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1. Draft Interlocal Agreement - Cottonwood EstatesINTERLOCAL AGREEMENT CITY OF KALISPELL FLATHEAD COUNTY, MONTANA fr for COTTONWOOD ESTATES SUBDIVISION WHEREAS, Title 7, Chapter 11, Part 1, M.C.A., known as the "lnterlocal Cooperation Act," permits governmental units to make the most efficient use of their powers by enabling them to cooperate with other local governmental units on a basis of mutual advantage and thereby to provide services and facilities in a manner and pursuant to forms of governmental organization that will accord best with geographic, economic, population, and other factors influencing the needs and development of local communities; and WHEREAS, said Act provides that an interlocal agreement may be authorized and approved by the governing body of each party to said contract; and WHEREAS, XXX, owner of that certain real property located outside municipal boundaries and in Flathead County, Montana and more particularly described in Exhibit "A", attached hereto and fully incorporated herein by this reference, and hereafter referred to as "Cottonwood Estates", seeks to develop said property to an urban density and therefore desires the services of a municipal sewer and community water supply; and WHEREAS, it is in the best interests of the Flathead County and the City of Kalispell and their citizens, that water quality of the shared aquifer be protected by the connection to and utilization of a municipal sewer by Cottonwood Estates; and WHEREAS, Cottonwood Estates is located within such proximity to the Evergreen Sewer District that it may be served by the Evergreen Sewer District which is a customer of the City of Kalispell municipal sewer system and contractually provided with an allotment of sewer capacity and which conveys its sewerage to the City of Kalispell municipal sewer system; and WHEREAS, the City of Kalispell may agree to allow Cottonwood Estates to convey its sewage through the Evergreen Sewer District conveyance system without requiring the Evergreen Sewer District to assign such sewerage to its own contractual capacity; and WHEREAS, it is in the best interests of the City of Kalispell that developments such as Cottonwood Estates that utilize the utilities of the City be developed to urban standards that are compatible to those standards generally used by the City. NOW THEREFORE, BE IT RESOLVED by the City Council of the City of Kalispell and the Commission of the County of Flathead, State of Montana, each a local government agency of the State of Montana, that: INTERLOCAL AGREEMENT COTTONWOOD ESTATES Page - 1 of 5 Pursuant to MCA 7-11-104, the City of Kalispell and Flathead County agree it to their mutual advantage to adopt this Interlocal Agreement as follows: Section 1: Recitals The City of Kalispell is a municipality of the State of Montana located within Flathead County and organized pursuant to Title 7 Chapter 3 Part 43. The City owns, maintains and provides certain utility services, including sanitary sewer and water, to its city residents. The City may legally provide its utilities to serve areas outside of the City for consideration and if it is deemed to be in the best interests of the City and its residents. Flathead County is a duly formed County government of the State of Montana created by the authority of the Montana State Legislature. Flathead County possesses the exclusive statutory authority to review and approve the subdivision request of Cottonwood Estates and to enforce any conditions placed thereon. The County may consult with the City of Kalispell or any other agency providing services to the development in this regard. The area covered by this Interlocal Agreement is defined by the boundaries of that real property known as Cottonwood Estates and more particularly described by Exhibit "A", attached hereto. Section 2: Purpose It is the purpose of this Agreement to delineate the provision of services and land use planning responsibilities of the local governments with respect to the Cottonwood Estates Subdivision, and the development, implementation, and enforcement of the conditions for subdivision approval. Section 3: Administration of Land Use Controls 3.01. No separate legal entity is established by this Interlocal Agreement. 3.02. The City and the County agree to work cooperatively to provide a reasonable opportunity for Cottonwood Estates to be developed to an urban density, to be served by one or more _municipal utilities and to be developed to urban standards as outlined in Exhibit B attached to this agreement. 3.03. Application and Review Process 3.03.01 The Flathead County Planning and Zoning Office shall notify the Tri- City Planning Office that Cottonwood Estates has requested urban development and connection to the Evergreen sewage collection system. The Tri-City Planning Office shall immediately schedule the matter before the Kalispell Site Review Committee and following their action, respond to the Flathead County Planning INTERLOCAL AGREEMENT COTTONWOOD ESTATES Page - 2 of 5 and Zoning Office with recommended Conditions of Approval and applicable "Urban Development Standards" requested by the City of Kalispell within 10 working days of the Site Review meeting. The "Urban Development Standards" shall be as set f reference in Exhibit `B" attached hereto and fully incorporated herein 3.03.02 The Flathead County Planning and Zoning Office shall prepare the Staff Report and recommended conditions of approval for transmittal and public hearing by the Flathead County Planning Board. Said transmittal shall be made to the Planning Board at least 14 days prior to the hearing. 3.03.03 The Flathead County Planning and Zoning Office shall verbally inform the Tri-City Planning Office as to the Planning Board Recommendation within 3- 5 days of the planning board hearing and action. A copy of the transmittal letter to the Flathead County Commissioners shall be forwarded to the Tri-City Planning Office within 10 days of the Public Hearing. 3.03,04 The Flathead County Commissioners will not schedule the project for final decision for 15 days after transmittal to afford the City of Kalispell an opportunity to comment on the action recommended by the County Planning Board. 