaerobic conditions that favor the growth of hydrophytic
vegetation (i.e., plants adapted to saturated soils, such as cattails). Hydric soils may
also be within floodplains and riparian habitats. Mapping included in the City of
Kalispell's Growth Policy shows that hydric soils generally correspond closely to the
location of wetlands and floodplain areas. Figure 5 shows locations of surface water
and wetlands in the area where the WSI would be installed.
A Section 404 Permit from the COE will be required for activities affecting jurisdictional
"Waters of the United States" which include wetlands. NWI mapping provides an
indication of where riparian and wetland sites may exist, but the mapping is not
sufficiently detailed for Section 404 permitting purposes. Therefore, a wetland
delineation for the proposed route of the WSI will be needed to help identify sites that
may be impacted. The delineation will need to be consistent with guidance and
methods outlined in the U.S. Army Corps of Engineers (COE) 1987 Wetlands
Delineation Manual and the Regional Supplement to the Corps of Engineers Wetland
Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0).
4.1. Unique, Endangered, Fragile or Limited Environmental
Resources
Identifying unique, endangered, fragile or limited environmental resources within the
area is important to determine if any resource areas are identified. An online review of
species listed or proposed for listing by the U.S. Fish and Wildlife Service (USFWS)
under the Endangered Species Act, and wildlife and plant species of concern by the
Montana Natural Heritage Program (MNHP), was conducted. Seven USFWS-listed
species occur in Flathead County including four threatened species, one proposed for
listing species, and two candidate species. The species are:
• Bull trout (Salvelinus confluentus) — Listed Threatened, Critical Habitat
Designated
Robert Peccia & Associates 13
West Side Interceptor
Preferred Route Assessment
• Grizzly bear (Ursos arctos horribilis) — Listed Threatened
• Spalding's Campion (Silene spaldingii) - Listed Threatened
• Canada lynx (Lynx Canadensis) — Listed Threatened, Critical Habitat Designated
• Meltwater Lednian Stonefly (Lednia tumana) — Candidate Species for Listing
• Wolverine (Gulo gulo luscus) — Proposed Species for Listing
• Whitebark Pine (Pinus albicaulis) — Candidate Species for Listing
In general, the Kalispell area lacks suitable habitat for these species and they are
unlikely to occur in the area affected by the WSI. The USFWS has designated the
Flathead River as critical habitat for bull trout; however, no other streams or tributaries
in the immediate Kalispell area have been designated as critical habitat. Because the
limited work for the WSI would not occur in surface waters occupied by the species,
there would be no impact to bull trout or its critical habitat. Grizzly bears are unlikely to
occur within the immediate Kalispell area, although an occasional grizzly bear may use
the coniferous and/or riparian areas along the Flathead River as travel corridors.
Animal species of concern are native Montana animals that are considered to be "at
risk" due to declining population trends, threats to their habitats, and/or restricted
distribution. The MNHP online search identified the following wildlife species of concern
as occurring within the townships and ranges where this project occurs: Wolverine,
Fisher, Great Blue Heron, American Bittern, Black Tern, Northern Leopard Frog, Arctic
Grayling, Lewis's Woodpecker, Horned Grebe, Veery, Westslope Cutthroat Trout, Bull
Trout, Lake Trout, and Pygmy Whitefish. Habitat for these species may or may not exist
in the immediate project area and occurrences may not have been recorded in the
sections of each township and range where project activities are likely to be
implemented.
Bald eagles would be expected to occasionally occur in the project area since it is
relatively close to the Stillwater River, Ashley Creek, and other surface waters. Bald
eagles were originally listed by the USFWS as a threatened species in 1973; however,
the species was officially delisted in 2007. Bald eagles remain protected under both the
federal Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act.
Two plant species of concern in Montana— Sweetflag and Pygmy Water -lily —were
identified in the townships and ranges where this project occurs. As with animal
species of concern, habitat and/or occurrences of these plant species may or may not
exist in the project area.
4.J. Public Water Supplies
Regulations require that sewer lines be 100-feet or more away from Public Water
Supply (PWS) wells. One PWS (PWS#MT0003328) has been identified in close
proximity, possibly less than 100-feet, from the WSI. This PWS well is located near the
intersection of Two Mile Drive and West View Drive. This PWS well (GWIC#82783) has
a total depth of 180 feet with about 30 feet of clay and the water bearing layer starting
as shallow as 59 feet. If this well is less than 100-feet away from the WSI, then a
deviation will be required from MDEQ.
Robert Peccia & Associates 14
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Preferred Route Assessment
5. Potential Routes
To help alleviate the capacity shortfall in Trunk Line A, it is beneficial to locate the WSI
where existing flows that can be reasonably redirected from Trunk Line A to the WSI.
These redirected flows should not create the need for additional pumping stations
(within topographic boundaries) or where existing pumping stations can be redirected
through modest force main piping realignments. A new WSI interceptor location also
needs to be located to accommodate areas with a high potential for future development
while also maximizing gravity connections for all areas within the topographic boundary
of the identified service area.
The 2008 Facility Plan Update identified a potential route for the WSI. This route was
utilized as a starting point for identifying potential routes and is shown in this report as
Segments 1 and 2-2.. Additional information collected as part of this report and as
provided by City Staff was reviewed. Additional potential routes for WSI were
developed.
One potential route located the WSI within the Kalispell Bypass right-of-way from
Highway 2 north to Parkridge Drive. This route was quickly removed from serious
consideration. The existing topography, coupled with the proposed construction for the
Kalispell Bypass, would require excessively deep excavations. 665 feet of the route
would be more than 40 feet deep, 1,300 feet of the route would be more than 30 feet
deep, and the remaining 1,535 feet of the route would be more than 20 feet deep. Due
to excess depths, this route was determined to be neither feasible, constructible, nor
maintainable. A route that follows the Kalispell Bypass within its right-of-way will not be
further evaluated.
A major goal of the project is to eliminate as many existing pump stations as possible.
Fortunately, most pump stations are installed near natural drainage ways, which is also
the preferred location for gravity sewer interceptors.
This project requires coordination with Montana Department of Transportation (MDT)
and the planned Kalispell Bypass. The service area for the WSI interceptor includes
properties on the east and west sides of this proposed roadway. This coordination
effort is underway and much information has been collected regarding the proposed
Bypass. Details regarding scheduling of the Bypass and aspects that most affect
construction of the WSI have been gained. Some of aspects include:
1. Schedule: The MDT has required that any portion of the WSI that will be
constructed within the Kalispell Bypass be completed and submitted for a Final
Plan Review no later than November 30t", 2014.
2. Stone Columns: The MDT is planning to construct stone columns near the
intersection of 2 Mile Drive and the Kalispell Bypass. These stone columns
consist of 36" diameter stone columns being installed on a 70" center -to -center
spacing. The area of stone columns is both on the east and west side of the
Bypass at 2 Mile Drive and each area is approximately 112' wide in the north -
south direction and up to 115' long in the east -west direction. The stone columns
Robert Peccia & Associates 18
West Side Interceptor
Preferred Route Assessment
average 12' deep. Due to the depth and spacing of these stone columns,
installation of any piping will be impractical.
3. Box Culvert/Wetland Area North of Two Mile Drive: The MDT is planning to
install a large box culvert in the fall of 2014 as part of the Three Mile Drive
Project. This box culvert is planned to be installed early to allow for settlement
within the area due to soft soils.
WSI route alternatives were developed on paper and field reviewed. Alternative
alignments were accepted, modified, or eliminated based on an iterative process that
included numerous field reviews and the preliminary design of each potential route.
Only a few routes met the project criteria and were retained. Those routes are
discussed in Part 5.
The WSI Project consists of five (5) distinct components: 1) Gravity Interceptor Piping;
2) Pump Stations; 3) Forcemains; 4) Extensions and Replacements for Existing Lift
Stations; and 5) Downstream Gravity Piping. Figure 6 shows an overview of the
components and individual segments. Below are discussions on each of these
components and the potential routes, if any, for each.
S.A. Gravity Interceptor Piping
The WSI gravity collection main will originate at the South Meridian Pump Station and
extend northerly to the intersection of West Reserve Drive and Stillwater Road.
Considerable time was invested in reviewing maps and performing field reviews to
determine viable potential routes.
The WSI was divided into seven (7) segments. Some of these segments include
alternatives which were further evaluated to determine the recommended alternative for
each segment. Each segment is discussed below, with the preferred alternative listed
fi rst.
Segment 1: Pump Station to Bypass:
This segment begins at the South Meridian Pump Station and generally extends
northerly to the Kalispell Bypass where it intersects the Rails -to -Trails path. This
segment will require easements from one private property owner and the BNSF.
The remaining portions of the alignment within this segment follow existing
easements. Figure 9 shows this segment.
Segment 2: Bypass to Two Mile Drive
This segment begins at the Rails -to -Trails path and extends northwest to Two
Mile Drive. It has two alternatives. Figure 10 shows these segments.
Segment 2-1: This segment extends across the Bypass, paralleling the
Rails -to -Trails path and continues westerly until it intersects with a platted
roadway and utility easement. From here, it extends northerly to US
Highway 2, and turns west along the north side of US Highway 2. The line
continues westerly and turns northwest of Hathaway Lane. From here,
the segment extends north to Two Mile Drive. This segment will require
permits from MDT and two (2) easements from private property owners.
Robert Peccia & Associates 19
West Side Interceptor
Preferred Route Assessment
Segment 2-2: This segment is included as identified in the 2008
Wastewater Facility Plan. This route continues northerly along the east
side of the Bypass, within Fenn Way and Appleway Drive to US Highway
2. The segment crosses US Highway 2 and continues northerly within
Corporate Drive to a point and then extends west to the Bypass. From
here, it extends north and west until it intersects Two Mile Drive. Once at
Two Mile Drive, the segment extends west, within Two Mile Drive, across
the Bypass and to the same termination point as Segment 2-1. This
segment will require permits from MDT and one (1) easement from a
private property owner.
Segment 3: Two Mile Drive to Lot 48
This segment is planned to be in the same location as identified in the 2008
Wastewater Facility Plan. It starts on Two Mile Drive, just east of West View
Drive, and continues west to West View Drive. At this point, it turns and
continues northerly within West View Drive to the southern boundary of Lot 48
within the Aspen Creek Subdivision. This route follows the existing platted
roadway and utility easement that is West View Drive. Figure 11 shows this
segment.
Segment 4: Lot 48 to Three Mile Drive
This segment starts at Lot 48 and extends northerly to Three Mile Drive. It has
two alternatives. Figure 12 shows these segments.
Segment 4-1: This segment extends across Lot 48 to Triple Creek Drive
and continues northerly within Triple Creek Drive to Pump Station #29.
From here, it extends northerly to Three Mile Drive through the Aspen
Creek Subdivision Home Owners Association (HOA) Park area. This
segment will require acquiring Lot 48 and one (1) easement from the
Aspen Creek HOA.
Segment 2-2: This segment is planned to be in the same location as
identified in the 2008 Wastewater Facility Plan. It continues westerly
within West View Drive to Konley Drive and then extends north across
Aspen Creek Subdivision within a 10' wide utility easement to Triple Creek
Drive. From here, it extends westerly and northerly to Westland Drive and
Pump Station # 38. It then follows Westland Drive to Camp Crook Trail,
and then northerly within Camp Crook Trail to Three Mile Drive. Once at
Three Mile Drive, it extends easterly in Three Mile Drive to the same
termination point as Segment 4-1. This segment will require permits from
MDT and one (1) easement from a private property owner.
