Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Resolution 5030 - Design and Construction Standards
RESOLUTION NO.5030 A UVROT I TTION TO AMFNII RF.v%014TTI0N NCI.. 121;4 RV AMVNn1NC; T14F. 1006 STANDARDS FOR DESIGN AND CONSTRUCTION FOR THE CITY OF KALISPELL, MONTANA, AND SETTING AN EFFECTIVE DATE. WHEREAS, on April 15, 1996, the City of Kalispell adopted Resolution No. 4259, the "Standards of General Provisions for Design and Construction" for the City of Kalispell, Montana, pursuant to Ordinance No. 1003, and WHEREAS, it has become necessary to amend and correct the "Standards and General Provisions for the Design and Construction" for the efficient operation of the City of Kalispell Public Works Department. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF KALISPELL AS FOLLOWS: SECTION 1. The 1996 Standards for Design and Construction are amended as set forth in Exhibit "A" attached hereto and thereby made a part hereof. SECTION 11. This Resolution shall become effective immediately following its passage by the City Council and approval by the Mayor. PASSED AND APPROVED BY THE CITY COUNCIL AND SIGNED BY THE MAYOR OF THE CITY OF KALISPELL, THIS 18TH DAY OF JULLY_, 2005. �amelaB. Ken edy Mayor ATTEST: , — J� -,� �-, Theresa White City Clerk CITY OF KALISPELL RIM DESIGN AND CONSTRUCTION JULY2005 STANDARDS FOR DESIGN AND CONSTRUCTION SECTION I GENERAL PROVISIONS Page Number GP-01 Standards .................................. ........................... I .................... I ...... .....................I-1 GP-02 Public Right -of -Way Permit ......................... GP-03 City Fees.. ................................................................................................ __ ................. 1-1 GP-04 Applicable Laws and Indemnification of City .......................................... ..................... I-2 GP-05 Interruption of Service., .... .................... ............... .................................................. 1-2 GP-06 Traffic and Pedestrian Control .......... ............................................................................. I-2 GP-07 Liability Insurance and Bonding ........................ ............................................................ 1-3 GP-08 Maintenance Bond for New Infrastructure.....................................................................I-3 GP-09 Excavation & Disposal of Material From Existing Right -of -Way & Easement ............I-4 GP-10 Survey Monumentation.... .............................................................................................. I-4 GP-11 Pollution Controls.........................................................................................................I-4 GP-12 Pavement Restoration.................................................................................... ..I-5 GP-13 Storm Water Discharge Permit .................. .......... .. I-5 .............. ........................................... GP-14 Construction Inspection ............................................. .............................. ....................... I-6 GP-15 Guarantee for Equipment, Materials and Workmanship .................... .I-6 GP-16 Stop Work Order............................................................................................................I-6 GP-17 Relocation of Utilities.......................................................... .............I-6 SECTION II DESIGN STANDARDS Page Number DS-01 Design and Development Requirements ... .................................................................... II-1 DS-02 Water Systems ................... .................. .................................................................... ...... 11-2 DS-03 Sanitary Sewer Systems................................................................................................II-3 DS-04 Storm Drainage Systems .................... ........... ................................................................ II-6 DS-05 Roadways and Walkways.............................................................. ................................ II-8 TABLE 1 Road Design Standards for Local Subdivision Streets .............................. ........ .....II-10 DS-06 Driveways .............................. .....II-11 DS-07 Placement of Utilities ............. .................................................... .................................II- I I SECTION III CONSTRUCTION STANDARDS Page Number CS-01 Project Requirements ..................... ........................................... I.................................. III-1 CS-02 Construction Standards................................................................................................ III-1 CS-03 Construction Inspection, Testing, and Quality Control ............................................... III-1 CS-04 Record Drawings and Project Acceptance.................................................................. III-3 CS-05 Two Year Guarantee Inspection .................................... ............................................... 1I1-3 CS-06 Boulevard Landscaping................................................................................................111-3 STANDARDS FOR DESIGN AND CONSTRUCTION SECTION IV STANDARD DRAWINGS SD- l Collector Street SD-2 Local Street SD-3 Rural Road SD-4 Alley SD-5 Curb and Gutter SD-6 Drive Over Curb & Gutter SD-7 Straight Curb SD-8 Sidewalk SD-9 Driveway Detail for Curb & Gutter SD-1 D Driveway Detail for Straight Curb SD-11 Vehicle Tracking Control SD-12 Storm. Drain and Sanitary Sewer Service Connections SD-13 Water Service Line SD-14 Typical Utility Trench SD-15 Street Signs SD- l 6i Street Intersection Gutter SD-17 Pedestrian Ramp SECTION I GENERAL PROVISIONS GP-01 Standards, The latest published edition of the Montana Public Works Standard Specifications are adopted in their entirety, except as amended by the latest edition of the City of Kalispell Standards for Design and Construction. With respect to the design and/or construction of public facilities, any conflict(s) or difference(s) between the Montana Public Works Standard Specifications, the City of Kalispell Subdivision Regulations, and the City of Kalispell Standards for Design and Construction shall be resolved in favor of the City of Kalispell Standards for Desio and Construction. GP-02 Public Right -of Way Permit. All construction, excavation or other work on public or private property which will necessitate the use of the public right-of-way or easement shall require a Public Right -of -Way Permit issued by the Public Works Department. The work authorized by the Permit includes, but is not limited to, street construction and repair, water, sewer, and storm system construction and repair, utility connections and repair, landscaping, sidewalk, curbing and driveway construction and repair. Also included are any other uses of the public right-of-way where there is a possibility of creating a hazard. Examples of hazards are scaffolding, storage of materials or equipment, crane and equipment operations, demolition, sandblasting and painting operations, temporary construction or demolition dumpster placement and any other use deemed a hazard by the Public Works Department. The Permit will not be issued until all insurance and bonding requirements