3.03.05 The City shall comment within the 15-day period to County Commissioners concerning the Planning Board recommendation either supporting the recommendation or asking for re -consideration of key points that may have been recommended by the Planning Board for modification or elimination. 3.03,06 The Flathead County Planning and Zoning Office shall send notice of the action taken by the County Commissioners to the Tri-City Planning Office. 3.03.07 The Tri-City Planning Office shall forward to the City Manager and the City Council the Commissioners' final action for determination if the subdivision will receive a Resolution to Provide Certain Municipal Services from the City of Kalispell. 3.03.08 In the event Flathead County grants the subdivision approval with conditions that are inclusive of the Urban Standards as set forth in Exhibit `B", the City of Kalispell shall issue a Resolution to Provide Certain Municipal Services. The developer of Cottonwood Estates will execute a waiver of protest to annexation for the subject property and enter into a developer's agreement with the City of Kalispell and the Evergreen Sewer District for extension of municipal sewer or other services as deemed appropriate and that is consistent with the conditions for subdivision approval issued by Flathead County. 3.03.09 Review and enforcement of the conditions for subdivision approval shall be the duty of Flathead County. Any bonding requirements imposed by the INTERLOCAL AGREEMENT COTTONWOOD ESTATES Page - 3 of 5 Developer's Agreement with the City of Kalispell or the Evergreen Sewer District shall be subject to the civil enforcement provisions of that Agreement. t,. Section 4: Modification lf� r 4.01. This Agreement shall become effective upon approval by the Council of the City of Kalispell and the County Commission of Flathead County. 4.02. This agreement may be changed with additions and/or deletions upon mutual written consent of the parties hereto, and, if necessary, with the written consent of the developer of Cottonwood Estates. Section 5: Term of Agreement This Agreement will be effective from signature date by both parties and will be effective for a period of the life of the approved preliminary plat or 3 years which ever is longer. IN WITNESS WHEREOF, the local governments have caused this instrument to be duly executed by their proper officers as follows: CITY OF KALISPELL APPROVED BY THE CITY COUNCIL OF THE CITY OF KALISPELL on the `day of July, 2004, authorizing the Mayor to execute the Interlocal Agreement. ATTEST: Theresa White City Clerk (SEAL) INTERLOCAL AGREEMENT COTTONWOOD ESTATES Pamela B. Kennedy Mayor Page - 4 of 5 COUNTY OF FLATHEAD, STATE OF MONTANA APPROVED BY THE COUNTY COMMISSION OF FLATHEAD COUNTY, STATE OF MONTANA on the day of July, 2004. `f�lff r Howard W. Gipe, Chairman Robert W. Watne Gary Hall INTERLOCAL AGREEMENT COTTONWOOD ESTATES Page - 5 of 5 EXHIBIT B URBAN DESIGN STANDARDS DS-01 Design and Development Requirements Design Requirements. All water, sanitary sewer, storm drainage and roadway systems necessary to provide service to and within a development shall be constructed at the Developer's expense and shall be designed by a Professional Engineer licensed in the State of Montana. Plans, specifications and design reports shall bear the seal of the Design Engineer in responsible charge of the design. Water and sanitary sewer system designs shall be reviewed concurrently by the approving utility Engineer and the Montana Department of Environmental Quality, with approval of both required. Storm drainage and roadway designs shall be submitted to and approved by the Engineer. All required approvals shall be obtained prior to beginning construction. Design calculations and testing results shall be submitted to the approving Engineer as required or requested. Development Requirements. All subdivisions and developments shall be in compliance with approved subdivision regulations, and these standards for Urban Design. It shall be the responsibility of the Developer to construct all roadways and utilities from the existing facilities to the far property line of the development or such other point within the development that may be specified by the Engineer. All utilities shall be within a public right-of-way or easement to permit free and unobstructed access. It is the Developer's responsibility to obtain and provide all easements and right-of-ways necessary to extend roadways and utilities to the far property line of the development. There shall be reserved along the front and side lot lines of each residential lot a five (5) foot wide utility and drainage easement along, contiguous, and adjacent to the lot line. There shall be reserved along the rear lot fine of each residential lot a ten (10) foot wide utility and drainage easement along, contiguous, and adjacent to the rear lot line. All new utilities shall be placed underground. Except for sewer and water, underground utilities, if placed in the street right-of-way or easement, shall be located between the back of the sidewalk and the easement line. No underground utilities shall be placed in the boulevard between the back of the curb and the sidewalk. Site plans, grading plans, and elevations used for infrastructure work shall be based on the North American Vertical Datum 1988. DS-02 Water Systems. Water systems shall be designed, constructed, and tested in accordance with the current editions of circular WQB 1 - Montana Department of Health and Environmental Sciences - Standards for Water Works, The Montana Public Works Standard Specifications and these Urban Design Standards or other applicable standards of the utility service provider. In addition, the following shall apply to the design of all Water Mains All water main extensions will require the Design Engineer to submit a written report to the Utility which addresses the fire and domestic flow requirements. The report shall include flow test results at the nearest hydrant to the development which shows the static pressure at zero flow from the hydrant and the residual pressure with available flow from the hydrant. The Utility will perform the required hydrant flow testing and will provide the test data to the Design Engineer, at no cost, if so requested. Isolation Valves. Isolation valves shall be