Segment 5: Three Mile Drive to Parkland
This segment starts at Three Mile Drive, just east of Triple Creek Drive, and
extends northerly through City Parkland to the northern extent of the parkland.
This segment does not require any easements, but does require a permit from
MDT for the crossing at Three Mile Drive. Figure 13 shows this segment.
Robert Peccia & Associates 20
West Side Interceptor
Preferred Route Assessment
Segment 6: Parkland to Parkridge Drive
This segment starts at the north end of Parkland and extends northerly to a point
approximately 1,100 feet west of the intersection of Stillwater Road and
Parkridge Drive. It has two alternatives. Figure 14 shows these segments.
Segment 6-1. This segment extends across Lots 4, 5, 12, 13 and 14 of
Quarter Horse Estates Subdivision. This segment follows the natural
drainage through this area. This segment will require five (5) easements
from private property owners.
Segment 6-2: This segment extends east across Lot 14 of Quarter Horse
Estates Subdivision to Stillwater Road. From here, it extends northerly
within Stillwater Road to the intersection of Stillwater Road and Parkridge
Drive. From here, it extends westerly to the same termination point as
Segment 6-1. This segment will require two (2) easements from private
property owners.
Segment 7: Parkridge Drive to West Reserve Drive
This segment starts at a point approximately 1,100 feet west of the intersection of
Stillwater Road and Parkridge Drive, and extends northerly to West Reserve
Drive. The portion of the segment up to Four Mile Drive follows the natural
drainage through this area. At Four Mile Drive, the segment extends north along
the mid -section line approximately one-half mile and then turns east along the
mid -section line to Stillwater Road. From here, the segment extends north within
Stillwater Road to West Reserve Drive. This segment will require four (4)
easements from private property owners. Figure 15 shows this segment.
5.B. Pump Stations
A pump station to convey wastewater collected by the WSI to downstream piping is
required. This lift station is referred to as the South Meridian Pump Station. The
location for this pump station was identified in the 2008 Wastewater Facility Plan. This
location, just east of the intersection of S. Meridian Road and 7t" Street West remains
the preferred location. Acquisition is required of parcel 1AF, Section 13, T. 28 N., R. 22
W. (address of 646 South Meridian Road). This location provides easy access to 3-
phase power and direct access from South Meridian Road.
The parcel is approximately 0.5 acres in size and is of adequate size to facilitate a large
pump station. The project team has reviewed and selected this site for the potential
pump station.
5.C. Forcemains
The forcemain for the WSI will connect the new South Meridian Pump Station to the
existing gravity collection system and ultimately to the Wastewater Treatment Plant.
The Public Works Department provided the project team with a recommended location
for the forcemain, which originates at the pump station and extends east and south
through southeast Kalispell to a connection point on the existing 30" line at 10t" Street
Robert Peccia & Associates 21
West Side Interceptor
Preferred Route Assessment
West and 5t" Avenue West. This recommended forcemain alignment minimizes
conflicts with existing utilities and minimizes the length of required piping. Figure 7 and
Figure 8 show the route for the forcemain.
5.D. Extensions and Replacements for Existing Pump Stations
Main extensions and realignments which redirect flow currently conveyed by existing
Trunk Line A to the WSI are recommended as part of this project. The recommended
improvements in this section "free up" capacity in existing Trunk Line A and allow future
ERU connections to this main. Additionally flows transferred create a base flow at the
time of start-up. A considerable base flow in the WSI at the time of start-up is desirable
to avoid septic conditions and minimize potential impacts on the wastewater treatment
facility. Recall that gravity interceptor piping is sized to convey flows anticipated at full
build out which could lead to settling and long detention times within the interceptor
without this base flow. Therefore it is a benefit to redirect as much existing flow as
possible rather than let flows increase as development occurs.
Lift Stations #19, #24, #28, and #29 are located within the service area of the WSI and
can be eliminated. Gravity main replacements and extensions are required to convey
existing flows to new connection points on the WSI. These corresponding new gravity
collection mains are:
• Extension from Pump Station #19
• Extension from Pump Station #24
• Extension from Pump Station #28
• Gravity Main replacements in Triple Creek Drive, Aspen Creek Drive and
Kara Drive to eliminate Pump Station #29
Additionally, there are (2) forcemains within the WSI sewer area that can be realigned to
redirect flow from existing Trunk Line A and connected to the WSI:
• The forcemain from Pump Station #33 should be extended and connected
to the forcemain from the South Meridian Pump Station.
• The forcemain from Pump Station #36 should be extended and redirected
to the northernmost segment of the gravity collection main for the WSI.
Figure 16 shows this route.
5.E. Downstream Gravity Piping
The existing gravity collection system from the WWTP to the north end of the City
Airport Property currently consists of a 36" diameter pipe. Modeling of this piping
indicate areas of limited capacity due to flat slopes. The pipe segment between MH1
and MH2 is where the bottleneck occurs. There are about 3,000 ERUs of remaining
available capacity currently in this main. This pipe segment should be continually
monitored and routinely checked for available capacity. It is likely that this pipe
segment will need to be upgraded as growth and development occur within the City.
This upgrade is likely needed sometime beyond the year 2035. Figure 7 shows this
future segment.
Robert Peccia & Associates 22
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Preferred Route Assessment
6. Population Projections
The main factor in determining the demand on the wastewater system is population
growth. The project team and Kalispell Planning and Public Works Departments met to
review the sewer service area and project what development density and growth trends
may be realized.
6.A. Theoretical Build -Out Population
Kalispell Planning Staff provided input into the future zoning of the properties within the
sewer service area. Figure 17 shows the likely future zoning for properties within the
sewer service area and outside current City limits.
Using this information the following estimated densities were applied to each zoning
district (See Table 1):
Table 1 - Zoning Densities
Zoning
Density ERUs/Acre
Golf Course
Used # of Platted Lots
Other
No Development — Gravel Pit
R-1
1
R-2
3
R-3
4
R-4
10
An estimate of the total potential ERUs based on the area available for development
was completed. The land within the sewer service area was divided into sub -areas
based on current or future zoning, and the net developable area for each was
calculated. Areas such as major rights -of -way, floodways and a 100-foot setback from
streams, ponds and floodways were excluded. Utilizing GIS software, the total potential
number of ERUs in each sub -area was calculated. Figure 18 shows the estimated
number of ERUs within the sewer service area.
In total, there is a theoretical build -out potential of 17,678 ERU's within the WSI sewer
service area.
This theoretical build -out potential will only be realized if all lands identified are
developed and built upon with the predicted zoning densities. This full build -out
potential was used only to size the gravity collection components of the WSI.
Gravity interceptor piping is based on this full build out condition to minimize future
capital costs and for constructability. Once connections are made to the interceptor and
substantial flow is achieved, upgrades become very expensive and cost prohibitive.
Upsizing this piping in the future would require all contributing flows to be re -directed or
bypassed by pump during construction.
Robert Peccia & Associates 34
West Side Interceptor
Preferred Route Assessment
Other components such as pump stations which include mechanical components with a
predictable service life are sized based on a 20-year planning period. Forcemains are
sized based on the velocity of the pumped wastewater and are sized to dovetail with the
pumps. In some cases, where there is a perceived benefit such as for the South
Meridian Forcemain, parallel forcemains are recommended (See Section 10b).
6.B. 20-Year Planning Period Population
Through meetings with the City of Kalispell Planning and Public Works staff, and in
guidance with City Planning Documents, a 1.5% annual growth rate in population for the
City of Kalispell for the 20-year planning period. Using these assumptions, population
growth for the 20-year planning period was computed (see Table 2):
Table 2 - 20-Year Population Projections — Entire City
Year
Planning Period
Population
ERU's
2015
Year 0
21,467
8,587
2035
Year 20
28,913
11,565
The City of Kalispell is expected to add 7,446 people or 2,978 ERUs (2.5 people/ERU)
over the next 20 years.
Through meetings with the City of Kalispell Planning and Public Works staff and review
of the area, it is estimated that one-half (1/2) of all growth will occur in the WSI sewer
service area (see Table 3):
Table 3 - 20-Year Population Projections — WSI Sewer Service Area
Year
Planning Period
Population
ERU's
2015
Year 0
2,068
827
2035
Year 20
5,791
2,316
Therefore the 20-year planning period criteria for the WSI include flows ranging from
827 ERUs up to 2,316 ERUs.
Robert Peccia & Associates 35
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West Side Interceptor
Preferred Route Assessment
7. Estimation of Wastewater Flows
In order to accurately estimate the wastewater flows for theoretical full build -out of the
WSI, the project team used a computer -generated hydraulic model. The City provided
the project team with an existing model of the City's sewer system.
The project team had to select a preferred route to build a network of pipes and
manholes within the existing model to reflect the probable theoretical full build -out
condition. This included building not only the preferred route, but other extensions to
collect sewer from within the sewer service area. The modeled preferred route and
extensions provide a more accurate estimation of peak hour flows.
Once the model was updated, the next step was to distribute the projected population
density throughout the model. The data shown in Figure 18 was utilized to load the
population projections into the model.
7.A. Flow per Equivalent Residential Unit (ERU)
The City of Kalispell Standards for Design and Construction requires contributing
wastewater flows be 265 gpd/ERU.
7.B. Peaking Factor
The peaking factor (the ratio of peak flow to average flow) is a constant value which is
multiplied by the design average flow to estimate peak hour flows. Sewer mains and
pump stations are sized to handle the peak flow condition. Equations for approximating
peaking factors can be used, but should only be used when other data is unavailable.
The WWTP has historic flow -measurement data available that should be used to
determine the peaking factor. Currently, the City's Design and Construction Standards
require a peaking factor of 3.05, which was determined as part of the Wastewater
Facility Plan Update (2008). This peaking factor is based on flow -measurement data
from the WWTP and an influent flow of 11 Million Gallons per Day in March 1997. Much
of this flow is assumed to be attributed to snow melt infiltration caused by the record
snow fall during the 1996-1997 winter.
Therefore, the peaking factor of 3.05 will be used for the sizing and design of the WSI,
as required per the current City of Kalispell Standards Design and Construction.
7.C. Flows
7.C.1. Pump Station Flows
The estimated flows that will be seen at the new South Meridian Pump Station are
anticipated to include all areas within the WSI Sewer Service Area, except area E4 (244
ERU's) as shown on Figure 18. Sub -area E4 is planned to be served by Pump Station
# 33 and convey flow to the existing collection system via a forcemain.
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Pump stations are sized and designed for a 20-year planning period. Table 4 below
shows the flows at the pump station for the 20-year planning period and the theoretical
full build -out.
Table 4 - Full Build -Out: Pump Station Flows
Flow Condition
Peaking
ERU'(s)
Flow (MGD)
Factor
20-Year Planning Period
3.05
2,316
1.87
Design Peak Hour Flow
Full Build -Out
3.05
17,434
14.09
Design Peak Hour Flow
7.C.2. Gravity Collection Main Flows
The estimated flows for the gravity collection main were calculated utilizing the sewer
model. The sewer model provides a more accurate estimates of the peak hour flows by
accounting for the distance and time that wastewater flows within model. This results in
a peak hour flow that is less than estimating it based on total ERU's and not including
the travel time of the wastewater.