have been met. In an emergency which requires repairs to be made immediately, the Contractor may excavate and complete the repairs without first having obtained a Permit. Prior to beginning work at the site during normal working hours, the Contractor shall notify the Public Works Department at 758-7720. Prior to beginning work after hours, the Contractor shall notify police dispatch at 758-7780. In either case, the Contractor shall describe the circumstances and provide the location of the emergency repairs. The Contractor shall obtain the Permit no later than the next scheduled City work day. All provisions of the Standards for Design and Construction for the City of Kalispell, Montana, shall be complied with regardless of the circumstances of the construction. All steel tracked equipment operating within a public street right-of-way shall be fitted with triple grouser street pads. The Contractor shall be responsible for damages to City infrastructure within the public street right-of-way. GP-03 Cily Fees. Wafter & Sewer Service Connection Fee. A connection fee shall be paid for the connection of each new water and sewer service to the system. This fee must be paid even if a service line has previously been stubbed to the property line or other accessible location. Connection fees for water and/or sewer must be paid before a Building Permit will be issued by the Building Department. I-1 Construction of Water Service. When it is necessary to tap an existing water main for a service connection, the City will provide the equipment, labor and materials required to tap the main, install the service line from the main to the service valve, install backfill, and restore the pavement surface. The City will charge the Owner for equipment, labor and materials required to complete the work. The Owner will be responsible to construct the service line from the service valve to the point of service. Construction of Sewer or Storm Service. When it is necessary to tap an existing sewer or storm main for a service connection, the Contractor will provide the equipment, labor and materials required to tap the main, install the service line from the main to the point of use and restore the public right of way to the pre -construction condition. GP-04 ARRlicable Laws and Indemnification of City. The Contractor shall give all notices and comply with all federal, state and local laws, ordinances and regulations affecting the conduct of the work, and shall indemnify and hold harmless the City against any clamp or liability arising from, or based on, the violation of any such law, ordinance, regulation, etc., whether by himself or his employees. GP-05 Interruption of Service. Any construction that will interrupt the normal operation of city sewer, water or transportation facilities requires notification of affected City departments and property owners and/or residents. The Contractor shall notify the Kalispell City Police and Fire Departments at least forty-eight (48) hours prior to any street closures. All street closures or interruptions of utility services will require the Contractor to provide a news release specifying the location of construction and the duration of the closure. The Contractor shall present the news release to the news media at least two (2) work days prior to the beginning of any construction activity. The Contractor shall also notify utility users affected by the interruption of the type and duration of the interruption at least forty-eight (48) hours prior to beginning construction. In the event of an emergency interruption, the Contractor shall notify the Public Works, Police and Fire Departments as quickly as possible. The Contractor shall immediately dispatch members of his staff to notify affected individuals by telephone or personal contact. GP-06 Traffic and Pedestrian Control. A Traffic and Pedestrian Control Plan shall be submitted and approved by the Public Works Department for all work within the public right-of-way. The latest edition of the Manual on Uniform Traffic Control Devices (MUTCD) shall be followed to create the PIan. The location and description of all Traffic and Pedestrian Control Devices shall be shown on the plan. All signs, except "Stop„ signs, shall comply with the MUTCD for size, type, placement, material and reflectivity. "Stop" signs shall be 30". The plan must be approved prior to beginning construction. If the required devices are not in place, the Contractor will not be allowed to begin work on the project. All devices shall be kept in place and maintained in good visible condition throughout the project. The Public Works Department reserves the right to reject any device observed to be in substandard condition. Emergency access to the work area shall be maintained at all times. 1-2 All barricades and obstructions shall be protected at night by suitable signal lights which shall be kept illuminated from sunset to sunrise. Barricades shall be of substantial construction and shall be constructed to increase their visibility at night. Suitable warning signs shall be placed and illuminated at night to show in advance where construction, barricades or detours exist. If flagging is required it shall be accomplished by competent and properly equipped flag persons. Flagging shall be accomplished as described in the Montana De artment of Trans ortation Fla er's Handbook and the MUTCD. Traffic control devices shall be removed from visual contact with the traveling public when they are not being used for the construction activities. The Contractor shall remove all traffic and pedestrian control devices within 24 hours of the conclusion of the project construction. If the Contractor fails to maintain the Traffic and Pedestrian Control Devices in accordance with the approved plan, the City will correct the deficiency and all labor, equipment, material and administrative costs will be billed to the Contractor. GP-07 Liabili Insurance and Bonding. Liabilfty Insurance for Work Within Existing Public Ri t-of Wa and/or Easement. The Contractor shall procure and maintain, at the Contractor's expense, during the construction period, Contractor's Liability Insurance in accordance with the Supplementary Conditions to the General Conditions of the Montana Public Works Standard Specifications. All construction work within the public right-of-way or easement (sidewalk and curb construction, storm drainage and sanitary sewer service line installation, repair, etc.) will require the Property Owner/Contractor to provide the City with a Performance Bond. The bond shall be equal to the value of the project and shall remain in force for one year. Contractors furnishing the City with an annual bond of $5,000 will not be required to furnish additional bonding if the $5,000 bond meets the requirements of these standards, Bonds may be in the form of a Surety Bond, a Certificate of Deposit (CD), a Certified Check or an irrevocable Letter of Credit issued by a bank Iicensed to do business in the state of Montana. GP-08 Maintenance Bond for New Infrastructure. As a condition precedent to the filing of a final plat, the Property Owner, Developer, or Contractor shall provide the City with a Maintenance Bond of twenty per cent (20%) of the total value of the public infrastructure constructed within the