installed at all intersections. Distance between isolation valves shall not exceed 500 feet. Fire Flow. Fire flow requirements shall be determined by the Fire Department. Minimum Pipe Sizes. The minimum diameter of all mains shall be eight (8) inches unless a smaller diameter is approved by the Utility. Fire hydrant runs less than fifty (50) feet in length and small looped systems that meet fire flow requirements may be permitted with six (6) inch mains. Pipe Material. Water main piping from six (6) to twelve (12) inches in diameter shall be Class 150 PVC pipe conforming to AWWA C-900 Standards. All water main piping larger than twelve (12) inches in diameter shall conform to AWWA C-905 Standards. Water Service Lines. Structures containing two or more residences under separate ownership, such as townhouses or condominiums, shall have separate service lines, service valves and meters for each residence. Structures containing two or more residences, offices or businesses that are rental units under common ownership may have one service line, valve and meter for all occupants within a single structure. Gate Valves. Gate valves shall be Mueller Resilient Seat Gate Valves, or an approved equal, conforming to AWWA C-509 Standards. Butterfly Valves. Butterfly valves shall be Mueller Lineseal Butterfly Valves, or an approved equal, conforming to AWWA C-504 Standards. All valves over 12 inches in diameter shall be butterfly. Fire Hydrants. Fire hydrants shall be Red Mueller Super Centurion Fire Hydrants conforming to AWWA C-502 Standards. The placement of all fire hydrants shall be subject to the approval of the Fire Chief. Hydrant spacing shall not exceed; 500 feet along streets in residential areas, 300 feet in commercial areas and 150 to 200 feet in industrial areas. Fire hydrants shall be covered until placed in service. Service Clamps. Service clamps for PVC water mains shall be H-13000 Series Mueller Brass, or an approved equal, designed for use with AWWA C-900 PVC pipe. Corporation Valves and Service Valves. Corporation valves and service valves shall be Mueller 300 Series ball valves, or an approved equal. Service Fittings, Service fittings shall be Mueller Insta-Tite or 110 Series compression fittings, or an approved equal. Curb Boxes. Curb boxes shall be Mueller H-10308 or an approved equal, cast iron extension type with arch pattern base, 1 1/2 inch I.D. upper section, minimum length 6 1/2 feet, equipped with a stationary rod and a pentagon brass plug. Service Pine. Service pipe up to three (3) inches in diameter shall be polyethylene pipe conforming to AWWA C-901 Standards. Service pipe four (4) inches or larger in diameter shall be Class 150 PVC pipe, conforming to AWWA C-900 Standards. Tanning Sleeves. Tapping sleeves shall be Romac SST III or an approved equal. Ductile Iron Fittings. Ductile iron fittings shall be Class 350 SSB fittings conforming to AWWA C-153 Standards. Valve Boxes. Main line valve boxes shall be designed for slip type adjustment. Mechanical Joint Restraints. Megalugs or similar mechanical joint restraining devices maybe used. Blow -offs. Valved blow -offs shall be installed at all main dead -ends that do not have a fire hydrant. Warning Tape. Detectable warning tape shall be a minimum of 5 mils thick, three inches wide and conform to APWA colors. Toner Wire. All mains shall be laid with 14 gauge stranded copper toner wire. DS-03 Sanitary Sewer Systems. Sanitary sewer systems shall be designed, constructed and tested in accordance with the current editions of WQB 2 Montana Department of Environmental Quality - Design Standards for Wastewater Facilities Montana Public Works Standard Specifications and these Urban Design Standards or other applicable standards of the utility service provider. The following shall apply to the design of all sanitary sewers: Minimum design contributing wastewater flows shall be: residential, 87 gpd/capita; commercial, 20 gpd/employee; peak inflow/infiltration, 300 gpd/acre; and wet weather infiltration, 100 gpd/acre. The Utility may require sulfide generation analysis. If dissolved sulfide is likely to exceed 0.2 mg/L, non- corrosive linings may be required in addition to special lift station design. Watertight manhole covers shall be required in all locations where flooding may occur. Gravity Sewers. Unless waived by the Utility, the Design Engineer shall submit a written report for all improvements or additions to the sanitary sewer system. The report shall assess the ability of the existing collection system to handle the peak design flow from the project and the impact on the Wastewater Treatment Plant. Sewage Lift Station. A written report shall be submitted to the Utility by the Design Engineer for any project that requires a new sewage lift station or will contribute inflow to an existing sewage lift station. The report for the new sewage lift station shall contain, but not be limited to, the following: - a description of the proposed wet well, pumping system and force main. - the capacity of the recommended pumps and potential for upgrading. - a map showing the potential lift station service area. - the average and peak design flows for the proposed project and for the potential service area. - the hydraulic capacity of the force main. - the reserve capacity of the lift station when the proposed project is on line at full capacity. - the pump run and cycle times for the average and peak design flows. - strategies for improvements which may be necessary to accommodate future sewer extensions (i.e. increased storage, pumping or auxiliary power capacity). - a statement of the pump selection process, including the Engineer's calculations for the total dynamic head, total discharge head, net positive suction head and other pertinent pump selection criteria. - the designed pump operating curve plotted on a manufacturer's pump performance chart with the designed operating point clearly identified. The report for a project that will contribute inflow to an existing sewage lift station shall contain, but not be limited to, the following: - a description of the existing wet well, pumping system and force main. - the capacity of the existing pumps and potential for upgrading. - a map showing the potential lift station service area. - a list of the