Gravity collection mains are sized and design for theoretical full build -out. Table 5
below shows the flows for the gravity collection mains for theoretical full build -out.
Table 5 - Full Build -Out: Gravity Collection Main Flows
Segments
Flow
Direction
Modeled Peak Hour Flow
(MGD)
1
Start
12.53
2-1
Upstream
12.53
3, 4-1, 5, 6-1
Upstream
10.77
7 (pipe transition)
Upstream
6.83
7
End
3.45
As shown above, the estimated peak hour flow after full build -out of the WSI sewer
service area is anticipated to be 12.53 MGD, which equates to approximately 15,500
ERUs.
7.D. Sizing
Sizing of the WSI must be evaluated differently for the pump stations and the gravity
collection mains. The pump stations should be designed for the 20-year planning
period, while the gravity collection mains should be designed for theoretical full build -
out.
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7.D.1. Pump Station Sizing
The pump station should be designed to accommodate the anticipated flow seen from
the first day of operation up to the flows calculated for the 20-year planning period. The
pump station will potentially have 827 ERUs flowing to it from existing platted
subdivisions and up to 2,316 ERUs during the 20-year planning period.
The estimated peak hourly flows at the pump station range between 464 and 1,300
gallons -per -minute (gpm) over the 20-year planning period. Using DEQ criteria for
sewage pumping stations, initial recommendations are to provide pumps controlled by
variable frequency drives for pumping rates ranging between 900 and 1300 gpm. A 12"
diameter forcemain would maintain required flushing velocities. The wet well for this
pump station could be oriented in several ways to provide the necessary storage and
pumping volumes. A 12-foot x 12-foot poured concrete wet well would utilize
approximately 3 vertical feet to accommodate the pumping volume. Table 6 shows the
preliminary design for the 20-year planning period.
Table 6 - Pump Station Preliminary Design: 20-Year Period
Criteria
Design for 20-Year Planning Period
Average Daily Flow Rate @ 827 ERUs
152 gpm
Average Daily Flow Rate @ 2,316 ERUs
426 gpm
Peak Hourly Flow @ 827 ERUs
464 gpm
Peak Hourly Flow @ 2,316 ERUs
1,300 gpm
Minimum Pumping Rate (827 ERUs)
900 gpm
Maximum Pumping Rate (2,316 ERUs)
1,300 gpm
Pump Control
Variable Frequency Drives
Number of Pumps
2
Pumping Volume
3230 gallons
Wet Well
12'x12' Square
Forcemain Diameter
12-inch
Pumping Volume Depth
3-feet
The preliminary design above satisfies the estimated sewage flow for the 20-year
planning period.
Although the pump station will be designed for the 20-year planning period, the project
team recommends constructing some aspects of the South Meridian pump station to
allow for doubling its capacity. There are considerable cost savings by constructing
pump station improvements in a single phase. Parallel wet wells are recommended to
be designed and constructed. This could be accomplished by constructing a second
12-foot by 12-foot wet well. This structure would presumably share a common wall and
floor. The duplicate wet well would remain unused and would come into service once
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there are approximately 2,316 ERU's connected to the WSI. Pumps would be installed
at that time (identical to the pumps in the initial installation). Conduits and other basic
infrastructure would be installed during the initial construction to minimize cost and
disturbance when this additional capacity becomes necessary.
7.D.2. Gravity Collection Main Sizing
The gravity collection pipes should be designed and sized for the peak hour flow at
theoretical full build -out. Polyvinyl Chloride (PVC) pipes have a service life of
approximately 100-years and therefore are sized to handle the flow from the theoretical
full build -out.
The gravity collection mains need to be sized to handle the peak hour flows and provide
a minimum velocity as required by the Montana Department of Environmental Quality
(DEQ). Table 7 lists the friction factors and minimum slopes required by DEQ Design
Standards for Public Sewage Systems (DEQ-2).
Table 7 - Pipe Friction Factors & Slopes per DEQ-2
Pipe Diameter
Friction Factor
(n)
Minimum Slope — Per DEQ-2
(ft/ft)
36 Inch Plastic Pipe
0.013
.00046 (0.046%)
30 Inch Plastic Pipe
0.013
.00058 (0.058%)
27 Inch Plastic Pipe
0.013
.00067 (0.067%)
24 Inch Plastic Pipe
0.013
.00080 (0.080%)
Utilizing the sewer model, with the pipe networks, population data, flows, friction factors
and slopes, it is possible to determine the size of the pipes for the WSI. Additionally,
the minimum slope required for each pipe size and the pipe capacity (at 85% full) can
be determined. Table 8 shows the pipe segments, minimum design slopes, design
flows and the pipe capacities (friction factor, n=0.013).
Table 8 - Preliminary Design Parameters for Gravity Pipe
Segments
Dia.
(in)
Min Design
Slope (ft/ft)
Design Flows
(MGD)
Pipe Capacity@
85% Full (MGD)
1, 2-1
36
.001 (0.10%)
12.53
14.05
3, 4-1, 5, 6-1
30
.0016 (0.16%)
10.77
10.93
7(pipe transition)
27
.0012 (0.12%)
6.83
7.14
7
24
.001 (0.10%)
3.45
4.76
(Note: The recommended route is the only route modeled at this time).
The pipe sizes for the WSI ranging from 36 inch to 24 inch in diameter. The design
should incorporate the minimum design slopes shown above. The friction factor should
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be re-evaluated with DEQ and the City to determine if a lower friction factor could be
utilized for PVC pipe. After completion of final design, the sewer model should be
updated to verify all design requirements will be met.
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8. Evaluation of Alternatives
For all segments having two alternatives, the alternatives were evaluated to determine
which is preferred. To complete this, a matrix was developed which assigns points and
a weighting value to six (6) key criteria. The matrix was developed with input and
assistance from the Public Works Department.
8.A. Matrix Criteria
Each alternative segment was evaluated based on the following key criteria. Each
criteria was assigned points ranging from 1 (least preferred) to 5 (most preferred).
Below is a description of the criteria:
Access: Access is important for the City to perform maintenance on any sewer
system. Access is best provided via improved surfaces, either gravel or asphalt. It
is best to have access in very low use locations. Access located within high traffic
roadways increases the time, and thus cost, of performing maintenance due to
having to provide traffic control and limiting the working area. Additionally, when in
high traffic roadways there is additional safety concerns for City employees. Each
segment will be evaluated and assigned points based on the location and type of
access as follows:
Table 9 - Matrix Criteria: Access
Criteria
Points
Preference
Access is through unimproved roadway/field
1
Least
Access is via paved road — Collector or Arterial Street
2
Access is via paved road — Alley or Local Street
3
Access is via gravel path
4
Access is via paved path
5
Most
Depth: The depth of sewer lines need to be sufficient enough to prevent them from
freezing (typically 4-feet or deeper), but not excessively deep. If sewer lines are
excessively deep, this can increase the potential inflow and infiltration from ground
water and can make it much more costly to install and maintain. The Public Works
Department has weighed in on this criteria and has indicated that they would prefer
the sewer system to be only as deep as necessary to prevent freezing. Each
segment will be evaluated and assigned points based on the average depth to the
top of pipe.
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Table 10 -Matrix Criteria: Depth
Criteria
Points
Preference
Average depth is 16 feet or more to top of pipe
(> 16 feet deep)
1
Least
Average depth is 14 feet to top of pipe
12-16 feet deep)
2
Average depth is 10 feet top of pipe (8-12 feet deep)
3
Average depth is 6 feet to top of pipe (4-8 feet deep)
4
Average depth is 2 feet to top of pipe (0-4 feet deep)
5
Most
Pump Station Abandonment: Abandoning existing pump stations will greatly
reduce annual operation and maintenance costs for the City and save energy. The
Public Works Department has weighed in on this criteria and has indicated that they
prefer to abandon as many pump stations as possible. Each segment will be
evaluated and assigned points based on the number of pump stations that can be
abandoned.
Table 11 -Matrix Criteria: Pump Station Abandonment
Criteria
Points
Preference
Abandon no Pump Stations
1
Least
Abandon 1 Pump Stations
2
Abandon 2 Pump Stations
3
Abandon 3 Pump Stations
4
Abandon 4 Pump Stations
5
Most
Public Disturbance/Interruption: Construction projects result in public
disturbances and interruptions. Reconstruction of public roadways cost more and
creates more disturbance and interruptions for the traveling public. Although most
sewer collection systems are located within public roadways, sewer interceptors
typically are not. "Interceptors are often constructed in private easements because
the most favorable locations for interception are usually near natural drainage
channels" per Wastewater Engineering: Collection and Pumping of Wastewater,
Metcalf & Eddy, Inc., 1981. The Public Works Department has weighed in on this
criteria and has indicated that they would prefer to minimize the amount of work that
is necessary within public roadways. Therefore, each segment will be evaluated and
assigned points based on the length of roadway reconstruction.
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Table 12 - Matrix Criteria: Public Disturbance/Interruption
Criteria
Points
Preference
1,000' or more of Roadway Reconstruction
1
Least
1,000' — 800' of Roadway Reconstruction
2
800' — 600' of Roadway Reconstruction
3
600' — 400' of Roadway Reconstruction
4
400' or less of Roadway Reconstruction
5
Most
Project Costs: Project costs are an important criteria and need to be evaluated to
select the preferred segment. Project costs estimates for all segments are
contained in Appendix A. When comparing segments, the lowest cost alternative
will receive the most preference. Then, the alternative will be compared against the
lowest cost alternative and points will be assigned based on the percentage more
than the lowest cost alternative.
Table 13 - Matrix Criteria: Project Costs
Criteria
Points
Preference
40% more than other alternatives
1
Least
30% more than other alternatives
2
20% more than other alternatives
3
10% more than other alternatives
4
Lowest Cost or Same Cost as other alternatives
5
Most
Available Right -of -Way: Construction of infrastructure within existing ROW
reduces potential risks associated with securing ROW from private landowners.
Securing ROW from private land owners adds costs and time to the project. The
Public Works Department has weighed in on this criteria and has indicated that they
would desire to minimize the amount of right-of-way acquisition that is required to
construct the improvements. Therefore, each segment will be evaluated and
assigned points based on the number of easements/permits needed.
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Table 14 - Matrix Criteria: Available Right -of -Way
Criteria
Points
Preference
4 or more Easements/Permits Needed
1
Least
3 Easements/Permits Needed
2
2 Easements/Permits Needed
3
1 Easement/Permit Needed
4
No Easements/Permits Needed
5
Most
8.B. Criteria Weighting Value
The weighting value will be multiplied by the points assigned to each segment. The
weighting value is on a scale from 1 to 10. The higher the weighting value, the more
importance the criteria. With direction from the Public Works Department, the following
weighting values will be used for each criteria. Table 15 summarizes the weighting
value assigned to each criteria.
Access: Access was assigned a weighting value of 8. Access is very important for the
City to maintain their infrastructure.
Depth: Depth was assigned a weighting value of 2. Depth impacts several factors,
including future extensions, but is not as important as other issues.
Pump Station Abandonment: Pump station abandonment was assigned a weighting
value of 10. Abandoning existing pump stations will greatly reduce annual operation
and maintenance costs and is very important.