subdivision, development, or phased development. The Maintenance Bond shall remain in frill force for a two year period after acceptance of the entire City infrastructure by the City for maintenance. The City expressly reserves the right to draft the Maintenance Bond for repairs not completed by the Property Owner, Developer, or Contractor within thirty calendar days of being advised that repairs are required. I-3 The Commencement Date for the Maintenance Bond shall be the date set for the completion of the required improvements as stated in the Subdivision Improvement Agreement, or the date of Substantial Completion as certified by a Professional Engineer. If the expiration date of the Maintenance Bond falls after November 16, the expiration date of the Maintenance Bond shall be June 30 of the following year. Maintenance bonds may be in the form of a Surety Bond, a Certificate of Deposit (CD), a Certified Check or an irrevocable Letter of Credit issued by a bank licensed to do business in the state of Montana. GP-09 Excavation and Disposal of Material from Existin Public Rj2ht-of-Way and Easement. All material unsuitable for trench backfill, sub -base or base construction, excavated from the developed public right -of --way or easement shall be removed from the site and disposed of by the Contractor. The disposal site shall meet regulatory provisions for disposal of the unsuitable excavated material. Unsuitable excavated material shall not be stockpiled on site. Excavated material shall be confined to the work zone as established during the preconstruction conference or as shown in the contract documents. All steel tracked equipment operating within a public street right-of-way shall be fitted with triple grouser street pads. The Contractor shall be responsible for damages to City infrastructure within the public street right-of-way. GP-10 Survey Monumentation. When a street is to be reconstructed, prior to any excavation, a thorough search shall be made for existing intersection monuments. If found, such monuments shall be perpetuated by standard survey methods including referencing to at least three (3) accessories such as a chiseled 'Y' on a storm drain hood, fire hydrant base bolt, fire hydrant operating nut, drilled hole in curb, or property pin. Monumentation. Monuments shall be a minimum 5/8" diameter rebar or drivable metal rod, at least 18" long. The monument shall be capped with a brass or aluminum cap identifying the responsible land surveyor with name and number. The cap shall be recessed at least 1/8" below the final asphalt surface. Monument risers w/lids of the same type as city water valves (six inches inner diameter) may be used. The City will provide a riser and lid if given a minimum of three (3) days notice prior to setting if stocks are available. The monument must fall within City limits. GP-11 Pollution Controls. Air. The Contractor shall be responsible to maintain the construction site and all haul routes in accordance with the requirements of the City of Kalispell's Emission Control Plan (see City Ordinance No. 1139). If the Contractor should fail to meet these requirements, City forces will perform the work and the Contractor will be billed for labor, equipment, materials and administrative costs. When the area to be disturbed is greater than 4,000 square feet, the Contractor shall obtain an Air Quality Construction/Demolition Permit prior to beginning construction. Forms are available at the Public Works Department. A plan for the control of dust and dirt during construction to avoid the introduction of particulate matter into the air shall be developed using water and other methods. Said plan shall be provided to the Public Works Department prior to start of construction. I-4 Water. No runoff containing sediment shall be permitted to flow off of any construction site. Sediment shall not be discharged into storm drainage systems, waterways or wetlands. For all developments, the Design Engineer shall indicate on the plans the type and location of the temporary erosion and sedimentation control barriers to be used. The Contractor shall provide and maintain the required sediment control barriers. The control barriers shall not be removed until all roadways have been paved and a permanent and stable vegetative cover has been established. Roadwa s. All construction and/or building site approaches onto public roadways shall have a vehicle tire cleaning area as illustrated in Standard Drawing SD-11. All vehicles entering and exiting the site shall do so on the tracking control approach. If such an approach becomes ineffective, additional rock will be required. All public roadways shall be kept free of mud and dirt from construction or building sites. If the contractor fails to keep public roadways free of mud and dirt, the City will clean the roadway and all labor, equipment, material and administrative costs will be billed to the contractor. GP-12 Pavement Restoration. The Contractor signing the Public Right -of -Way Permit shall be responsible for pavement replacement. The Contractor shall restore all surfaces within fourteen calendar days after completing the backfill work. The pavement restoration shall match the pavement structure thickness as shown on Standard Drawings SD -I through SD-3. All excavations within 36" of the edge of the asphalt shall require removal and replacement from the edge of asphalt to the excavation edge. Asphalt patch areas that fall within the wheel path of the vehicular travel lane shall be increased in size to the center of the lane or adjacent lane. In no circumstance will the edge of a patch area be allowed to fall within the wheel path. Any damage to the existing asphalt surface caused by the Contractor's operations shall be repaired at the expense of the Contractor, including but not limited to gouges, scrapes, outrigger marks, backhoe bucket marks, etc. A slurry seal type covering will be considered the minimum repair. The Contractor shall be responsible for maintaining the area in a smooth and drivable condition until the permanent pavement is placed. If the ground is frozen, the road cut shall be temporarily repaired with a minimum thickness of two (2) inches of cold patch material. The temporary repair shall be maintained by the Contractor for safe winter usage. The permanent restoration shall be made as soon as the ground is thawed in the spring, or as directed by the Public Works Department. Pavement repairs shall be in accordance with the Standards for Design and Construction. If the Contractor fails to restore the pavement within the fourteen day period, or fails to maintain the trench or area as required, the City will complete the restoration or maintenance, and all labor, equipment, material and administrative costs will be billed to the Contractor. GP-13 Storm Water Discharge Permit. No sediment laden or polluted water shall be discharged off of any construction or building site. The current Montana Pollutant Discharge Elimination System may require a storm water discharge permit for construction activity. If required, a Storm Water Erosion Control Plan must be approved by the Montana Department of Environmental Quality prior to construction. A copy of the approved Storm Water Erosion Control Plan shall be provided to the Public Works Department. 