existing users and their average design flows. - the existing peak design flow and reserve capacity. - the pump run and cycle times for the existing average and peak design flows. - the hydraulic capacity of the force main. - a list of the proposed users and their average design flows. - the proposed average and peak design flows to the lift station. - the reserve capacity of the lift station with the proposed project on line at full capacity. - the pump run and cycle times for the proposed average and peak design flows. - recommendations for improvements, if necessary to enable the lift station to serve the proposed project. Unless otherwise approved by the Utility, new pumping systems shall be duplex, above ground, self - priming, suction lift type and the pumps shall be equal to that manufactured by the Gorman Rupp Company. Unless otherwise approved by the Utility, an emergency power supply will be required for all lift stations. Upon request from the Utility, the Design Engineer shall submit a list of three lift stations of the type proposed which have been in operation at least five years. The Utility reserves the right to accept or reject the proposed lift station. An alarm system shall be provided that is capable of detecting power interruption, high water and high motor temperature conditions. The alarm signals shall be directed to an on site alarm monitoring and telephone dialer system. The alarm monitoring and telephone dialer system shall be an Antx, Inc., Dialog Elite, B-Channel auto dialer. An hour meter, suction pressure gauge tap and valve, and discharge pressure gauge tap and valve, are required on each pump. Amperage meters are required on each leg of the electrical wiring. Controls shall include a pump run alternator. The electrical power supply shall contain lightning protection. All lift station facilities shall include a 6 ft. chain link security fence with a ten foot wide gate with two five foot leaves. Minimum Pipe Size. The minimum diameter of any gravity sanitary sewer main shall be eight (8) inches. Minimum Depth. The minimum depth of gravity sewer mains shall be four (4) feet to the top of pipe. The minimum depth of sewage force mains shall be six (6) feet to the top of pipe. Sanitary Sewer Service Lines. Structures containing two or more residences under separate ownership, such as townhouses or condominiums, shall have separate sewer service lines for each residence. Structures containing two or more residences, offices or business that are rental units under common ownership may have one service line for all occupants within a single structure. The terminal end of sanitary sewer services at undeveloped lots shall be marked with a 2" x 4" timber extending from the sewer service plug to a minimum of two feet above the finished ground elevation. In addition, detectable warning tape shall be placed around the sewer service plug and placed adjacent to the 2" x 4" timber to the finished ground elevation. Quality of Sewage. No development shall introduce any sewage into the Sanitary Sewer System that is not consistent with the requirements of Kalispell City Ordinance 854, or as subsequently amended. No storm water shall discharge to any sanitary sewer. Gravity Main Cleanouts. Gravity main cleanouts shall not be allowed unless otherwise approved by the Engineer. Sanitary Sewer Manhole Ring and Cover. The sanitary sewer manhole ring and cover shall be Inland Foundry 772A, Olympic Foundry MH37A or approved equal. The cover shall be marked Sewer. Warning Tape for Force Mains. Detectable warning tape shall be a minimum of 5 mils thick, three inches wide and conform to APWA colors. Toner Wire for Force Mains. All force mains shall be laid with 14 gauge stranded copper toner wire. Oil/Water Separators. Automotive repair facilities and paint shops, dealerships, gas stations, equipment degreasing areas, and other facilities generating wastewater with oil and grease content are required to pre -treat these wastes before discharging to the sanitary sewer system. Pre-treatment requires that an oil/water separator be installed and maintained on site. Oil/water separators for commercial/industrial processes must be sized on a case -by -case analysis of wastewater characteristics. Typically a minimum capacity of 750 gallons is required for small gas stations, auto repairs, and light commercial sites; 1500 gallon capacity for large-scale truck washing and steam cleaning facilities. The ultimate discharge must be directed to the sanitary sewer system. All units regardless of size shall be fitted with a standard final -stage sample box and spill -absorbent pillows. Oil/water separators shall be commercially manufactured and sized for the intended discharge rates for the facility where it is to be installed. DS-04 Storm Drainaee Systems. Storm Water Design Report. For all developments containing more than 10,000 square feet, a storm water report shall be submitted for approval. The storm water report shall be prepared by a professional engineer. The storm water report shall contain the storm water calculations and a discussion of the design rationale used for the development site. In addition, the storm water report shall address the measures taken to meet the requirements of the Montana Pollution Discharge Elimination System (MPDES) MS4 Phase II Storm Water Management Plan for the City of Kalispell, as it applies to the development site. Storm Water Collection and Transportation. Storm water within public street rights -of -way shall be carried within the curb and gutter or within underground piping and appurtenances. No storm water shall traverse the paved area of any through street. Developments upstream and adjacent to existing storm water piping shall be designed to discharge the storm water runoff directly into the existing piping. Montana Department of Transportation precipitation values for this area are to be used. These values along with related Tables and Figures can be found in the MDT Hydraulics Manual at their FTP Site; ftp.mdt.state.mt.us. The Rational Method shall be used for calculating runoff from areas of 10 acres or less. For larger areas, the Design Engineer should consult with the approving Engineer to determine the appropriate method. A 10-year design storm shall be used