Public Disturbance/Interruption: Public disturbance/interruption was assigned a
weighting value of 5. Although this criteria is of concern only during construction, it is
important to the City to evaluate and compare for alternative segments.
Project Costs: Project costs was assigned a weighting value of 8. Project costs are
important to evaluate and compare for alternative segments.
Available Right -of -Way: Available right-of-way was assigned a weighting value of 4.
Securing needed right-of-way can be challenging if unwilling landowners are present.
Therefore, due to this risk, it is important to evaluate and compare for alternative
segments.
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Table 15 - Matrix Criteria: Weighting Values
Criteria
Weighting Value
Access
8
Depth
2
Pump Station Abandonment
10
Public Disturbance/Interruption
5
Project Costs
8
Available Right -of -Way
4
8.C. Matrix Evaluation of Segment Alternatives
All segments having two alternatives were evaluated based on the established criteria
and weighting values. Table 16, Table 17 and Table 18 on the following pages show
the matrix evaluation and each is each followed by a discussion of the preferred
segment.
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Table 16 - Matrix Evaluation: Segments 2-1 and 2-2
CRITERIA
Weight
Segment 2-1
Segment 2-2
Points
Total Score
Points
Total Score
Access
8
4
32
3
24
Depth
2
3.5
7
3
6
Pump Station
Abandonment
10
0
0
0
0
Public
Disturbance/I nterru p
tion
5
4
20
1
5
Project Costs
8
5
40
4
32
Available Right -of-
Way
4
3
12
4
16
Total Score =
111
83
Segment 2-1 is the preferred segment. In addition to the criteria listed above, Segment
2-1 also minimizes the coordination effort that is required with MDT for the Kalispell
Bypass and also provides for much more future connections for lands located south of
Two Mile Drive within the sewer service area.
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Table 17 - Matrix Evaluation: Segments 4-1 and 4-2
CRITERIA
Weight
Segment 4-1
Segment 4-2
Points
Total Score
Points
Total Score
Access
8
3
24
2.5
20
Depth
2
3
6
1
2
Pump Station
Abandonment
10
2
20
2
20
Public
Disturbance/I nterru p
tion
5
3
15
1
5
Project Costs
8
5
40
1
8
Available Right -of-
Way
4
3
12
4
16
Total Score =
117
71
Segment 4-1 is the preferred segment. Although both segments eliminate one (1)
existing pump station, Segment 4-1 eliminates a much larger pump station. Also, the
pump station that is eliminated in Segment 4-2 will more than likely be eliminated when
future development is completed to the east and south of the existing pump station.
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Table 18 - Matrix Evaluation: Segments 6-1 and 6-2
CRITERIA
Weight
Segment 6-1
Segment 6-2
Points
Total Score
Points
Total Score
Access
8
1
8
2
16
Depth
2
3
6
2
4
Pump Station
Abandonment
10
2
20
2
20
Public
Disturbance/Interrup
tion
5
5
25
1
5
Project Costs
8
5
40
1
8
Available Right -of-
Way
4
1
4
3
12
Total Score =
103
65
Segment 6-1 is the preferred segment. The project costs of Segment 6-1 compared to
Segment 6-2 is the primary reason for choosing Segment 6-1. The cost savings of
Segment 6-1 is realized by constructing the segment upon private land, within future
easements, and minimizing the length and depth of pipe installation and minimizing the
amount of roadway construction.
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9. Downstream Conveyance Piping
With the flows determined for the 20-year planning period, it is prudent to review
downstream conveyance piping and available capacity.
During the 20-year planning period, the forcemain from the South Meridian Pump
Station will connect to existing 30" piping at 10 Street West and 5t" Avenue West. From
this connection point, the existing conveyance piping traverses through south Kalispell
and connects to the Wastewater Treatment Plant. The piping changes size from 30" to
36" just south of the City shops and west of 1 st Avenue East.
Utilizing the sewer model, the current remaining capacity of these lines were estimated.
Table 19 shows the remaining capacities in the most restrictive/limited areas within the
lines, based upon the sewer model.
Table 19 - Downstream Piping Capacity
Pipe Segment
MH to MH
Location
Pipe Diameter
Inches
Available Capacity
ERUs
26 - 25
In 10t" Street West,
30
6,400
between 5t" Avenue West
and 4t" Avenue West
2-1
Segment just upstream of
36
3,000
WWTP that is under
access road to WWTP
The downstream conveyance piping is most restrictive just upstream of the WWTP due
to a section of pipe with a very flat slope. This segment of pipe receives all increases in
flow from the entire City of Kalispell.
With the 20-year population projections resulting in an estimated increase of 2,978
ERUs within the entire City of Kalispell, and an available capacity remaining of
approximately 3,000 ERUs, there will not likely be a downstream conveyance issue in
the 20-year planning period.
Beyond the 20-year planning period, two more segments of the WSI will need to be
completed as the wastewater flows and population continue to grow. It is our
recommendation that the City continue reviewing this pipe segment and monitor the
flows in the pipe to routinely track available capacity. When this pipe segment reaches
capacity, the City should proceed with the construction of the Airport Gravity Main
segment.
Upstream of the Airport Gravity Main, a pipe segment with 6,400 ERUs available
capacity is projected to reach capacity sometime between 40-60 years, depending upon
development patterns. When this pipe segment reaches capacity, the City should
proceed with the construction of the Forcemain — Future 24" Pipe to reroute flow to the
new Airport Gravity Main. Construction of this last segment, will fully complete the WSI.
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10. Conclusions and Recommendations
Based upon the findings within this report, the City of Kalispell should plan to construct
the gravity interceptor piping, pump station, forcemains and extensions and
replacements for existing pump stations as discussed below.
1O.A. Recommendation for Gravity Interceptor Piping
The project team recommends that the City of Kalispell plan on installing gravity
interceptor piping that will accommodate the flows for full build -out. A preliminary
design profile of all segments is included in Appendix C.
The project team recommends that the City of Kalispell plan on installing the
recommended segments of the WSI up to Parkridge Drive, which is the end of Segment
6-1. By extending the WSI gravity collection main to this point the City could eliminate
four (4) existing pump stations, provide an additional 827 ERUs in Trunk Line A, and will
be available to accommodate growth west of Kalispell.
The project team also recommends that the City closely monitor development plans
within the area of Segment 7. If properties in the area are developed, the City could
potentially cost -share the improvements with the developers to install the needed size of
gravity main to extend the WSI further north.
It is recommended that the City plan to install the following segments as the preferred
route:
• Segment 1
• Segment 2-1
• Segment 3
• Segment 4-1
• Segment 5
• Segment 6-1
Figure 19 shows an overview of the recommended project.
1O.13. Recommendation for Pump Stations
The project team recommends that the City of Kalispell plan for the new South Meridian
Pump Station to accommodate the flows predicted through the 20-year planning period.
Additionally, we recommend that a duplicate concrete wet well be planned due to the
cost savings of constructing the additional wet well at the same time. All electrical
components and mechanical equipment will be installed only for the 20-year planning
period.
1O.C. Recommendation for Forcemains
The project team recommends that three parallel forcemains be installed for the South
Meridian Pump Station. The forcemains would extend from the South Meridian Pump
Station to the existing 30" sewer line at 10t" Street West and 5t" Avenue South. These
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three parallel force mains ((2) 12" and one (1) 20") are recommended to minimize future
construction costs. It estimated that the cost of installing these forcemains in a common
trench during initial construction is low in comparison to the cost of installing additional
mains in future phases as growth occurs. Future installations may preclude close
proximity to subsequent installations (risk of disturbing "live" forcemain) and may require
additional easements. These force mains would be installed at the time of initial
construction but utilized in the future as flows from the South Meridian Pump Station
increase. In combination, these force mains would accommodate the theoretical build
out of the WSI Service Area.
(Note: The 2-12" Forcemains and the 1-20" Forcemain are sized to convey the flow
from the South Meridian Pump Station at full build -out. At some time in the future the
forcemain will need to be extended from the existing 30" sewer line at loth Street West
and 5th Avenue South to the north end of the City Airport and a new collection main will
need to be installed from the WWTP to the north end of the City Airport.)
1 D.D. Extensions and Replacements for Existing Pump Stations
The project team recommends completing the work necessary to abandon existing
pump stations by extending gravity collection mains from the WSI to existing pump
station locations.
It is anticipated that the following pump stations could be abandoned with the
recommendation for the gravity collection main extending to Three Mile Drive. Below is
a discussion of these pump stations and the anticipated work associated with
abandoning these.
Pump Station #29: This pump station receives flow from the Aspen Creek
Subdivision, Spring Creek Estates and Mountain Vista Estates. With some
system revisions within Aspen Creek Estates, the pump station could be
abandoned completely. The required improvements are shown in Figure 12.
Pump Station #19: This pump station receives flow from the Blue Heron
Estates No. 1 & No. 2. With some minor system revisions, the pump station
could be abandoned completely. The required improvements are shown in
Figure 13.
Pump Station # 24: This pump station receives flow from Empire Estates
Subdivision. With some system revisions, the pump station could be abandoned
completely. The required improvements are shown in Figure 14.
Pump Station # 28: This pump station receives flow from Cottonwood Park and
Blue Heron Estates No. 3. With some minor system revisions, the pump station
could be abandoned completely. The required improvements are shown in
Figure 13.
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1O.D.1. Pump Station # 33 Forcemain
The project team recommends that the existing 6" forcemain from Pump Station #33 be
connected to the new forcemains from the South Meridian Pump Station. Cost
Estimates
Detailed cost estimates of the recommended project are included in Appendix B. It is
estimated that the recommended project will cost $10,996,000.00.
1O.E. Funding Recommendation
The WSI project does not appear to qualify for any substantial grant subsidy other than
a (or potentially multiple successive) Renewable Resource Grant and Loan (RRGL)
grant(s) of $125,000. This is due primarily to the unlikelihood that "post -project" sewer
user rates would approach the Montana Department of Commerce (MDOC) Target Rate
threshold, thereby not showing adequate financial need for eligibility or competitiveness.
Insufficient Low -to -Medium Income (LMI) households also prevent Community
Development Block Grant (CDBG) eligibility and the Kalispell population exceeds Rural
Development's cap for wastewater grant/loan packages.
Financing for the WSI is most cost-effective through the Water Pollution Control State
Revolving Fund (WPCSRF) program, where terms are currently 2.5% interest, 20-year
term (30-year available on pipelines), and 110% rate coverage. Consequently the
recommended funding approach for the WSI is WPCSRF loan financing.
WPCSRF loan application(s) can be prepared and submitted as soon as the WSI
project is submitted for inclusion on the Project Priority Listing. A single $10.99 million
loan application (i.e., Uniform Application for Montana Public Facilities Projects) would
presumably lock in the current 2.5% WPCSRF interest rate, but may be subject to
availability of program funds. The WPCSRF program staff should be consulted about
the latter before submitting an application. Phasing the project in two or more
increments may perhaps be more conducive to WPCSRF funds availability, but risks
future increases in WPCSRF interest rates.
10.F. Next Steps
The following steps are recommended for continuing forward with the WSI project.
1. Confirm preferred route and the recommended project: Review the preferred
route assessment and confirm the recommendations for the preferred route and
the recommended project.