1-5 GP-14 Construction Inspection. Maintenance and repair work within public right-of-way or easement shall be inspected and approved by the Public Works Department. It is the Contractor's responsibility to notify the Public Works Department of the work requiring inspection at least twenty-four (24) hours in advance so the Public Works Department may schedule and perform such inspections. GP-15 Guarantee for Equipment, Materials and Workmanship. The Contractor shall guarantee all materials and equipment furnished, and construction work performed for maintenance and repair work on existing public infrastructure for a period of one (1) year from the date of written acceptance of the work by the City. The guarantee for new City infrastructure will be in accordance with Section GP -OS. GP-16 Stop Work Order. A written Stop Work Order may be issued by the Public Works Department if the work in progress does not meet the Standards for Design and Construction for the City of Kalispell, Montana, or for any other valid reason. Work may resume only after a written Resume Work Order has been issued by the Public Works Department. GP-17 Relocation of Utilities Requests to relocate an existing public utility shall be submitted in writing to the Public Works Department. A sketch shall be included that illustrates the existing location of the utility and the preferred relocation site. The request shall describe in detail the circumstances for the request. The Public Works Department may require the utility relocation to be designed by a licensed engineer_ If the relocation is approved by the Public Works Department the utility shall be relocated by a bonded and insured utility contractor. Under no circumstances will the City of Kalispell pay for any costs associated with the relocation of the utility. I-6 SECTION II 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 Engineer in responsible charge of the design. Water and sanitary sewer system designs shall be reviewed concurrently by the City 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 City Engineer. All required approvals shall be obtained prior to beginning construction. Design calculations and testing results shall be submitted to the City Engineer as required or requested. Development Requirements. All subdivisions and developments shall be in compliance with The Subdivision Regulations of the City of Kalispell, and these Standards for Design and Construction. 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 City 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 the City with all easements and right-of-ways necessary to extend roadways and utilities to the far property line of the development. The Developer shall obtain written approval from the Kalispell Public Works Department stating they have reviewed and approved the location of casements for the future extension of roadways and utilities which shall be submitted with the final plat along with an I1" by 17" legible copy of the approved final plat showing the utility and/or easement locations. There shall be reserved along the front lot line and side street lot line of each residential lot a five foot (S') wide utility easement along, contiguous and adjacent to the lot line to provide an area between the sidewalk and easement line for the placement of privately owned underground 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, except service sweeps from the utility trench to the street lights, utility boxes, pedestals, vaults, or transformers shall be placed in the boulevard between the back of curb and sidewalk or within a sidewalk itself. No above ground utility boxes, pedestals, vaults, or transformers shall be placed within the radial extension of an easement, proposed roadway, or access way to any City facility. Site plans, grading plans, and elevations used for infrastructure work shall be based on the North American Vertical Datum 1988. Site plans, projects, designs, and surveys conducted on City property or paid for with City funding shall be based on and utilize the local City horizontal coordinate system (KAL 94). Assistance/coordinates can be obtained from the office of the City Surveyor. H-1 DS-02 Water Systems. Water systems shall be designed, constructed, and tested in accordance with the current editions of circular W B 1 - Montana Department of Health and Environmental Sciences - Standards for Water Works, The Montana Public Works Standard Specifications and The Standards for Desi and Construction Kalil ell Montana. 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 City Engineer 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 City 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 Kalispell Fire Department. Minimum Pipe Sizes. The minimum diameter of all mains shall be eight (8) inches unless a smaller diameter is approved by the City Engineer. 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 Wedge 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 with 5" Storz adapter with cap 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. II-2 Service Clam s. 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-rite 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 Pipe. 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. Tapping Sleeves. Tapping sleeves shall be Romac SST Ed 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 or screw type adjustment. Mechanical Joint Restraints. Megalugs or similar mechanical joint restraining devices may be used. Thrust blocks shall be required at all megalugs and similar mechanical joint restraining devices. Blow -offs. Valved blow -offs shall be installed at all main dead -ends that do not have a fire hydrant. Warning Tam. 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 insulated solid core copper toner wire. Toner wire shall be insulated and taped to the top of the water main. Splices of toner wire shall be made with heat shrink tape. DS-03 Sanitary Sewer S stems. Sanitary sewer systems shall be designed, constructed and tested in accordance with the current editions of W B 2 Montana Department of Environmental Quality - Desio Standards for Wastewater Facilities, Montana Public Works Standard Specifications and The Standards for Design and Construction, Kalispell, Montana. The following shall apply to the design of all sanitary sewers: Minimum design contributing wastewater flows shall be: residential, 87 gpd/capita; commercial, 20 11-3 gpd/employee; and wet weather infiltration, 100 gpolacre. The City Engineer may require sulfide generation analysis. if dissolved sulfide is likely to exceed 0.2 mglL, 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 City Engineer, 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 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 lid 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. H-4 Unless otherwise approved by the City Engineer, 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. The use of a proprietary name of a particular Supplier or Manufacturer is intended to establish the type, function, and quality expected. Submersible 3" pumps or submersible grinder pumps will be considered based on the required operating volumes and heads of the proposed lift station. Unless otherwise approved by the City Engineer, an emergency power supply will be required for all lift stations. Upon request from the City Engineer, 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 City 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 with modem (EMOD001) and pump cycle option (ECYC001). 