for calculating peak runoff flows. The time of concentration shall be calculated for the specific site to determine the discharge rate. Storm Water Detention. For storage calculations, the 10-year, 6-hour storm shall be used. The difference between the pre -development and post -development 10-year, 6-hour volume shall be used for on -site detention basin design. A low-level outlet structure shall be provided with a discharge rate no greater than the 10-year pre -development rate. An overflow spillway or structure shall be provided for larger events and shall be designed to the 100-year, 6-hour peak discharge rate for the post -development condition. Curbs and Gutters. Streets and roads shall be designed to ensure proper drainage. Curbs and gutters shall be required in all subdivisions. Curbs and gutters of adjoining properties shall be extended to match the new curb and gutter. Culverts, Bridges and Drainage Facilities. Culverts or bridges of adequate size shall be provided and installed by the developer where drainage channels intersect any street right-of-way or easement. All culverts shall extend at least across the entire width of the base of the fill; the amount of backfill to be placed over the culvert and a culvert's capacity shall be determined by a professional engineer. Culverts larger than 18" shall have flared ends. The minimum pipe size shall be 12". The developer shall provide suitable drainage facilities for any surface runoff affecting the subdivision. These facilities shall be located in street rights -of -way or in perpetual easements of appropriate width and are subject to approval by the Engineer. Each culvert or drainage facility shall be designed to accommodate existing runoff from upstream drainage areas. Storm Water Discharge. Drainage systems shall not discharge into any sanitary sewer facility. Runoff that is discharged directly into a stream shall meet all applicable standards. All discharge permits shall be obtained by the developer prior to the start of any construction. Revegetation. All areas disturbed during development of the subdivision shall be immediately re - vegetated in accordance with these standards. Manhole Spacing. The maximum spacing between storm manholes shall be four hundred (400) feet. Minimum Pipe Size. The minimum diameter of any gravity storm drainage main shall be 12" inches. Laterals may be 8 inch. Minimum Pipe Slope. The pipe slope shall be designed to provide minimum velocity of 3 feet per second. Storm Drain Manhole Ring and Cover. The storm drain manhole ring and cover shall be Inland Foundry 772A, Olympic Foundry 37A, or approved equal. The cover shall be marked Storm. Storm Drain Inlets. Storm drain inlets shall be as follows: Straight (SD-6) and Curb & Gutter (SD-4) Applications ........ Inland Foundry 504-2, Olympic Foundry SM49B, or approved equal Drive Over Curb & Gutter (SD-5) Applications ..................Inland Foundry 501, Olympic Foundry SM44, or approved equal DS-05 Roadways and Walkways. Roadway systems including private roadways shall be designed, signed and constructed in accordance with these Urban Design Standards, the Montana Public Works Standard Specifications, the current Manual on Uniform Traffic Control Devices and approved Subdivision Regulationsl. All roads within a proposed subdivision shall be designed by a professional engineer and approved by the Engineer. Upon completion of roadway construction, a professional engineer shall certify that the construction meets the requirements of these standards. Traffic Analysis. The Engineer may require developments contributing three hundred (300) or more vehicle trips per day to the Street System to have a Traffic Analysis submitted by a Traffic Engineer. Such analysis shall indicate the expected increase in traffic movement on existing roadways serving the development and shall determine existing traffic conditions on roadways to be impacted by the development. Cul-De-Sacs. All dead-end streets shall terminate in an approved cul-de-sac. Where future street extension is proposed, a temporary cul-de-sac of adequate size as approved by the Fire Chief and Engineer shall be provided. Unless otherwise approved by the Engineer, roadways that terminate at a cul-de-sac shall have a maximum length of six hundred (600) feet. The cul-de-sac radii shall be fifty five feet to the back of the curb and sixty six feet to the right-of-way. Horizontal Alignment. Horizontal alignment of streets must ensure adequate sight distances. When street center lines deflect more than five (5) degrees, construction shall be made by horizontal curves. Collector and Arterial Streets. Location of collector and arterial streets shall comply with the Kalispell City -County Master Plan or any other major street and highway plan adopted by the Flathead County Board of County Commissioners and/or the City of Kalispell. Arterial Street Sub base. The sub base for arterial streets shall be crushed stone in accordance with Montana Public Works Standard Specifications Section 02234. Traffic Control Signs, Street Name Signs and Street Names. The Developer shall provide and install the necessary Traffic Control Signs in accordance with the Manual on Uniform Traffic Control Devices. Street name signs shall be installed at each intersection. All proposed street names shall be submitted for approval prior to the preliminary plat submittal. Sidewalks. All developments shall have sidewalks which will allow pedestrians to safely travel from any part of the development to the boundaries of the development, Developments abutting existing or proposed roadways will be required to have sidewalks within the public right-of-way and parallel to the roadways. The minimum width of a sidewalk shall be five (5) feet. Sidewalks are required on both sides of the street in all residential and commercial subdivisions. Residential sidewalks shall be separated from the street by a five foot wide boulevard or open space. c Road Design Standards for Local Subdivision Streets DESIGN STANDARDS ARTERIAL COLLECTOR LOCAL Minimum Right -of -Way I Pavement Width Maximum Grade Cul-de-sac turnaround: 80FT As approved by Engineer a. Back of curb radius 7% b. Minimum right-of-way radius C. Maximum length' 6011. 34 ft. 7% 60ft. 2811. 