2. Proceed with Preliminary Engineering Design Required for MDT Bypass:
Execute a task order to proceed with surveying, mapping, engineering design
and MDT Plans, Specifications and Estimate for the casing. The MDT has stated
that these plans need to be completed by November 30th, 2014 for inclusion in
bidding for the Kalispell Bypass. This work should include that portion of the
preferred route from the South Meridian Pump Station to US Highway 2.
3. Complete Application for Inclusion on Project Priority Listing: Submit the project
to WPCSRF for inclusion on the Project Priority Listing.
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4. Proceed with Preliminary Engineering for Recommended Project: Execute a task
order to proceed with surveying, mapping and engineering design for the entire
recommended project. This will include geotechnical work and ground water
monitoring along the preferred route.
5. Secure Deviation for MFE Allocation from MDEQ: Public Works staff will work
with local MDEQ staff to develop the appropriate deviation request. The deviation
request will then be presented to the Deviation Committee in Helena for
consideration. In conjunction with a firm commitment to the WSI, the deviation
will allow Public Works staff to approve new sewer connections to Line A beyond
the unallocated capacities.
6. Proceed with Easement and Parcel Negotiations: Using the engineering design
as a basis for the required easements and parcels, execute a task order to
proceed with easement and parcel negotiations. This work will include receiving
title reports and appraisals of the properties affected and coordination with the
landowners to secure purchase agreements.
7. Secure Funding: Prepare and submit loan applications to WPCSRF. This will
require coordinating with WPCSRF staff prior to submitting the application.
8. Proceed with Easement and Parcel Acquisitions: Proceed with acquiring the
required easements and parcel acquisitions.
9. Proceed with Final Engineering, Construction Drawings, Specifications and
Estimates: Execute a task order to proceed with developing Construction
Drawings, Specifications and Estimates for the project.
10. Proceed with Permitting: Execute a task order to proceed with applying for and
receiving all required permits for the project.
11. Bidding: Advertise for bids and receive bid proposals from interested contractors
for the project.
12. Construction: Construct the recommended project.
Engineering design is estimated to take approximately one-year to complete. Likewise,
construction of the recommended project is estimated to take approximately one-year to
complete.
Robert Peccia & Associates 55
Pump Station #28
Abandon
Pump Station #19
Abandon -
mp Station #29 +
Abandon
-- AL
■Pump Station
i
It
iouth Mer
Pump Sta
IPumo Station #331
West Side Interceptor
Preferred Route Assessment
Appendix A - Cost Estimates: Full Build -Out &
Alternative Segments
Robert Peccia & Associates Appendix
SUMMARY OF PROJECT COSTS
WEST SIDE INTERCEPTOR PROJECT
FULL BUILD -OUT & SEGMENT COMPARISONS
RPAV Updated 11-18-2014 by REM
Total
Fees/Costs
AIRPORT GRAVITY MAIN
$1,353,816
FORCE MAIN - FUTURE 24" PIPE
$1,120,428
FORCEMAIN TO PUMP STATION
$1,370,076
SOUTH MERIDIAN PUMP STATION
$2,045,240
Subtotal =
$5,889,560
WEST SIDE INTERCEPTOR - GRAVITY COLLECTION SYSTEM
SEGMENT 1 - PUMP STATION TO BYPASS
$1,158,169
SEGMENT 2.1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
$3,104,708
SEGMENT 2.2 - BYPASS TO TWO MILE DRIVE (KALISPELL BYPASS)
(Not Preferred Route)
$3,530,712
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 (WEST VIEW DRIVE)
$654,504
SEGMENT 4.1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek Subdivision)
$1,261,124
SEGMENT 4.2 - LOT 48 TO THREE MILE DRIVE (Through Spring Creek Subdivision)
(Not Preferred Route)
$1,935,653
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND (In Parkland)
$652,416
SEGMENT 6.1 - PARKLAND TO PARKRIDGE DRIVE (Within Drainage)
$749,727
SEGMENT 6.2 - PARKLAND TO PARKRIDGE DRIVE (In Stillwater Road)
(Not Preferred Route)
$1,182,057
SEGMENT 7 - PARKRIDGE DRIVE TO W RESERVE DRIVE
$2,847,017
Subtotal =
$10,427,664
W RESERVE DRIVE TO PUMP STATION #36
$947,556
Total Project Costs
$17,264,780
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Pria
No. Quantity Unit Description (Figures) (Figures)
AIRPORT GRAVITY
Construction Costs
1 1
2 1
MAIN
$43,900.00
$17,600.00
$3.00
$800.00
$250.00
$12,000.00
$370.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$188,000.00
$0.00
$1.50
$0.30
$33,845.40
$112,818.00
$78,972.60
r
$43,900.00
$17,600.00
$1,200.00
$0.00
$0.00
$48,000.00
$795,500.00
$8,700.00
$1,340.00
$1,750.00
$1,750.00
$8,100.00
$12,340.00
$188,000.00
$1,128,180.00
$0.00
$0.00
$0.00
$0.00
$33,845.40
$112,818.00
$78,972.60
$225,636.00
$1,353,816.00
LS
Mobilization, Bonding and Submittals (5% Max)
LS
Traffic Control
3
400
SY
Asphalt Removal
4
0
LF
Bore & Jack with 48" Steel Casing Pipe
5
0
LF
48" Steel Casing Pipe (by Open Cut)
6
4
EA
Manhole - 96" Sanitary Sewer
7
2,150
LF
Pipe - Buried: 54" Sanitary Sewer Main
8
290
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
670
SY
Stabilization Fabric
10
70
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
50
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
90
TON
Asphalt Concrete Pavement: 4" Thick
13
6,170
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1
TOTAL COSTS:
LS
Construction Engineering
Subtotal Professional Fees =
PREPARED BY RPA 11/24/2014 Page 2
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Pria
No. Quantity Unit Description (Figures) (Figures)
2CEMAIN - 24" PIPE DIAMETER
istruction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,680
SY
Asphalt Removal
4
2
EA
Manhole - 48" Sanitary Sewer
5
4,450
LF
Pipe - Buried: 24" Sanitary Sewer Force Main - HDPE
.(Trenching, Bedding, and Backfill Included in this Item
8
0
EA
Valve - 12"
9
0
EA
Valve - 20"
10
1
EA
Existing Sewer Main Connection
11
2,660
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
2,460
SY
Stabilization Fabric
13
620
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
410
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
810
TON
Asphalt Concrete Pavement: 4" Thick
16
5,640
SY
Vegetation Restoration
17
LF
Concrete Curb and Gutter
18
1
LS
20% Continqencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 18,000 SF Easements
3 0 SF Permits
Subtotal Land Costs =
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 ILS IDesign Engineering
3 1 ILS lConstruction Engineering
I I Subtotal Professional Fees =1
TAL COSTS:
$34,400.00
$34,400.00
$27,500.00
$27,500.00
$3.00
$11,040.00
$4,000.00
$8,000.00
$105.00
$467,250.00
$2,500.00
$0.00
$3,500.00
$0.00
$3,000.00
$3,000.00
$30.00
$79,800.00
$2.00
$4,920.00
$25.00
$15,500.00
$35.00
$14,350.00
$90.00
$72,900.00
$2.00
$11,280.00
$15.00
$0.00
$150,000.00
$150,000.00
$899,940.00
$0.00
$1.50 $27,000.00
$0.00 $0.00
$27,000.00
$40,498.20 $40,498.20
$89,994.00 $89,994.00
$62,995.80 $62,995.80
$193,488.00
$1,120,428.00
PREPARED BY RPA 11/24/2014 Page 3
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Quantity Unit
Unit
Description
4 TO PUMP STATION
n Costs
1
LS
Mobilization, Bonding and Submittals (5% Max)
1
LS
Traffic Control
5,600
SY
Asphalt Removal
2
EA
Manhole - 48" Sanitary Sewer
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
(Trenching, Bedding, and Backfill Included in this Item
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
Pie placed in common trench)
4,200
LF
Pipe - Buried: 20" Sanitary Sewer Force Main - C905 DR18 PCV Pipe
Pie placed in common trench
8
EA
Valve - 12"
4
EA
IValve - 20"
1
EA
Existing Sewer Main Connection
4,050
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
3,740
SY
Stabilization Fabric
940
CY
Select Sub -Base Course - 3" Minus: 9" Thick
630
CY
Crushed Base Course - 3/4" Minus: 6" Thick
1,240
TON
Asphalt Concrete Pavement: 4" Thick
0
SY
Vegetation Restoration
LF
lConcrete Curb and Gutter
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 0 SF Easements
3 0 SF Permits
Subtotal Land Costs =
ProfessionalFees
1 1 1 LS Project Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
3 1 1 ILS lConstruction Engineerina
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$43,600.00 $43,600.00
$34,900.00 $34,900.00
$3.00 $16,800.00
$4,000.00 $8,000.00
$65.00 $273,000.00
$20.00 1 $84,000.00
$40.00 1 $168,000.00
$2,500.00 $20,000.00
$3,500.00 $14,000.00
$3,000.00 $3,000.00
$30.00 $121,500.00
$2.00 $7,480.00
$25.00 $23,500.00
$35.00 $22,050.00
$90.00 $111,600.00
$2.00 $0.00
$15.00 $0.00
$190,300.00 $190,300.00
$1,141,730.00
$0.00
$0.00 $0.00
$0.00 $0.00
$0.00
$34,251.90 $34,251.90
$114,173.00 $114,173.00
$79,921.10 $79,921.10
$228,346.00
$1,370,076.00
PREPARED BY RPA 11/24/2014 Page 4
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SOUTH MERIDIAN PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Site Work and Buried Piping
3
1
LS
Shoring, Dewatering, and Structural Excavation
4
1
LS
Pump Station Structure
5
1
LS
Pump Station Mechanical
6
1
LS
Pump Station HVAC
7
1
LS
jPump Station Electrical
8
1
LS
20% Contingencv
Subtotal Construction Costs
Land Costs
1 1 LS Parcel Acquisition
2 0 SF Easements
3 0 SF Permits
Subtotal Land Costs =
Professional Fees
1 1 1 LS Project Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
3 1 1 ILS lConstruction Enqineerinq
I I Subtotal Professional Fees =1
TAIL COSTS:
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$63,500.00 $63,500.00
$180,000.00 $180,000.00
$260,000.00 $260,000.00
$380,000.00 $380,000.00
$240,000.00 $240,000.00
$30,000.00 $30,000.00
$180,000.00 $180,000.00
$266,700.00 $266,700.00
$1,600,200.00
$100,000.00 $100,000.00
$0.00 $0.00
$0.00 $0.00
$100,000.00
$73,006.00 $73,006.00
$160,020.00 $160,020.00
$112,014.00 $112,014.00
$345,040.00
$2,045,240.00
PREPARED BY RPA 11/24/2014 Page 5
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 1 - PUMP STATION
TO BYPASS
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
567
SY
Asphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
10
EA
Manhole - 72" Sanitary Sewer