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. The primary level control system shall be a transducer or air bubbler system. The backup level control system shall be encapsulated mercury float switches. 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 depths of sewers shall be in accordance with MDEQ Circular 2. (MDEQ Circular 2, Paragraph 33.2 states, "In general, sewers should be sufficiently deep to receive wastewater from basements and to prevent freezing. Insulation shall be provided for sewers that cannot be placed at a depth sufficient to prevent freezing.'). 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 in accordance with MPWSS Standard Drawing No. 02730-2. Quality of Sewage. No development shall introduce any sewage into the City of Kalispell Sanitary Sewer System that is not consistent with the requirements of 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 City Engineer. H-5 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 insulated solid core copper toner wire. Toner wire shall be insulated and taped to the top of the force main. Splices of toner wire shall be made with heat shrink tape. Oil/Water Se arators. 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 pretreat these wastes before discharging to the City sanitary sewer system. Pretreatment 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 Drainage Systems. Storm Water DesigLi Report. For all developments containing more than 10,000 square feet, a storm water report shall be submitted to the City 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 R 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 to the detention/retention facility.. 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. The City of Kalispell has adopted the Montana Department of Transportation precipitation values for this area. These values along with related Tables and Figures can be found in the MDT Hydrology Manual at their FTP Site; ftp.mdt. state. mt.us. The stormwater drainage plan shall be designed to limit stormwater runoff from the development site to the pre -development runoff rates. The pre -developed rate calculations shall be included as part of the required facility design calculations. Ii-6 The Rational Method shall be used for calculating runoff from areas of 10 acres or less. For larger areas, the Engineer should consult with the Public Works Department 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/Retention. For storage calculations, the 10-year, 6-hour storm shall be used which creates a 1.2 inch depth of rainfall over the study area during the design storm, in accordance with NOAA Atlas 2, Volume 1, Figure 21. 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. Adequate on -site stormwater detention or retention shall be provided for the design storm runoff exceeding the pre -development rate. Open storm water detention/retention ponds shall be placed more than two hundred (200) feet from any public facility where children can be reasonably expected to congregate. Open storm water detention/retention ponds shall be fenced with a minimum sixty inch (60") high woven wire fence. Underground detention/retention percolation galleries and dry wells may be placed in park areas within the development. 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 culverts 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 City Engineer. Each culvert or drainage facility shall be designed to accommodate existing runoff from upstream drainage areas. Storer 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 and a copy provided to the Public Works Department prior to the start of any construction. Reve etg ation. All areas disturbed during development of the subdivision shall be immediately re - vegetated in accordance with plans approved by the Public Works Department, or the appropriate public agency. Manhole Spacing. The maximum spacing between storm manholes shall be four hundred (400) feet. 11-7 Minimum Pine Size. The minimum diameter of any gravity storm drainage main shall be 12" inches. Laterals may be S inch. Minimum Pipe Slope. The pipe slope shall be designed to provide minimum velocity of not less than 2.5 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, OIympic Foundry SM4913, 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 the current edition of the Standards for Design and Construction for the City of Kalispell, Montana, the Montana Public Works Standard Specifications, the current Manual on Uniform Traffic Control Devices, and The Subdivision Regulations of the City of Kalispell. All roads within a proposed subdivision shall be designed by a professional engineer and approved by the City Engineer. Upon completion of roadway construction, a professional engineer shall certify that the construction meets the requirements of the Standards for Design and Construction, Kalispell, Montana. Traffic Analysis. Developments contributing three hundred (300) or more vehicle trips per day to the City street system shall require a traffic impact analysis. A registered engineer shall submit to the City a traffic impact analysis report. This report shall state the existing traffic conditions for all impacted roadways, including the existing levels of service for each road. The report shall identify all negative impacts associated with the proposed development and shall thoroughly detail a mitigation plan for the negative impacts of the proposed development. The developer shall be responsible to maintain the level of service of the affected existing roadway system. The report shall also take into consideration other forms of transportation including bicycle and pedestrian. The Traffic Impact Study shall be completed in accordance with Montana Department of Transportation requirements and nationally accepted standards. The Traffic Impact Study will assess anticipated traffic impacts associated with the proposed development and recommend appropriate mitigation measures for the adjacent transportation network. Recommendations developed will be based upon nationally accepted traffic engineering principles, related resources, and professional engineering judgment. Cul-De-Sacs. All dead-end streets shall terminate in an approved cuI-de-sac. Where future street extension is proposed, a temporary cul-de-sac of adequate size as approved by the Fire Chief and City Engineer shall be provided. Unless otherwise approved by the City Engineer, roadways that terminate at a cul-de-sac shall have a maximum length of six hundred (600) feet. The cul-de-sac radius shall be forty seven feet (47') to the back of the curb and fifty eight feet (58') to the right-of-way. A five foot (5') boulevard, a five foot (5') sidewalk and one foot (1') shoulder is contained within the space between the back of curb and the right-of-way. Horizontal Alignment. Horizontal alignment of streets must ensure adequate sight distances. Street alignment shall be designed for a design speed of 30 miles per hour in accordance with the latest edition of AASHTO A POLICY ON GEOMETRIC DESIGN OF HIGHWAYS AND STREETS. Collector and Arterial Streets. Location of collector and arterial streets shall comply with the Kalispell Growth Policy or any other major street and highway plan adopted by the Flathead County Board of County Commissioners and/or the City of Kalispell. The development of frontage roads or shared accesses serving new developments shall be used along collectors and arterials rather than the use of individual driveways or approaches. 