7% 55 ft. 66 ft. 600 ft. Terrain and design constraints may dictate greater right-of-way; all road disturbances must be accommodated within the right -of --way. 2 Distance to be measured from the centerline of the intersection to the center point of the culde- sac. Street Intersections. Street intersections shall meet the following requirements: 1. Streets shall intersect at 90' angles, if topography permits but in no case shall the angle of intersection be less than 75' for a minimum distance of 60 feet as measured along the centerline. 2. No more than two streets may intersect at one point. 3. Two streets meeting a third street from opposite sides shall meet the same point, or their centerlines shall be offset at least 125 feet for local roads and 300 feet for collectors. 4. Intersections of local streets with major arterials shall be kept to a minimum. 5. Maximum grade of approach to any intersection shall not exceed 2% for a distance of 60 feet as measured from edge of travel ways to provide for adequate starting, stopping and stacking distances. 6. The minimum back of the curb radii at street intersection shall be 20 feet. 7. Intersections shall be designed for a minimum sight distance of 150 feet. A minimum sight distance of 200 feet shall be required in all vertical and horizontal curves. DS-06 Driveways. The nearest edge of any residential driveway shall be not less than thirty five (35) feet from the edge of the pavement to the nearest intersecting street. All new driveway locations shall be reviewed and approved by either the Site Development Review Committee (Development Submittals) or the Engineer (Application for Driveway Construction) prior to beginning construction. DS -07 Placement of Utilities. All new utilities shall be placed underground. Except for sewer and water, underground utilities, if placed in the street right-of-way or easement, shall be located between the back of the sidewalk and the easement line. No underground utilities shall be placed in the boulevard between the back of curb and the sidewalk. All applicable laws, rules and regulations of appropriate regulatory authority having jurisdiction over utilities shall be observed. Street Lighting. Street lights shall be required on all streets within the subdivision. Proposed street lighting construction shall in all respects conform to the technical criteria for analysis and design of street lighting as set forth in this section. Plans shall be submitted to the Engineer for approval and shall include all information as may be required or described hereinafter. Plans shall be submitted concurrently with the street plans. Determination of light source size, type, mounting height and spacing shall at least conform to the requirements outlined below based upon the required illuminance levels when the luminaires are at their lowest output. This condition occurs just prior to lamp replacement and luminaire washing. Formulas calculating average illuminance levels shall include light loss factors relating to lamp lumen depreciation and luminaire dirt depreciation. The minimum average maintained illumination shall be 0.3 foot-candles at the outer edges of the sidewalks. The uniformity ratio shall not exceed 6:1. The control of candlepower distribution shall be a true ninety degree cutoff. All calculations shall conform to the standard of practice of the Illuminating Society of North America and can be done manually, electronically, or derived from tables and data provided by the manufacturer. The electrical system shall conform to the standards as listed in the American National Standard Practice for Roadway Lighting, the National Electrical Code (NEC), the National Electrical Safety Code (NESC), the IES Lighting Handbook, Illuminating Engineering Society of North America, and the requirements of the Flathead Electric Co - Op, Inc. Utility Easements. All public utility easements shall be fifteen (15) feet wide for a single pipeline, with the pipe centerline five (5) feet from one easement edge. For easements with two pipelines, the minimum width shall be twenty (20) feet with each pipe centerline five (5) feet from the easement edge. Easements for all other utilities shall be five (5) feet wide unless specified otherwise by the utility company. Utility easements shall be located along side and rear lot lines wherever possible. r� LANDSCAPING No 51' 1' I-- 2% LANDSCAPING 040 ASPHALT@957. MINIMUM COMPACTION PER ASTM D-1559 ® 6" CRUSHED GRAVEL BASE, —3/4" DIAMETER®97% MINIMUM COMPACTION PER AASHTO T-99 Q 15" SELECT SUB—BASE@95% MINIMUM COMPACTION PER AASHTO T-99 1. THICKNESSES OF ASPHALT, CRUSHED GRAVEL AND SUB —BASE SHALL BE AS SHOWN, UNLESS AN ALTERNATE DESIGN IS APPROVED. THE FINAL STREET DESIGN SHALL BE APPROVED BY THE CITY ENGINEER PRIOR TO START OF CONSTRUCTION. 2. THE WIDTH OF THE RIGHT—OF—WAY MAY BE INCREASED DUE TO ROAD SLOPES, UTILITIES, OR OTHER REQUIREMENTS. 3. ALL LANDSCAPED AREAS SHALL BE SODDED BY THE DEVELOPER. 4. THE MAXIMUM GRADE SHALL BE 77a UTILITY NOTE: ALL NEW UTILITIES SHALL BE PLACED UNDERGROUND. EXCEPT FOR SEWER AND WATER, UNDERGROUND UTILITIES, IF PLACED IN THE STREET RIGHT—OF—WAY OR EASEMENT, SHALL BE LOCATED BETWEEN THE BACK OF THE SIDEWALK AND THE EASEMENT LINE. NO UNDERGROUND UTILITIES SHALL BE PLACED IN THE BOULEVARD BETWEEN THE BACK OF CURB AND SIDEWALK. URBAN DESIGN STANDARD COLLECTOR STREET W Z J ♦- Z W W W SD-1 W Z J W 3: Z Z O O J W w cr w c0 z N W w 28—--� �5 2 2% 5 2 1` 2% 2Y 2 ?q O O 00 O 00 000 O OOOOOOOOOOe000000000bO0000000000000000000000000 O SIDELK ... SIDEWALK WA LANDSCAPING LANDSCAPING iQ 4" ASPHALT@95% MINIMUM COMPACTION PER ASTM D-1559 ® 6" CRUSHED GRAVEL BASE, —3/4" DIAMETER097% MINIMUM COMPACTION PER AASHTO T-99 ® 9" SELECT SUB—BASE095% MINIMUM COMPACTION PER AASHTO T-99 1. THICKNESSES OF ASPHALT, CRUSHED GRAVEL AND SUB —BASE SHALL BE AS SHOWN, UNLESS AN ALTERNATE DESIGN IS APPROVED. THE FINAL STREET DESIGN SHALL BE APPROVED BY THE CITY ENGINEER PRIOR TO START OF CONSTRUCTION. 2. THE WIDTH OF THE RIGHT—OF—WAY MAY BE INCREASED DUE TO ROAD SLOPES, UTILITIES, OR OTHER REQUIREMENTS. 3. ALL LANDSCAPED AREAS SHALL BE SODDED BY THE DEVELOPER. 