7
3,570
LF
Pipe - Buried: 36" Sanitary Sewer Main
8
410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
947
SY
Stabilization Fabric
10
100
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
70
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
130
TON
Asphalt Concrete Pavement: 4" Thick
13
17,480
SY
lVegetation Restoration
14
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
57,000
SF
Easements (30' Wide)
3
38,000
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
ILS
IDesign Engineering
3
1
ILS
lConstruction Engineering
I I Subtotal Professional Fees =1
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$33,700.00 $33,700.00
$13,500.00 $13,500.00
$3.00 $1,700.00
$800.00
$0.00
$250.00
$0.00
$7,000.00
$70,000.00
$150.00
$535,500.00
$30.00
$12,300.00
$2.00
$1,893.33
$25.00
$2,500.00
$35.00
$2,450.00
$90.00
$11,700.00
$2.00
$34,960.00
$144,000.00
$144,000.00
$864,203.33
$0.00 1 $0.00
$1.50I $85,500.00
$0.30 $11,400.00
$96,900.00
$50,151.10 $50,151.10
$86,420.33 $86,420.33
$60,494.23 $60,494.23
$197,065.67
$1,158,169.00
PREPARED BY RPA 11/24/2014 Page 6
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 2-1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,333
SY
Asphalt Removal
4
360
LF
Bore & Jack with 54" Steel Casing Pipe
5
265
LF
54" Steel Casing Pipe (by Open Cut)
6
16
EA
Manhole - 72" Sanitary Sewer
7
600
LF
Pipe - Buried: 12" Sanitary Sewer Main
8
6,570
LF
Pipe - Buried: 36" Sanitary Sewer Main
9
2,410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
10
2,230
SY
Stabilization Fabric
11
560
CY
Select Sub -Base Course - 3" Minus: 9" Thick
12
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
13
740
TON
Asphalt Concrete Pavement: 4" Thick
14
22,620
SY
Vegetation Restoration
15
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
102,000
SF
Easements (30' Wide)
3
78,500
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3
1
LS
lConstruction Engineering
Subtotal Professional Fees =
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$93,600.00 $93,600.00
$37,400.00 $37,400.00
$3.00 $10,000.00
$950.00 $342,000.00
$370.00 $98,050.00
$7,000.00 $112,000.00
$71.00 $42,600.00
$160.00 $1,051,200.00
$30.00 $72,300.00
$2.00 $4,460.00
$25.00 $14,000.00
$35.00 $13,300.00
$90.00 $66,600.00
$2.00 $45,240.00
$400,600.00 $400,600.00
$2,403,350.00
$0.00 $0.00
$1.50 $153,000.00
$0.30 $23,550.00
$176,550.00
$116,238.00 $116,238.00
$240,335.00 $240,335.00
$168,234.50 $168,234.50
$524,807.50
$3,104,707.50
PREPARED BY RPA 11/24/2014 Page 7
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 2-2 - BYPASS TO TWO MILE DRIVE (KALISPELL BYPASS)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
2,800
SY
Asphalt Removal
4
150
LF
Bore & Jack with 54" Steel Casing Pipe
5
1,400
LF
54" Steel Casing Pipe (by Open Cut)
6
14
EA
Manhole - 72" Sanitary Sewer
7
6,735
LF
Pipe - Buried: 36" Sanitary Sewer Main
8
2,030
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
1,870
SY
Stabilization Fabric
10
470
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
320
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
620
TON
Asphalt Concrete Pavement: 4" Thick
13
10,560
SY
Vegetation Restoration
14
1
ILS
20% Continaencv
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
24,000
SF
Easements (30' Wide)
3
16,000
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
ILS
IDesign Engineering
3
1
ILS
lConstruction Engineering
I I Subtotal Professional Fees =1
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$112,900.00 $112,900.00
$45,200.00 $45,200.00
$3.00 $8,400.00
$950.00 $142,500.00
$500.00 $700,000.00
$7,000.00 $98,000.00
$170.00 $1,144,950.00
$30.00 $60,900.00
$2.00 $3,740.00
$25.00 $11,750.00
$35.00 $11,200.00
$90.00 $55,800.00
$2.00 $21,120.00
$483,300.00 $483,300.00
$2,899,760.00
$0.00 $0.00
$1.50 $36,000.00
$0.30 $4,800.00
$40,800.00
$97,192.80 $97,192.80
$289,976.00 $289,976.00
$202,983.20 $202,983.20
$590,152.00
$3,530,712.00
PREPARED BY RPA 11/24/2014 Page 8
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 (WEST VIEW DRIVE)
Construction Costs
1
1
LS
I Mobilization, Bonding and Submittals (5% Max)
2
1
LS
ITraffic Control
3
1 2,333
SY
jAsphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
5
EA
Manhole - 60" Sanitary Sewer
7
1,750
LF
Pipe - Buried: 30" Sanitary Sewer Main
8
1,690
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
9
1,560
SY
Stabilization Fabric
10
390
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
260
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
520
TON
Asphalt Concrete Pavement: 4" Thick
13
SY
Vegetation Restoration
14
1
LS
20% Continaencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 0 SF Easements (30' Wide)
3 0 SF Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 ILS IDesign Engineering
3 1 ILS lConstruction Engineering
I I Subtotal Professional Fees =1
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$19,800.00
$19,800.00
$39,500.00
$39,500.00
$3.00
$7,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$32,500.00
$135.00
$236,250.00
$30.00
$50,700.00
$2.00
$3,120.00
$25.00
$9,750.00
$35.00
$9,100.00
$90.00
$46,800.00
$2.00
$0.00
$90,900.00
$90,900.00
$545,420.00
$0.00
$0.00
$1.00
$0.00
$0.20
$0.00
$0.00
$16,362.60
$16,362.60
$54,542.00
$54,542.00
$38,179.40
$38,179.40
$109,084.00
PREPARED BY RPA 11/24/2014 Page 9
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 4-1 - LOT 48 TO THREE
MILE DRIVE (Through Aspen Creek Subdivi
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,400
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
100
SY
Concrete Sidewalk Removal & Replacement
8
29
EA
Sanitary Sewer Service - Sch. 40 PVC Pipe
9
7
EA
Manhole - 48" Sanitary Sewer
10
8
EA
Manhole - 60" Sanitary Sewer
11
1,900
LF
Pipe -Buried: 12" Sanitary Sewer Main
12
1,230
LF
Pipe - Buried: 30" Sanitary Sewer Main
13
2,460
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
14
3,400
SY
Stabilization Fabric
15
570
CY
Select Sub -Base Course - 3" Minus: 9" Thick
16
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
17
750
TON
Asphalt Concrete Pavement: 4" Thick
18
3,230
SY
Vegetation Restoration
19
1
ILS
20% Continaencv
d Costs
1
1
LS
2
21,000
SF
3
14,000
SF
fessional Fees
1
1
LS
2
1
LS
ILS
3
1
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$33,300.00
$33,300.00
$66,500.00
$66,500.00
$3.00
$10,200.00
$40,000.00
$40,000.00
$800.00
$0.00
$250.00
$0.00
$80.00
$8,000.00
$1,200.00
$34,800.00
$5,000.00
$35,000.00
$6,500.00
$52,000.00
$71.00
$134,900.00
$142.00
$174,660.00
$30.00
$73,800.00
$2.00
$6,800.00
$25.00
$14,250.00
$35.00
$13,300.00
$90.00
$67,500.00
$2.00
$6,460.00
$154,300.00
$154,300.00
$925,770.00
$100,000.00 $100,000.00
$0.70 $14,700.00
$0.15 $2,100.00
$116,800.00
$61,173.10 $61,173.10
$92,577.00 $92,577.00
$64,803.90 $64,803.90
$218,554.00
$1,261,124.00
PREPARED BY RPA 11/24/2014 Page 10
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 4-2 - LOT 48 TO THREE
MILE DRIVE (Through Spring Creek Subdivision
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
4,301
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
10
EA
Manhole - 60" Sanitary Sewer
8
4,620
LF
Pipe - Buried: 30" Sanitary Sewer Main
9
3,110
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
10
2,870
SY
Stabilization Fabric
11
720
CY
Select Sub -Base Course - 3" Minus: 9" Thick
12
480
CY
Crushed Base Course - 3/4" Minus: 6" Thick
13
640
TON
Asphalt Concrete Pavement: 4" Thick
14
7,750
SY
Vegetation Restoration
15
1
LS
20% Continaency
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3
1
LS
lConstruction Engineering
Subtotal Professional Fees =
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$57,700.00 $57,700.00
$117,000.00 $117,000.00
$3.00 $12,904.00
$30,000.00 $30,000.00
$800.00 $0.00
$250.00 $0.00
$6,500.00 $65,000.00
$185.00 $854,700.00
$30.00 $93,300.00
$2.00 $5,740.00
$25.00 $18,000.00
$35.00 $16,800.00
$90.00 $57,600.00
$2.00 $15,500.00
$268,800.00 $268,800.00
$1,613,044.00
$100,000.00 $0.00
$0.70 $0.00
$0.15 $0.00
$0.00
$48,391.32 $48,391.32
$161,304.40 $161,304.40
$112,913.08 $112,913.08
$322,608.80
$1,935,652.80
PREPARED BY RPA 11/24/2014 Page 11
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND (In Parkland)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
200
SY
Asphalt Removal
4
2
EA
Abandon Existing Lift Station
5
100
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
450
LF
Pipe - Buried: 12" Sanitary Sewer Main
9
1,410
LF
Pipe - Buried: 30" Sanitary Sewer Main
10
150
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
140
SY
Stabilization Fabric
12
50
CY
Select Sub -Base Course - 3" Minus: 12" Thick
13
30
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
50
TON
Asphalt Concrete Pavement: 4" Thick
15
9,500
SY
Vegetation Restoration
16
1
LS
20% Continaencv
d Costs
1
0
LS
2
0
SF
3
0
SF
fessional Fees
1
1
LS
2
1
LS
ILS
3
1
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$20,600.00 $20,600.00
$20,600.00 $20,600.00
$3.00
$600.00
$30,000.00
$60,000.00
$800.00
$80,000.00
$250.00
$0.00
$6,500.00
$32,500.00
$71.00
$31,950.00
$125.00
$176,250.00
$30.00
$4,500.00
$2.00
$280.00
$25.00
$1,250.00
$35.00
$1,050.00
$90.00
$4,500.00
$2.00
$19,000.00
$90,600.00
$90,600.00
$543,680.00
$0.00
$0.00
$1.25
$0.00
$0.25
$0.00
$0.00
$16,310.40
$16,310.40
$54,368.00
$54,368.00
$38,057.60
$38,057.60
$108,736.00
$652,416.00
PREPARED BY RPA 11/24/2014 Page 12
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 6-1 - PARKLAND TO PARKRIDGE DRIVE (Within Drainage)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
1,500
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
1,050
LF
Pipe - Buried: 8" Sanitary Sewer Main
10
1,600
LF
Pipe - Buried: 30" Sanitary Sewer Main
11
1,090
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
1,000
SY
Stabilization Fabric
13
250
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
170
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
330
TON
Asphalt Concrete Pavement: 4" Thick
16
8,480
SY
Vegetation Restoration
17
1
LS
20% Continaencv
d Costs
1
1
LS
2
46,200
SF
3
30,800
SF
fessional Fees
1
1
LS
2
1
LS
ILS
3
1