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 to the Public Works Department 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 that has been landscaped with in accordance with the Kalispell Street Tree Ordinance and a plan approved by the Kalispell Parks and Recreation Department. 1 J Road Design Standards for Local Subdivision Streets DESIGN STANDARDS ARTERIAL COLLECTOR LOCAL RURAL Right -of -Way 80 ft. 60 ft. 60 ft. 60 ft. Pavement Width As approved by 34 fU 28 ft.' 24 ft' City Engineer Maximum Grade 8% 8% 8% 8% Cul-de-sac turnaround: a. Back of curb radius 55 ft. b. Minimum right-of-way radius 66 ft. C. Maximum length' 600 fY. On street parking govemed by City of Kalispell Subdivision Regulations. Distance to be measured from the centerline of the intersection to the center point of the cul-de-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 750 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 straight tangent grade of approach to any intersection shall not exceed 2% for a distance of 60 feet as measured from edge of transverse pavement 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 Building Department (Residential Site Plan), the Site Development Review Committee (Development Submittals) or the Public Works Department (Application for Driveway Construction) prior to beginning construction. DS -07 Placement of Utilities. Only water, sewer and storm sewers may be placed within the street right-of-way. No underground utilities, except service sweeps from the utility trench to the street lights, utility boxes, pedestals, vaults, or transformers shall be placed in the boulevard between the back of curb and sidewalk or within a sidewalk itself. No utility boxes, pedestals, vaults or transformers shall be placed within the boulevard, the radial extension of an easement, proposed roadway, or access way to any City facility. All applicable laws, rules and regulations of appropriate regulatory authority having jurisdiction over utilities shall be observed. Street Li htin . 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 Public Works Department 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 illumination levels shall include light loss factors relating to lamp lumen depreciation. The minimum average maintained illumination shall be 0.3 foot -candies 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. In order to achieve this illumination level, for example, a 30 foot light pole using a 100 watt high pressure sodium light (100 W HPS) and a Type III lens, at approximately 300 foot intervals will achieve the required level of illumination. If an alternate light type, pole height or fixture is proposed a photometric plan small be submitted to the Kalispell Public Works Department demonstrating that the proposed plan achieves the illumination levels stated above. 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. H-12 SECTION III CONSTRUCTION STANDARDS CS-01 Protect Requirements. Contractors installing water, sanitary sewer, storm sewer and roadways or any other public improvements shall be subject to the following requirements: Construction Contractor Registration. Any Contractor working within an existing Public Right -of -Way or Easement shall be registered with the Montana Department of Labor and Industry, Employment Relations Division. Insurance and Bonding. Insurance and bonding shall be in accordance with Section GP-07 and GP-08, as applicable. Pre -Construction Conference. Prior to any construction start a preconstruction conference shall be held. The Public Works Department, the Project Engineer, the Owner, and the Contractor shall be represented. Items to be discussed at the pre -construction conference are construction schedule, shop drawing submittals, utility installation, materials testing, quality control, maintenance bond, and other items as may be necessary. Shop Drawing Submittal. If the proposed items to be installed differ from the approved plans and specifications, shop drawings shall be submitted for review not later than ten (10) business days prior to the proposed installation. CS-02 Construction Standards. All water, sanitary sewer, storm drainage, and roadway systems, or any other construction of infrastructure within the public right-of-way or easement, shall be constructed, inspected, and tested in accordance with the current edition of The Montana Public Works Standard Specifications and the Standards for Design & Construction of the City of Kalispell and other standards referenced elsewhere in this document. With respect to the design and/or construction of public facilities, any conflict(s) or difference(s) between the Montana Public Works Standard Specifications, the City of Kalispell Subdivision Regulations, and the City of Kalispell Standards for Desi and Construction shall be resolved in favor of the City of Kalispell Standards for Design and Construction. Underground Utilities. All underground electrical, gas, phone, and TV cable lines must be installed at least three (3) feet horizontally from water, sanitary sewer and storm sewer mains and services. CS-03 Construction Inspection, Testis and Quality Control A Professional Engineer, or his designated representative, shall provide construction inspection and testing as required. Inspection and testing shall be in accordance with the current edition of the Montana Public Works Standard Specifications and the Standards for -Design and Construction, Kalispell, MT. The following quality control procedures will apply to all utility and roadway construction projects. The City reserves the right to conduct independent quality control testing at the City's expense during any phase of the construction. The Contractor shall bear the expense of failed tests and the expense of bringing the material into conformance with the required specifications. All water main valves and fittings, fire hydrants, sewer manholes, wet wells and sewer/water main crossings shall be inspected and approved by the Professional Engineer, or his designated representative, prior to backfilling. 2. A Professional Engineer, or his designated representative, shall be present for all tests required in Section 02660 and Section 02730 of the Montana Public Works Standard Specifications. A written record of all test results shall be submitted to the Public Works Department. 3. A Professional Engineer, or his designated representative, shall provide the Public Works Department with photocopies of daily inspection reports, including Proctors and compaction test results for all projects. These reports shall be submitted on a weekly basis. The following minimum compaction testing procedures shall apply to all utility and roadway construction projects. An independent testing laboratory shall be retained to provide the following tests and frequency_ Random longitudinal test locations are required. The following are minimum compaction test requirements. The Professional Engineer, or his designated representative may require additional tests. For projects containing less than 300 linear feet of improvements, a minimum of one compaction test for each improvement shall be required for the improvements listed below. 