4. THE MAXIMUM GRADE SHALL BE 77k UTILITY NOTE: ALL NEW UTILITIES SHALL BE PLACED UNDERGROUND. EXCEPT FOR SEWER AND WATER, UNDERGROUND UTILITIES, IF PLACED IN THE STREET RIGHT—OF—WAY OR EASEMENT, SHALL BE LOCATED BETWEEN THE BACK OF THE SIDEWALK AND THE EASEMENT LINE. NO UNDERGROUND UTILITIES SHALL BE PLACED IN THE BOULEVARD BETWEEN THE BACK OF CURB AND SIDEWALK. URBAN DESIGN STANDARD LOCAL STREET SD-2 3 3 20' 6' 6' 1 AX. 29d MAX 1 o o e e, agogoe<000egeoagagag< ....,.. © RESIDENTIAL PAVED: 4" ASPHALT095% MINIMUM COMPACTION PER ASTM D-1559 Q 6" CRUSHED GRAVEL BASE, —3/4" DIAMETERQ97% MINIMUM COMPACTION PER AASHTO T-99 ® RESIDENTIAL: 9" SELECT SUB—BASE@95% MINIMUM COMPACTION PER AASHTO T-99 RESIDENTIAL ALLEY 0 0 1 O' 10' 27tMAX. 2% MAX ",oa, ag o o^o^o�o�o^o^"^o^o^o=ono>e�o^ "vose0000a, Q BUSINESS: 4" ASPHALT095% MINIMUM COMPACTION PER ASTM D-1559 ® 6" CRUSHED GRAVEL BASE, —3/4" DIAMETER097% MINIMUM COMPACTION PER AASHTO T-99 ® BUSINESS: 15" SELECT SUB—BASE095% MINIMUM COMPACTION PER AASHTO T-99 BUSINESS DISTRICT ALLEY URBAN DESIGN STANDARD ALLEY SD-3 1. 1/2" EXPANSION JOINT MATERIAL SHALL BE PLACED AT EACH POINT OF CURVATURE AND POINT OF TANGENCY. 2. CONTRACTION JOINTS SHALL BE PLACED AT EVERY IT OF CURB LENGTH AND SHALL. HAVE A MINIMUM DEPTH OF 3/4" AND A MINIMUM WIDTH OF 1/8". CONTRACTION JOINTS SHALL BE CONSTRUCTED BY SAWING OR SCORING. A TOOL SHALL BE USED WHICH WILL LEAVE CORNERS ROUNDED AND DESTROY AGGREGATE INTERLOCK FOR THE SPECIFIED MINIMUM DEPTH. 3. VISIBLE EDGES SHALL BE FINISHED TO A RADIUS OF 1/4". 4. GRADE, ALIGNMENT AND FORMS SHALL BE INSPECTED BY THE CITY PRIOR TO POURING. 5. CONCRETE SHALL BE M-4000 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 4000 PSI, 6% TO 8% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". 6. INDMDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHALT. BE SUBMITTED TO THE CITY FOR REVIEW. 7. FOUR INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE CURB AND GUTTER FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99. 8, IF SLIPFORMS ARE TO BE USED, A TEST SECTION SHALL BE POURED, INSPECTED, AND APPROVED BY THE PUBLIC WORKS DEPARTMENT PRIOR TO PLACEMENT OF ANY PERMANENT CURB AND GUTTER. .1!!ill, R 11, ,.I ,.• AND GUTTER A SIDEWALK 5' CO CRETE FLOWLINE t BOULEVARD OR ASPHALT R8 AND UTTER SD-4 OR SD-5) A >- EXPANSION JOINT > O 00 _O � m � m � n- zz z� Q V Q V Fes-d- I I o cn fl cn J a z 3: O w ry o n in Q 5' 6" CONCRETE W 6" BASE MATERIAL MA OR 4' ASPHALT W/6' BASE MATERIAL 1,,L%o 6 BASE MATERIAL SECTION A —A BASE MATERIAL SHALL BE CRUSHED GRAVEL, —3/4" DIAMETER COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99 URBAN DESIGN STANDARD DRIVEWAY DETAIL FOR CURB &GUTTER SD-8 R4 1' 15" 108„ 3„ 2431, 1,> 1 a a 6 :a a 2 2» 24" 1. 1/2" EXPANSION JOINT MATERIAL SHALL BE PLACED AT EACH POINT OF CURVATURE AND POINT OF TANGENCY. 2. CONTRACTION JOINTS SHALL BE PLACED AT EVERY IY OF CURB LENGTH AND SHALL HAVE A MINIMUM DEPTH OF 3/4" AND A MINIMUM WIDTH OF 1/8". CONTRACTION JOINTS SHALL BE CONSTRUCTED BY SAWING OR SCARING. A TOOL SHALT. BE USED WHICH WILL LEAVE CORNERS ROUNDED AND DESTROY AGGREGATE INTERLOCK FOR THE SPECIFIED MINIMUM DEPTH. 3. VISIBLE EDGES SHALL BE FINISHED TO A RADIUS OF 1/4". 4. GRADE, ALIGNMENT AND FORMS SHALL BE INSPECTED BY THE CITY PRIOR TO POURING. 5. CONCRETE SHALL BE M-4000 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 4000 PSI, 6% TO 8% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF f. 6. INDIVIDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 7. FOUR INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE CURB AND GUTTER FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99. 8, THIS CURB DOES NOT MEET HANDICAPPED ACCESS REQUIREMENTS AND SHALL NOT BE USED FOR ACCESS RAMPS. 9. IF SLIPFORMS ARE TO BE USED, A TEST SECTION SHALL BE POURED, INSPECTED AND APPROVED BY THE PUBLIC WORKS DEPARTMENT PRIOR TO PLACEMENT OF ANY PERMANENT CURB AND GUTTER. URBAN DESIGN STANDARD DRIVE OVER CURB & GUTTER SD-5 1. 1/2" EXPANSION JOINT MATERIAL SHALL BE PLACED AT EACH POINT OF CURVATURE AND POINT OF TANGENCY. 2. CONTRACTION JOINTS SHALL BE PLACED AT EVERY 15' OF CURB LENGTH AND SHALL HAVE A MINIMUM DEPTH OF 3/4" AND A MINIMUM WIDTH OF 1/8". CONTRACTION JOINTS SHALL BE CONSTRUCTED BY SAWING OR SCORING. A TOOL SHALL BE USED WHICH WILL LEAVE CORNERS ROUNDED AND DESTROY AGGREGATE INTERLOCK FOR THE SPECIFIED MINIMUM DEPTH. 3. VISIBLE EDGES SHALL BE FINISHED TO A RADIUS OF 1/4, UNLESS OTHERWISE NOTED. 4. GRADE, ALIGNMENT AND FORMS SHALL BE INSPECTED BY THE CITY PRIOR TO POURING. 5. CONCRETE SHALL BE M-4000 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 4000 PSI, 6% TO 8% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". 6. INDIVIDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHAM BE SUBMITTED TO THE CM FOR REVIEW. 7. FOUR INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE CURB FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99. B. IF SLIPFORMS ARE USED, A TEST SECTION SHALL BE POURED, INSPECTED AND APPROVED BY THE PUBLIC WORKS DEPARTMENT PRIOR TO PLACEMENT OF ANY PERMANENT STRAIGHT CURB. URBAN DESIGN STANDARD I STRAIGHT CURB I SD-6 SIDEWALK (4" THICK EXCEPT w AT DRIVEWAYS WHERE THE Q SIDEWALK SHALL BE 6" !�� THICK � o J � O O W J � O i 1. 1/2" EXPANSION JOINT MATERIAL SHALL BE PLACED AT APPROXIMATE INTERVALS OF 45 FEET. 2. CONTRACTION JOINTS SHALL BE SPACED THE APPROXIMATE SAME DIMENSION AS THE WIDTH, BUT NOT TO EXCEED SIX FEET. CONTRACTION JOINTS SHALL BE CONSTRUCTED BY SAWING OR SCORING. A TOOL SHALL BE USED WHICH WILL LEAVE THE EDGES ROUNDED AND DESTROY AGGREGATE INTERLOCK FOR THE SPECIFIED MINIMUM DEPTH. CONTRACTION JOINTS SHALL BE A MINIMUM OF 1/4 OF THE TOTAL DEPTH OF THE CONCRETE. 3. ALL VISIBLE EDGES AND JOINTS SHALL BE ROUNDED WITH AN EDGING TOOL WITH A MINIMUM 1/4" RADIUS. 4. CONCRETE SHALL BE M-4000 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 4000 PSI, 6% TO 80/o AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". 5. SD( INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE SIDEWALK FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99. 6. GRADE, ALIGNMENT, AND FORMS SHALL BE INSPECTED BY THE PUBLIC WORKS DEPARTMENT PRIOR TO POURING. SIDEWALK SD-7 A SIDEWALK CON 5 5 R OR CI PHALT BOULEVARD L4J A 1-4J z z 0 0 0n to z z Q r J Q � Z o ry 6" CONCRETE W 6" BASE MATERIAL Q OR 4 ASPHALT W 6 BASE MATERIAL ' 1" VERTICAL EXPOSURE ACROSS 2%M X DRIVEWAY SECTION 6 BASE MATERIAL SECTION A -A BASE MATERIAL SHALL BE CRUSHED GRAVEL, -3/4" DIAMETER COMPACTED TO 97% MINIMUM COMPACTION PER AASHTO T-99 URBAN DESIGN STANDARD DRIVEWAY DETAIL FOR STRAIGHT CURB SD-9 (SD-6) TOPSOIL r-5' MINIMUI SIDEWALK NATIVE MATERIAL 08101611 1. TOPSOIL, SEEDING AND SODDING SHALL CONSIST OF TOPSOIL AND SOD OR SEEDING. THE SEED MIXTURE SHALL CONFORM TO THE REQUIREMENTS OF PARAGRAPH 5 BELOW. 