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$19,800.00
$19,800.00
$19,800.00
$19,800.00
$3.00
$4,500.00
$30,000.00
$30,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$32,500.00
$62.00
$65,100.00
$117.00
$187,200.00
$30.00
$32,700.00
$2.00
$2,000.00
$25.00
$6,250.00
$35.00
$5,950.00
$90.00
$29,700.00
$2.00
$16,960.00
$90,500.00
$90,500.00
$542,960.00
$0.00 $0.00
$1.25 $57,750.00
$0.25 $7,700.00
$65,450.00
$49,013.80 $49,013.80
$54,296.00 $54,296.00
$38,007.20 $38,007.20
$141,317.00
$749,727.00
PREPARED BY RPA 11/24/2014 Page 13
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 6-2 - PARKLAND TO PARKRIDGE DRIVE (In Stillwater Road)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
1,600
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
7
EA
Manhole - 60" Sanitary Sewer
8
280
LF
Pipe - Buried: 8" Sanitary Sewer Main
9
2,930
LF
Pipe - Buried: 30" Sanitary Sewer Main
10
1,160
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
1,070
SY
Stabilization Fabric
12
270
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
180
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
240
TON
Asphalt Concrete Pavement: 4" Thick
15
11,170
SY
Vegetation Restoration
16
1
LS
20% Continaencv
d Costs
1
1
LS
2
45,000
SF
3
30,000
SF
fessional Fees
1
1
LS
2
1
LS
ILS
3
1
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$31,900.00
$31,900.00
$51,000.00
$51,000.00
$3.00
$4,800.00
$30,000.00
$30,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$45,500.00
$62.00
$17,360.00
$160.00
$468,800.00
$30.00
$34,800.00
$2.00
$2,140.00
$25.00
$6,750.00
$35.00
$6,300.00
$90.00
$21,600.00
$3.00
$33,510.00
$150,900.00
$150,900.00
$905,360.00
$0.00 1 $0.00
$1.25I $56,250.00
$0.25 $7,500.00
$63,750.00
$59,035.80 $59,035.80
$90,536.00 $90,536.00
$63,375.20 $63,375.20
$212,947.00
$1,182,057.00
PREPARED BY RPA 11/24/2014 Page 14
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SEGMENT 7 - PARKRIDGE DRIVE TO W RESERVE DRIVE
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
80
SY
Asphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
23
EA
Manhole - 60" Sanitary Sewer
7
3,980
LF
Pipe - Buried: 24" Sanitary Sewer Main
8
6,850
LF
Pipe - Buried: 27" Sanitary Sewer Main
9
300
LF
Pipe - Buried: 30" Sanitary Sewer Main
10
60
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
60
SY
Stabilization Fabric
12
20
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
10
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
20
TON
Asphalt Concrete Pavement: 4" Thick
15
61,500
SY
Vegetation Restoration
16
1
LS
20% Continaencv
d Costs
1
0
LS
2
332,100
SF
3
221,400
SF
fessional Fees
1
1
LS
2
1
LS
ILS
3
1
Parcel Acquisition
Easements (30' Wide
Permits (20' Wide)
;t Manz
n Engh
ruction
Subtotal Construction Costs
Subtotal Land Costs
Permittina. and Land Acauisition
Subtotal Professional Fees
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$63,700.00 $63,700.00
$25,500.00 $25,500.00
$3.00 $240.00
$800.00 $0.00
$250.00 $0.00
$6,500.00 $149,500.00
$92.00 $366,160.00
$105.00 $719,250.00
$117.00 $35,100.00
$30.00 $1,800.00
$2.00 $120.00
$25.00 $500.00
$35.00 $350.00
$90.00 $1,800.00
$2.00 $123,000.00
$297,400.00 $297,400.00
$1,784,420.00
$0.00 $0.00
$1.25 $415,125.00
$0.25 $55,350.00
$470,475.00
$288,770.10 $288,770.10
$178,442.00 $178,442.00
$124,909.40 $124,909.40
$592,121.50
$2,847,016.50
PREPARED BY RPA 11/24/2014 Page 15
Robert Peccia & Associates, Inc.
825 Custer Avenue ` Helena ` Montana ` (406) 447-5000
102 Cooperative Way, Suite 300 ` Kalispell ` Montana ` (406) 752-5025
Item
No. Quantity Unit
Unit
Description
RESERVE DRIVE TO PUMP
STATION #36
instruction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
800
SY
Asphalt Removal
4
2
EA
Manhole - 60" Sanitary Sewer
5
5,000
LF
Pipe - Buried: 10" Sanitary Sewer Force Main - C900 DR 18 PVC Pi
6
1,000
LF
Pipe - Directional Drilled: 10" Sanitary Sewer Force Main - HDPE Pi
7
8
EA
Plug Valve - 6"
8
8
EA
Plug Valve - 12"
9
1
EA
Existing Sewer Main Connection
10
580
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
540
SY
Stabilization Fabric
12
140
CY
Select Sub -Base Course - 3" Minus: 9" Thick
13
90
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
180
TON
Asphalt Concrete Pavement: 4" Thick
15
18,000
SY
Vegetation Restoration
16
0
LF
Concrete Curb and Gutter
17
1
LS
20% Continqencv
Subtotal Construction Costs
Land Costs
1 0 LS Parcel Acquisition
2 0 SF Easements
3 0 SF Permits
Subtotal Land Costs =
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 ILS IDesign Engineering
3 1 ILS lConstruction Engineering
Subtotal Professional Fees
TAL COSTS:
Engineer's Estimate
Jnit Price Total Pria
(Figures) (Figures)
$30,200.00
$30,200.00
$24,100.00
$24,100.00
$3.00
$2,400.00
$6,500.00
$13,000.00
$60.00
$300,000.00
$160.00
$160,000.00
$2,500.00
$20,000.00
$3,500.00
$28,000.00
$3,000.00
$3,000.00
$30.00
$17,400.00
$2.00
$1,080.00
$25.00
$3,500.00
$35.00
$3,150.00
$90.00
$16,200.00
$2.00
$36,000.00
$15.00
$0.00
$131,600.00
$131,600.00
$789,630.00
$0.00
$0.00 $0.00
$0.00 $0.00
$0.00
$23,688.90 $23,688.90
$78,963.00 $78,963.00
$55,274.10 $55,274.10
$157,926.00
$947,556.00
PREPARED BY RPA 11/24/2014 Page 16
West Side Interceptor
Preferred Route Assessment
Appendix 6 - Cost Estimates: Recommended Project
Robert Peccia & Associates Appendix
SUMMARY OF PROJECT COSTS
WEST SIDE INTERCEPTOR PROJECT
RECOMMENDED PROJECT
Updated 11-21-2014 by REM
Total
Fees/Costs
FORCEMAIN TO PUMP STATION
$1,370,076
SOUTH MERIDIAN PUMP STATION
$2,045,240
Subtotal =
$3,415,316
WEST SIDE INTERCEPTOR - GRAVITY COLLECTION SYSTEM
SEGMENT 1 - PUMP STATION TO BYPASS
$1,158,169
SEGMENT 2.1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
$3,104,708
SEGMENT 3 - TWO MILE DRIVE TO LOT 48 (WEST VIEW DRIVE)
$654,504
SEGMENT 4.1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek Subdivision)
$1,261,124
SEGMENT 5 - THREE MILE DRIVE TO PARKLAND (In Parkland)
$652,416
SEGMENT 6.1 - PARKLAND TO PARKRIDGE DRIVE (Within Drainage)
$749,727
Subtotal =
$7,580,648
Total Project Costs
$10,995,964
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
FORCEMAIN TO PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
5,600
SY
Asphalt Removal
4
2
EA
Manhole - 48" Sanitary Sewer
5
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
.(Trenching, Bedding, and Backfill Included in this Item
6
4,200
LF
Pipe - Buried: 12" Sanitary Sewer Force Main - C900 DR18 PVC Pipe
Pie placed in common trench
7
4,200
LF
Pipe - Buried: 20" Sanitary Sewer Force Main - C905 DR18 PCV Pipe
Pie placed in common trench
8
8
EA
JValve - 12"
9
4
EA
Valve - 20"
10
1
EA
Existing Sewer Main Connection
11
4,050
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
3,740
SY
Stabilization Fabric
13
940
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
630
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
1,240
TON
Asphalt Concrete Pavement: 4" Thick
16
0
SY
Vegetation Restoration
17
LF
Concrete Curb and Gutter
18
1
LS
20% Contingency
Subtotal Construction Costs
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements
3
0
SF
Permits
Subtotal Land Costs
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
IDesign Engineering
3 1
LS
lConstruction Engineering
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
ures (Fig) (Figures)
$43,600.00
$43,600.00
$34,900.00
$34,900.00
$3.00
$16,800.00
$4,000.00
$8,000.00
$65.00
$273,000.00
$20.00 1 $84,000.00
$40.00 1 $168,000.00
$2,500.00 $20,000.00
$3,500.00 $14,000.00
$3,000.00 $3,000.00
$30.00 $121,500.00
$2.00 $7,480.00
$25.00 $23,500.00
$35.00 $22,050.00
$90.00 $111,600.00
$2.00 $0.00
$15.00 $0.00
$190,300.00 $190,300.00
$1,141,730.00
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
$34,251.90 $34,251.90
$114,173.00 $114,173.00
$79,921.10 $79,921.10
$228,346.00
$1,370,076.00
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item
No. Quantity Unit
Unit
Description
SOUTH MERIDIAN PUMP STATION
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Site Work and Buried Piping
3
1
LS
Shoring, Dewatering, and Structural Excavation
4
1
LS
Pump Station Structure
5
1
LS
Pump Station Mechanical
6
1
LS
Pump Station HVAC
7
1
LS
Pump Station Electrical
8
1
LS
20% Contingency
Land Costs
1
1
LS
Parcel Acquisition
2
0
SF
Easements
3
0
SF
Permits
Professional Fees
1
1
LS
Project Management, Permitting, and Land
2
1
LS
Design Engineering
3
1 1
ILS
lConstruction Engineerina
n
Subtotal Land Costs
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
(Figur I (Figures)
$63,500.00 $63,500.00
$180,000.00 $180,000.00
$260,000.00 $260,000.00
$380,000.00 $380,000.00
$240,000.00 $240,000.00
$30,000.00 $30,000.00
$180,000.00 $180,000.00
$266,700.00 $266,700.00
$1,600,200.00
$100,000.00 $100,000.00
$0.00 $0.00
$0.00 $0.00
$100,000.00
$73,006.00 $73,006.00
$160,020.00 $160,020.00
$112,014.00 $112,014.00
$345,040.00
TAL COSTS: 1 $2,045,240.00
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figur I (Figures)
SEGMENT 1 - PUMP
STATION
TO BYPASS
IMobilization, Bonding and Submittals (5% Max)
Traffic Control
Asphalt Removal
$33,700.00
$13,500.00
$3.00
$800.00
$250.00
$7,000.00
$150.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$144,000.00
$0.00
$1.50
$0.30
$50,151.10
$86,420.33
$60,494.23
$33,700.00
$13,500.00
$1,700.00
$0.00
$0.00
$70,000.00
$535,500.00
$12,300.00
$1,893.33
$2,500.00
$2,450.00
$11,700.00
$34,960.00
$144,000.00
$864,203.33
$0.00
$85,500.00
$11,400.00
$96,900.00
$50,151.10
$86,420.33
$60,494.23
$197,065.67
$1,158,169.00
Construction Costs
1
1
LS
2
1
LS
3
567
SY
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
10
EA
Manhole - 72" Sanitary Sewer
7
3,570
LF
Pipe - Buried: 36" Sanitary Sewer Main
Imported Trench Backfill - 3" Minus Crushed Subbase
8
410
CY
9
947
SY
Stabilization Fabric
10
100
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
70
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
130
TON
Asphalt Concrete Pavement: 4" Thick
13
17,480
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
57,000
SF
Easements (30' Wide)
3
38,000
SIF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1
TOTAL COSTS:
LS
Construction Engineering
Subtotal Professional Fees =
Item
No.