1. Utility Trenches and Underground Structures: For trenches up to eight (8) feet in depth, density tests shall be taken at twelve (12) inches above the pipe at one-half the trench depth and at the surface. For trenches greater than eight (8) feet in depth, density tests shall be taken at twelve (12) inches above the pipe, at one-third and two -third the trench depth levels, and at the surface. The minimum density shall be 95% Standard Proctor, ± 3% optimum moisture. Horizontal Frequency: 1. Utility Mains — One set of tests per 300 feet. 2. Service Lines — One set of tests per three (3) services per utility type. 3. Open Pit -- Minimum of one test (Open Pit — at each manhole, water valve, storm inlet, curb inlet, vault, etc.) Each test location shall be separated horizontally from a prior test location. 2. Street sub grade: All sub -base: 95% Standard Proctor, t 3% optimum moisture. One random density test, every 300 linear feet of street. M All crushed gravel base: 95% Standard Proctor, ± 3% optimum moisture. One random density test, every 300 linear feet of street. Television Inspection. The City of Kalispell reserves the right to inspect all underground utility systems by the use of a television camera prior to final acceptance. The City will perform the initial inspection at no cost to the contractor. Any deficiencies shall be corrected at the Contractor's expense. The cost of any sewer line cleaning or additional television inspection performed by the City shall be billed to the Contractor. CS-04 Record Drawinis and Project Acceptance. Upon project completion and before final acceptance, a Professional Engineer shall certify to the City that the construction of the public utilities and roadways meets the requirements of the approved construction documents. The Engineer shall submit one set of record drawings (hard copy and DWG digital format) and one set of the test results as required under Section CS-03 of these standards to the Public Works Department. The City will not accept the project until record drawings and test results have been approved by the City Engineer. The two year maintenance guarantee period will begin on the date stated in accordance with Section GP-08 Maintenance Bond for New Infrastructure. CS-05 Two Year Guarantee Inspection. The Project Engineer, or his designated representative, shall conduct a two year guarantee inspection, to be attended by a representative from the Public Works Department. The inspection shall take place not less than ninety (90) days prior to the expiration date of the Maintenance Bond. The maintenance bond will be released when all deficiencies have been corrected to the satisfaction of the City Engineer. The City Engineer, the Project Engineer, or his designated representative, shall notify the Principal as listed in the Maintenance Bond of any work found to be not in accordance with the approved construction documents. The Principal shall restore the work to meet the requirements of the approved construction documents prior to the release of the Maintenance Bond. The City expressly reserves the right to draft the Maintenance bond for repairs not completed by the Owner, Developer, or Contractor within thirty calendar days of being advised that repairs are required. CS-06 Boulevard Landscaping. The Contractor shall place a minimum of 4" of topsoil within the boulevard. The finished surface of the topsoil shall provide adequate drainage from the top of the sidewalk to the top of the curb. Topsoil shall be fertile, natural loam surface soil, free of clay, weeds, roots or stones larger than one inch in any dimension. Boulevard landscaping shall be placed in accordance with the Kalispell Street Tree Ordinance and a plan approved by the Kalispell Parks and Recreation Department. 1113 w z _j :il: - 0 71 O � SI LANDSCAPING 30' 17 2, 5, , 1 SIDEWALK LANDSCAPING Q 4" ASPHALT - DENSITY AND SURFACE REQUIREMENTS SHALL BE IN ACCORDANCE WITH MPWSS SEC 02510 PARAGRAPH 3.28 2a 6" CRUSHED GRAVEL BASE, -3/4" DIAMETER095% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T--99 © 15" SELECT SUB-BASE@95% DENSITY (± 3% OPTIMUM MOISTURE) 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 UTILITIES, OR OTHER REQUIREMENTS. 3. THE MAXIMUM GRADE SHALL BE 8%. 4. ON STREET PARKING GOVERNED BY CITY OF KALISPELL SUBDIVISION REGULATIONS. 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. CONSTRUCTION STANDARDS COLLECTOR STREET I SD-tl CITY OF KAUSPELL „r C J LLJ 71 LLd O m L.! W to 2 LW [-51— 2, 5, 2, 14`tn 14' 28 2+ 5' 2, w 2% 2% �� 2% SIDEWALK SIDEWALK LANDSCAPING LANDSCAPING Q 4” ASPHALT — DENSITY AND SURFACE REQUIREMENTS SHALL BE IN ACCORDANCE WITH MPWSS SECTION 02510 PARAGRAPH 3.28 ® 6" CRUSHED GRAVEL BASE, —3/4" DIAMET ER®95% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 © 9" SELECT SUB—BASE@35% DENSITY (+ 3% OPTIMUM MOISTURE) 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 UTILITIES, OR OTHER REQUIREMENTS. 3. THE MAXIMUM GRADE SHALL BE 8%. 4. ON STREET PARKING GOVERNED BY CITY OF KALISPELL SUBDIVISION REGULATIONS. 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. CONSTRUCTION STANDARDS I LOCAL STREET ISO-2 CITY OF KALISPELL 4" 3 0 0 2' MIN 12' MI 4" Q 4" ASPHALT -- DENSITY AND SURFACE REQUIREMENTS SHALL BE IN ACCORDANCE WITH MPWSS SEC 02510 PARAGRAPH 3.28 ® 6" CRUSHED GRAVEL BASE, —3/4" DIAMETER095% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 © 9" SELECT SUB—BASE095% DENSITY(± 3% OPTIMUM MOISTURE) PER AASHTO T-99 Q 4" CRUSHED GRAVEL BASE, —3/4" DIAMETER@95% DENSITY (± 37. OPTIMUM MOISTURE) PER AASHTO T-99 1. THIS CROSS—SECTION MAY BE USED ONLY WHEN THE AREA ADJACENT TO THE PROPOSED DEVELOPMENT DOES NOT HAVE CURBING OR ESTABLISHED STORM DRAINAGE SYSTEMS. THIS CROSS—SECTION MUST BE APPROVED BY THE CITY COUNCIL PRIOR TO INCORPORATING INTO THE DRAWINGS. 2. 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. 3. THE WIDTH OF THE PAVEMENT WILL DEPEND ON LOCAL CONDITIONS SUCH AS WIDTHS OF EXISTING STREETS IN THE AREA, ANTICIPATED TRAFFIC VOLUME, FUTURE EXTENSIONS, ETC. 4. THE WIDTH OF THE RIGHT—OF—WAY MAY BE INCREASED DUE TO UTILITIES, OR OTHER REQUIREMENTS. 5. ON STREET PARKING GOVERNED BY CITY OF KALISPELL SUBDIVISION REGULATIONS. 6. THE MAXIMUM GRADE SHALL BE 8ia C0NCIIY OF KALISPELLRDS I RURAL ROAD I SD-3 � 3 2O' s' 6' 21 Ax. 2 m 1 e n e e e e n n e eaeeenep o0o a oeoaapooaooeoeoaoeoeopaaoeoeoeeaoaoaoaoaoeopoa aao ee Q RESIDENTIAL PAVED: 4" ASPHALT — DENSITY AND SURFACE REQUIREMENTS SHALL BE IN ACCORDANCE WITH MPWSS SECTION 02510 PARAGRAPH 3.28 (2) 6- CRUSHED GRAVEL BASE, —3/4" DIAMETER095% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 p RESIDENTIAL- 9" SELECT SUB--BASE095% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 RESIDENTIAL ALLEY 10' 1 O' 2�AX. 2&-MAX aa00aa Oa a peae00000000pnO00npapapapapapapbppOppa00ee0a Q BUSINESS.. 