2. TOPSOIL SHALL BE FERTILE, NATURAL LOAM SURFACE SOIL, FREE OF CLAY, WEEDS, ROOTS OR STONES LARGER THAN ONE INCH IN ANY DIMENSION. A MINIMUM OF FOUR INCHES OF LOOSE TOPSOIL IS REQUIRED FOR SOD BASE. REMOVE OR BREAKDOWN ALL CLUMPS IN TOPSOIL LARGER THAN ONE INCH IN ANY DIMENSION. COMPACT TOPSOIL SUFFICIENTLY TO PREVENT ANY SETTLEMENT DURING SOD ESTABLISHMENT. WATER PREPARED AREAS TO SAME MOISTURE CONTENT AS SOD. 3. SOD SHALL BE A BLEND OF NOT LESS THAN FOUR BLUEGRASS VARIETIES AND SHALL BE OBTAINED FROM A LOCAL SOURCE. SOD SHALL BE PLACED WITHIN 24 HOURS OF HARVESTING. IRRIGATE SOD AS REQUIRED TO MAINTAIN HEALTHY GROWTH. 4. THE CONTRACTOR SHALL ESTABLISH EACH TURF AREA OF THIS CONTRACT FOR A MINIMUM OF 45 DAYS AND THREE MOWINGS. THE ESTABLISHMENT PERIOD SHALL BEGIN THE DAY AFTER APPROVAL OF SOD INSTALLATION, OR WHEN THE WHEN THE GRASS HAS ATTAINED A HEIGHT OF TWO INCHES. IF, UPON INSPECTION, AFTER 45 DAYS, THE TURF IS FOUND TO BE IN A HEALTHY GROWING CONDITION WITH NO BARE SPOTS, THEN THE OWNER'S REPRESENTATIVE WILL APPROVE THE 'TURF ESTABLISHMENT PERIOD' AS COMPLETE. NONCOMPLIANCE WITH THE ABOVE CONDITIONS WILL EXTEND THE TURF ESTABLISHMENT PERIOD UNTIL APPROVAL IS MET. TURF MAINTENANCE, DURING THE ESTABLISHMENT PERIOD, SHALL INCLUDE WITHOUT LIMITATION; MOWING, EDGING, FERTILIZING, WEED CONTROL, REMOVAL AND REPLACEMENT OF DEAD TURF AREAS AS REQUIRED, AND IRRIGATION TO MAINTAIN HEALTHY GROWTH. S. WHEN SIDEWALKS, CURBING, OR OTHER CONCRETE FLATWORK IS REPLACED AND THE LANDSCAPING IS LESS THAN ONE FOOT WIDE, THE AREA MAY BE RESTORED WITH TOPSOIL AND GRASS SEED. GRASS SEED SHALL CONTAIN 55% BLUEGRASS, 25% PERENNIAL RYEGRASS AND 20% CREEPING RED FESCUE OR AN APPROVED EQUAL MIX. THE CONTRACTOR IS RESPONSIBLE FOR ESTABLISHMENT OF HEALTHY GRASS GROWTH. URBAN DESIGN STANDARD TOPSOIL, SEEDING AND SODDING I SD-10 l VLMIULL I tCHl.t111 u P`HU 8" THICKNESS OF 1.5-3.5 INCH STONE MIN LENGTH MIN WIDTH RESIDENTIAL 30 FEET 15 FEET COMMERCIAL/BUSINESS 40 FEET 25 FEET ALL VEHICLES ENTERING AND EXITING THE CONSTRUCTION AND/OR BUILDING SITE SHALL TRAVERSE THE VEHICLE TRACKING PAD TO MINIMIZE MUD AND DIRT FROM TRACKING OFFSITE. ROCK SHALL BE REPLENISHED IF TRACKING OCCURS. TRACKING PAD WILL BE RENEWED AS DIRECTED BY THE CITY ENGINEER TO RETAIN ITS EFFECTIVENESS. ALL MATERIAL SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS SHALL BE REMOVED IMMEDIATELY. VEHICLE TRACKING CONTROL I SD-11 HUB OR BELL OF EQUAL DIAMETER AS SER 1. THIS TYPE OF CONNECTION SHALL BE USED ON MAINS OF 15 INCHES OR LARGER DIAMETER. 2. HUB OR BELL OF EQUAL DIAMETER AND TYPE OF PIPE WHICH WILL BE USED FOR THE SERVICE LINE SHALL BE USED FOR THE CONNECTION FITTING TO THE EXISTING MAIN. 3. HUB OR BELL SHALL NOT PROTRUDE MORE THAN 1/4 INCH INTO EXISTING MAIN. 4. ALL CONNECTIONS TO MAINS SHALL BE WATERTIGHT. A FILLET OF GROUT OR EPDXY SHALL BE APPLIED AROUND THE DIAMETER OF THE HUB OR BELL TO ASSURE A WATERTIGHT, LEAKPROOF CONNECTION. 5. CONNECTION DETAILS SHALL BE SUBMITTED TO THE PUBLIC WORKS DEPARTMENT FOR APPROVAL PRIOR TO INSTALLATION. 6. ALL CONSTRUCTION PHASES OF THIS TYPE OF CONNECTION SHALL BE INSPECTED BY THE PUBLIC WORKS DEPARTMENT. 7. LINES LESS THAN 15 INCH DIAMETER SHALL BE TAPPED WITH AN APPROVED, COMMERCIALLY AVAILABLE TAPPING SADDLE. URBAN DESIGN STANDARD ( STORM DR CIE & SANI ARY SEWER I SD-12I 6' MINIMUM INLAND FOUNDRY 772A, OLYMPIC FOUNDRY MH37A, OR APPROVED EQUAL THE COVER SHALL BE MARKED 'WATER' ADJUSTING RINGS AS REQUIRED 16" STEP SPACING VIES 6" FLAT SLAB COVER TIGHT SEALANT 12" MINIMUM THICKNESS WASHED GRAVEL NOTE: MUELLER/HUNT THERMAL COIL METER BOX OR APPROVED EQUAL MAY BE SUBSTITUTED FOR THE ABOVE SHOWN DETAIL. URBAN DESIGN STANDARD I WATER METER PIT (SD-1 WATER MAINS AND SERVICES SANITARY AND STORM SEWER MAINS AND SERVICES REPAIR SURFACE TO ORGINAL OR BETTER CONDITION 4" ASPHALT 6" CRUSHED GRAVEL BASE, 9"-12" SELECT- SUBBASE 12"MIN--,TYP% ` TYPE "A" TRENCH BACKFILL BEDDING, HAUNCHING & INITIAL BACKFILL 1.5" TO 3.5 " DIAMETER CRUSHED STO TO STABILZE UNSTABLE FOUNDATION ALL PIPE BEDDING AND TRENCH BACKFILL SHALL BE COMPACTED TO 95% MAXIMUM DRY DENSITY IN ACCORDANCE WITH AASHTO T-99 ALL TRENCH CONSTRUCTION SHALL CONFORM TO CURRENT OSHA STANDARDS - EXCAVATIONS INSTALL DETECTABLE WARNING TAPE AND TONER WIRE ON ALL WATER MAINS AND SEWER FORCE MAINS PER SECTION DS-02 AND DS-03 URBAN DESIGN STANDARD BEDDING, HAUNCHING & INITIAL BACKFILL SHALL BE 3/4" MINUS CRUSHED STONE, A CLEAN MEDIUM OR COARSE SAND, OR ENGINEER SHALL SUBMIT DOCUMENTATION THAT THE BEDDING, HAUNCHING AND INITIAL BACKFILL WILL MEET THE REQUIREMENTS FOR CLASS 1B MATERIALS AS DEFINED IN ASTM D 2321 WITH A MAXIMUM PARTICLE SIZE OF 3/4" TYPICAL UTILITY TRENCH SD-1 18" MINIMUM BACK OF CURB TO EDGE OF SIGN 2" GALVINIZED PIPE 9' LONG 'MINIMUM TOP qF CURB TO BOTTOM OF SIGN 2" GALVINIZED COUPLING 8" DIA. X 30" DEEP CONCRETE BASE 112$$ X 4" HEX BOLT ANCHOR 4' MI URBAN DESIGN STANDARD I STREET SIGNS ISD-151 z 0 O Lli 0 -00 z 0 C.) CL CL 0 0 0 Z;K U) 00 0 z �- CL w 0 0 < 0 Z) -co URBAN DESIGN STANDARD STREET INTERSECTION GUTTER SD-16 1. PEDESTRIAN RAMPS SHALL COMPLY WITH THE AMERICANS WITH DISABILITIES ACT/ACCESSIBILITY GUIDELINES FOR BUILDINGS AND FACILITIES. 2. THE LEAST POSSIBLE SLOPE SHALL BE USED FOR PEDESTRIAN RAMPS. THE MAXIMUM SLOPE SHALL BE 1:12 (8.337.). 3. THE CROSS SLOPE SHALL BE NO GREATER THAN 1:50 (2.007o). 4. A LANDING AREA THE WIDTH OF THE RAMP AND AT LEAST 36 INCHES IN LENGTH SHALL BE PROVIDED AT THE TOP OF THE RAMP. SLOPE OF THE LANDING SHALL NOT EXCEED 1:50 (2.007.) IN ALL DIRECTIONS. 5. ALTERNATE DESIGNS AND LOCATIONS SHALL MEET THE REQUIREMENTS OF THE AMERICANS WITH DISABILITIES ACT/ACCESSIBILITY GUIDELINES FOR BUILDINGS AND FACILITIES AND SHALL BE APPROVED BY THE PUBLIC WORKS DEPARTMENT PRIOR TO START OF CONSTRUCTION. 6. PEDESTRIAN RAMPS SHALL BE A MINIMUM OF 60 INCHES WIDE URBAN DESIGN STANDARD I PEDESTRIAN RAMP ISD-17 CURB INLET Zh MANHOLE VALVE BOX xs COMPACTION URBAN DESIGN STANDARD - TEST LOCATION COMPACTION TEST LOCATIONS ISD-18