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Quantity Unit
Unit
Description
SEGMENT 2-1 - BYPASS TO TWO MILE DRIVE (RAILS TO TRAILS)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
3,333
SY
Asphalt Removal
4
360
LF
Bore & Jack with 54" Steel Casing Pipe
5
265
LF
54" Steel Casing Pipe (by Open Cut)
6
16
EA
Manhole - 72" Sanitary Sewer
7
600
LF
Pipe - Buried: 12" Sanitary Sewer Main
8
6,570
LF
Pipe - Buried: 36" Sanitary Sewer Main
9
2,410
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
10
2,230
SY
Stabilization Fabric
11
560
CY
Select Sub -Base Course - 3" Minus: 9" Thick
12
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
13
740
TON
Asphalt Concrete Pavement: 4" Thick
14
22,620
SY
Vegetation Restoration
15
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
1 0
ILS
jParGeI Acquisition
2
1 102,000
ISF
jEasements (30' Wide)
3
1 78.500
ISF
IPermits (20' Wide)
Professional Fees
1 1 1 ILS jProject Management, Permitting, and Land Acquisition
2 1 1 ILS IDesign Engineering
3 1 1 ILS lConstruction Enqineerinq
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
(Figur I (Figures)
$93,600.00 $93,600.00
$37,400.00 $37,400.00
$3.00 $10,000.00
$950.00 $342,000.00
$370.00 $98,050.00
$7,000.00 $112,000.00
$71.00 $42,600.00
$160.00 $1,051,200.00
$30.00 $72,300.00
$2.00 $4,460.00
$25.00 $14,000.00
$35.00 $13,300.00
$90.00 $66,600.00
$2.00 $45,240.00
$400,600.00 $400,600.00
$2,403,350.00
$0.00 $0.00
$1.50 $153,000.00
$0.30 $23,550.00
$176,550.00
$116,238.00 $116,238.00
$240,335.00 $240,335.00
$168,234.50 $168,234.50
$524,807.50
$3,104,707.50
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana ' (406) 752-5025
Item Unit
No. Quantity Unit Description
Engineer's Estimate
Unit Price
(Figures)
Total Price
(Figures)
TO LOT 48 (WEST VIEW DRIVE) _
$19,800.00
$39,500.00
$3.00
$800.00
$250.00
$6,500.00
$135.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$90,900.00
$0.00
$1.00
$0.20
$16,362.60
$54,542.00
$38,179.40
$19,800.00
$39,500.00
$7,000.00
$0.00
$0.00
$32,500.00
$236,250.00
$50,700.00
$3,120.00
$9,750.00
$9,100.00
$46,800.00
$0.00
$90,900.00
$545,420.00
$0.00
$0.00
$0.00
$0.00
$16,362.60
$54,542.00
$38,179.40
$109,084.00
$654,504.00
SEGMENT 3 - TWO MILE DRIVE
Construction Costs
1
1
LS
IMobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
2,333
SY
Asphalt Removal
4
LF
Bore & Jack with 48" Steel Casing Pipe
5
LF
48" Steel Casing Pipe (by Open Cut)
6
5
EA
Manhole - 60" Sanitary Sewer
7
1,750
LF
Pipe - Buried: 30" Sanitary Sewer Main
Imported Trench Backfill - 3" Minus Crushed Subbase
8
1,690
CY
9
1,560
SY
Stabilization Fabric
10
390
CY
Select Sub -Base Course - 3" Minus: 9" Thick
11
260
CY
Crushed Base Course - 3/4" Minus: 6" Thick
12
520
TON
Asphalt Concrete Pavement: 4" Thick
13
SY
Vegetation Restoration
14
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
0
LS
Parcel Acquisition
2
0
SF
Easements (30' Wide)
3
0
SIF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3 1 LS
TOTAL COSTS:
Construction Engineering
Subtotal Professional Fees =
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Engineer's Estimate
Item Unit Unit Price Total Price
No. Quantity Unit Description (Figures) I (Figures)
SEGMENT 4-1 - LOT 48 TO THREE MILE DRIVE (Through Aspen Creek
Construction Costs
1 1 LS Mobilization, Bonding and Submittals (5% Max)
2 1 LS Traffic Control
3 3,400 SY Asphalt Removal
4 1 EA Abandon Existing Lift Station
5
LF
Bore & Jack with 48
13
2,460
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
14
3,400
SY
Stabilization Fabric
15
570
CY
Select Sub -Base Course - 3" Minus: 9" Thick
16
380
CY
Crushed Base Course - 3/4" Minus: 6" Thick
17
750
TON
Asphalt Concrete Pavement: 4" Thick
18
3,230
SY
Vegetation Restoration
19
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1
1
LS
Parcel Acquisition
2
21,000
SF
Easements (30' Wide)
3
14,000
SF
Permits (20' Wide)
Subtotal Land Costs =
Professional Fees
1
1
LS
Project Management, Permitting, and Land Acquisition
2
1
LS
Design Engineering
3
1
LS
Construction Engineering
Subtotal Professional Fees
$33,300.00 $33,300.00
$66,500.00 $66,500.00
$3.00 $10,200.00
$40,000.00 $40,000.00
$800.00
$0.00
$250.00
$0.00
$80.00
$8,000.00
$1,200.00
$34,800.00
$5,000.00
$35,000.00
$6,500.00
$52,000.00
$71.00
$134,900.00
$142.00
$174,660.00
$30.00
$73,800.00
$2.00
$6,800.00
$25.00
$14,250.00
$35.00
$13,300.00
$90.00
$67,500.00
$2.00
$6,460.00
$154,300.00
$154,300.00
$925,770.00
$100,000.00 $100,000.00
$0.70 $14,700.00
$0.15 $2,100.00
$116,800.00
$61,173.10 $61,173.10
$92,577.00 $92,577.00
$64,803.90 $64,803.90
$218,554.00
$1,261,124.00
MAXRoberteccia &Associates, Inc.
825 Custer Avenue 'Helena 'Montana ' (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana ' (406) 752-5025
Item Unit
No. Quantity Unit Description
Engineer's Estimate
Unit Price
(Figures)
Total Price
(Figures)
DRIVE TO PARKLAND (In Parkland)
IMobilization, Bonding and Submittals (5% Max)
Traffic Control
Asphalt Removal
Abandon Existing Lift Station
Bore & Jack with 48" Steel Casing Pipe
48" Steel Casing Pipe (by Open Cut)
Manhole - 60" Sanitary Sewer
$20,600.00
$20,600.00
$3.00
$30,000.00
$800.00
$250.00
$6,500.00
$71.00
$125.00
$30.00
$2.00
$25.00
$35.00
$90.00
$2.00
$90,600.00
$0.00
$1.25
$0.25
$16,310.40
$54,368.00
$38,057.60
$20,600.00
$20,600.00
$600.00
$60,000.00
$80,000.00
$0.00
$32,500.00
$31,950.00
$176,250.00
$4,500.00
$280.00
$1,250.00
$1,050.00
$4,500.00
$19,000.00
$90,600.00
$543,680.00
$0.00
$0.00
$0.00
$0.00
$16,310.40
$54,368.00
$38,057.60
$108,736.00
SEGMENT 5 - THREE
MILE
Construction Costs
1
1
LS
2
1
LS
3
200
SY
4
2
EA
5
100
LF
6
LF
7
5
EA
8
450
LF
Pipe - Buried: 12" Sanitary Sewer Main
9
1,410
LF
Pipe - Buried: 30" Sanitary Sewer Main
10
150
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
11
140
SY
Stabilization Fabric
12
50
CY
Select Sub -Base Course - 3" Minus: 12" Thick
13
30
CY
Crushed Base Course - 3/4" Minus: 6" Thick
14
50
TON
Asphalt Concrete Pavement: 4" Thick
15
9,500
SY
Vegetation Restoration
16
1
LS
20% Contingency
Subtotal Construction Costs =
Land Costs
1 0
2 0
3 0
Professional Fees
1 1
2 1
3 1
TOTAL COSTS:
LS
Parcel Acquisition
SF
Easements (30' Wide)
SF
Permits (20' Wide)
Subtotal Land Costs =
LS
Project Management, Permitting, and Land Acquisition
ILS
Design Engineering
ILS
Construction Engineering
Subtotal Professional Fees =
191$652,416.00
Robert Peccia & Associates, Inc.
825 Custer Avenue *Helena *Montana . (406) 447-5000
102 Cooperative Way, Suite 300 . Kalispell . Montana . (406) 752-5025
Item Unit
No. Quantity Unit Description
SEGMENT 6-1 - PARKLAND
TO PARKRIDGE DRIVE (Within Drainage)
Construction Costs
1
1
LS
Mobilization, Bonding and Submittals (5% Max)
2
1
LS
Traffic Control
3
1,500
SY
Asphalt Removal
4
1
EA
Abandon Existing Lift Station
5
LF
Bore & Jack with 48" Steel Casing Pipe
6
LF
48" Steel Casing Pipe (by Open Cut)
7
5
EA
Manhole - 60" Sanitary Sewer
8
1,050
LF
Pipe - Buried: 8" Sanitary Sewer Main
10
1,600
LF
Pipe - Buried: 30" Sanitary Sewer Main
11
1,090
CY
Imported Trench Backfill - 3" Minus Crushed Subbase
12
1,000
SY
Stabilization Fabric
13
250
CY
Select Sub -Base Course - 3" Minus: 9" Thick
14
170
CY
Crushed Base Course - 3/4" Minus: 6" Thick
15
330
TON
Asphalt Concrete Pavement: 4" Thick
16
8,480
SY
Vegetation Restoration
17
1
LS
20% Contingency
Sub
Land Costs
1
1 1
ILS
jParGeI Acquisition
2
1 46.200
ISF
lEasements (30' Wide)
n
Subtotal Land Costs
Professional Fees
1 1 LS Project Management, Permitting, and Land Acquisition
2 1 LS Design Engineering
3 1 LS Construction Engineering
Subtotal Professional Fees
Engineer's Estimate
Unit Price Total Price
ures (Fig) (Figures)
$19,800.00
$19,800.00
$19,800.00
$19,800.00
$3.00
$4,500.00
$30,000.00
$30,000.00
$800.00
$0.00
$250.00
$0.00
$6,500.00
$32,500.00
$62.00
$65,100.00
$117.00
$187,200.00
$30.00
$32,700.00
$2.00
$2,000.00
$25.00
$6,250.00
$35.00
$5,950.00
$90.00
$29,700.00
$2.00
$16,960.00
$90,500.00
$90,500.00
$542,960.00
$0.00 $0.00
$1.25 $57,750.00
$0.25 $7,700.00
$65,450.00
$49,013.80 $49,013.80
$54,296.00 $54,296.00
$38,007.20 $38,007.20
$141,317.00
$749,727.00
West Side Interceptor
Preferred Route Assessment
Appendix C - Preliminary Profile Drawings
(Attached Separately)
Robert Peccia & Associates Appendix