4" ASPHALT — DENSITY AND SURFACE REQUIREMENTS SHALL BE IN ACCORDANCE WITH MPWSS SECTION 02510 PARAGRAPH 3.28 Q 6" CRUSHED GRAVEL BASE, —3/4" DIAMETER®95% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 ® BUSINESS: 15" SELECT SUB—BASEA95% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 BUSINESS DISTRICT ALLEY URBAN DESIGN STANDARD ALLEY SD-4 }f 1 R4 21f 118 e. a 1201 A O pp 4} d 44 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 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 SPE13FIE D MINIMUM DEPTH. 3. VISIBLE EDGES SHALL BE FINISHED TO A RADIUS OF 1/4". 4. 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". 5. INDIVIDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHALL BE SUBMITTED TO THE C 17Y FOR REVIEW. 6. 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 95% DENSITY L 3% OPTIMUM MOISTURE) PER AASHTO T-99. CONSTRUCTION CI'h' OF KALISPELLRDS ( CURB AND GUTTER I SD-5I 15*1 __ 74 1„ 24 , 1---� 4•..f_ a 4 v e 4 ,� I 2» a ' 24" 1. 1/2" EXPANSION JOINT MATERIAL. SHALL BE PLACED AT EACH POINT OF CURVATURE AND POINT OF TANGENCY. 2. CONTRACTION MINTS SHALL LE RACED AT EVERY IN OF CURB LENGTH AND SHALL HAVE A MINIMLNM 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. CONCRETE SHALL. BE M-4000 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 40DO PSI, 6% TO B% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". S. INDIVIDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHALL BE SUBMITTED TO THE CRY FOR REVIEW. 6. 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 95% DENSITY L 3% OPTIMUM MOISTURE) PER AASHTO T-99. 7. THIS CRIB DOES NOT MEET HANDICAPPED ACCESS REQUIREMENTS AND SHALL NOT BE USED FOR ACCESS RAMPS. CONSTRUCTION STANDARDS CITY OF KALISPELL DRIVE OVER CURB & GUTTER SD-6 m 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 SMALL HAVE A MINIMUM DEPTH OF 3/4" AND A MINIMUM WIDTH OF 1/8". CONTRACTION JOINTS SHALT. 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. CONCRETE SWILL BE M-4IX0 WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENGTH OF 4000 PSI, 6% TO 8% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". 5. INDIVIDUAL CONTRACTORS FORMS MAY VARY SLIGHTLY FROM THIS PATTERN. PATTERNS DIFFERING MATERIALLY FROM THE ABOVE DIMENSIONS SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 6. FOUR INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE CURB FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 95% DENSITY (± 3% OPTIMUM MOISTURE) PER AA_SHTO T 99, CONCITY OF KALISPELLRDS I STRAIGHT CURB I SD-71 w m W O SIDEWALK (4" THICK EXCEPT AT DRIVEWAYS WHERE THE SIDEWALK SHALL BE 6" THICK, CS O O tl U g O 0 P < pO0Otl w O m 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-4CW WITH 3/4" MAXIMUM AGGREGATE, MINIMUM 28-DAY STRENG- H OF 4000 PSI, 6% TO 8% AIR ENTRAINMENT, AND MAXIMUM SLUMP OF 4". 5. SIX INCHES OF CRUSHED GRAVEL BASE MATERIAL, -3/4" DIAMETER IS REQUIRED FOR THE SIDEWALK FOUNDATION. THE BASE MATERIAL SHALL BE COMPACTED TO 95% DENSITY (+ 3% OPTIMUM MOISTURE) PER AASHTO T-99. CONSTRUCTION STANDARDS CITY OF KALISPELL SIDEWALK ' 5'R 5 BOULEVARD ------------- A CONCRETE OR ASPHALT --------- ------ SIDEWALK FLOWLINE AND-CUTTER- GURB 5D--4 OR 50-5) A }- EXPANSION JOINT , >- zz 00 zz 00 �= ❑m F-- m z� < U z� < U I I cn Ln � O w ry Q > 6" CONCRETE W 6" BASE MATERIAL -5 rMA OR 4' ASPHALT W 6 BASE MATERIAL 6 s, BASE MATERIAL SECTION A -A BASE MATERIAL SHALL BE CRUSHED GRAVEL, -3/4" DIAMETER COMPACTED TO 95% DENSITY (-± 3% OPTIMUM MOISTURE) PER AASHTO T-99 CONSTRUCTION STANDARDS CITY OF KALISPELL DRIVEWAY DETAIL FOR CURB &GUTTER SD-9 c , 5' 691 Q w 0 © Elf, cf) Q M X i U CONCRETE Off (ASPHALT w 61I111FIT »:1 im aLVITl I a�� hil 6" CONCRETE W 6" BASE MATERIAL OR 4 ASPHALT W 6 BASE MATERIAL 1" VERTICAL EXPOSURE ACROSS DRIVEWAY SECTION 6 BASE MATERIAL SECTION A —A BASE MATERIAL SHALL BE CRUSHED GRAVEL, -3/4" DIAMETER COMPACTED TO 95% DENSITY (± 3% OPTIMUM MOISTURE) PER AASHTO T-99 CONSTRUCTION STANDARDS DRIVEWAY DETAIL FOR STRAIGHT CURB SD-10 CITY OF KALISPELL I - fl� -�' "'� VL.rllULt l tKAt.:KIIVb 1--AU 14" THICKNESS OF 4 - S INCH STONE MIN LENGTH MIN WIDTH �C 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. CONSTRUCTION STANDARDS CITY OF K ALI SPELL VEHICLE TRACKING CONTROL ISD-11 HUB OR BELL OF EQUAL DIAMETER AS SER' THIS TYPE OF CONNECTION SHALL BE USED ON EXISTING 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. 1 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. EXISTING LINES LESS THAN 15 INCH DIAMETER SHALL BE TAPPED WITH AN APPROVED, COMMERCIALLY AVAILABLE TAPPING SADDLE. CONE TY OF KALISPELL STANDARDS STORMS RVICE CONNECTIONS SD-12 w z O J r z w SIDEWALK ,Ld LANDSCAPING 5' ui MUELLER 300 SERIES CORP. STOP MUELLER 300 SERIES CURB STOP SET CURB BOX AND METER BOX AT FINISHED GRADE MUELLER H-10308 CURB BOX MUELLER/HUNT THERMAL -COIL METER BOX WITH DUAL CHECK VALVE BACKFLOW PREVENTER, INSULATING PAD, AND CENTER LOCKING LID. FILTER FABRIC METER BOX INSULATION PADS SHALL BE PROVIDED AS FOLLOWS: 3/4" METER - 15" INSULATION PAD 1" METER - 18" INSULATION PAD NOTE: METER BOXES ARE REQUIRED WHERE METERS CANNOT BE INSTALLED IN FROST PROOF AREAS WITHIN THE STRUCTURE. CONSTRUCTION STANDARDS CITY OF KALISPELL WATER SERVICE LINE 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 ACKFILL .. i.- BEDDING, HAUNCHING & INITIAL PACKFILL 1.5" TO 3.5 " DIAMETER CRUSHED STONE TO STABILZE UNSTABLE FOUNDATION ALL PIPE BEDDING AND TRENCH BACKFILL SHALL BE COMPACTED TO 95% DENSITY (± 3% OPTIMUM MOISTURE) 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 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" CONSTRUCTION STANDARDS TYPICAL UTILITY TRENCH CITY OF KALISPELL SIGN SPECIFICATIONS 18" MINIMUM BACK OF CURB TO EDGE OF SIGN ALL SIGN BLANKS SHALL BE .080 GAUGE FLAT ALUMINUM STOCK. STREET NAME SIGN BLANKS SHALL BE 9" IN HEIGHT. LENGTH SHALL BE DETERMINED BY sTEET DAME THE STREET NAME. STOP SIGN FACES SHALL BE 3M HIGH INTENSITY 30" STOP SIGN GRADE REFLECTIVE SHEETING OR APPROVED EQUAL. STREET NAME SIGN BACKING SHALL BE 3M GREEN 3277 ENGINEER GRADE REFLECTIVE SHEETING OR APPROVED EQUAL. 2" RIGID GALVANIZED PIPE 10' LONG STREET NAME SIGN LETTERING SHALL BE 3M ti 2" ID 2 318" OD WHITE 3290 ENGINEER GRADE REFLECTIVE SHEETING OR APPROVED EQUAL. LETTERING 2 SHALL BE 6" HIGH IN CAPITAL LETTERS. SIGN POSTS SHALL BE INSTALLED PLUMB STOP SIGNS SHALL BE ATTACHED TO THE SIGN LLI POST WITH A U-BOLT STYLE SIGN MOUNTING CLAMP. STREET NAME SIGNS SHALL BE ATTACHED TO THE TOP OF THE SIGN POST WITH A ROUND CAP Z SIGN HOLDER WITH A 6" LONG MOUNTING BRACKET, A 6" LONG 90' CROSSPIECE SHALL 2" GALVANIZED COUPLING FLUSH BE USED FOR DUAL SIGN APPLICATIONS. WITH TOP OF CONCRETE BASE 2" GALVANIZED PIPE 22" LONG WITH COUPLING FOR BREAKAWAY APPLICATION. �._ a 12" DIA. X 24" DEEP 3000 PSI CONCRETE BASE 112" X 4" HEX BOLT ANCHOR Em CONSTRUCTION STANDARDS I STREET SIGNS SD-15 CITY OF KALISPELL n X w F- LJ O U nz Z) V) ©D x cr cp Q U © m 2 U _U O � 2 U x OLL- r� zo Lli Ld Q aLL- LLJ • 31 m u W Cn CONSTRUCTION STANDARDS CITY OF KAUSPELL STREET INTERSECTION GUTTER ISD-16 4PP ri IR / 5' SIDEWALK A� C OVI(, � Fo Aso �9 C AN 84 X 24" TRUNCATED CONE SECTION SHALL BE INSTALLED IN ACCORDANCE WITH THE ADA ACT. 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 (2.00%). 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 (2.00%) IN ALL DIRECTIONS. 5. ALTERNATE DESIGNS AND LOCATIONS SHALL MEET THE REQUIREMENTS OF THE AMERICANS WITH DISABILITES 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. CONSTRUCTION STANDARDS I PEDESTRIAN RAMP �D_17 CITY OF KALISPELL