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GENERAL : SITE N O T E S : SITE GRADING : WATER DISTRIBUTION S Y S T E M : 1. Comply with the work safety practices specified by the Occupational Safety and Health 1. Detectable warnings are required on all public and private ramps. Place the detectable 1. Visit the site. Become familiar with the site and existing site conditions including 1. Separation of Water and Sewer: Construct sewer and water services in accordance with Administration (OSHA). Comply with all applicable local, state, and federal safety warnings at the back of curb. The ADA required truncated dome area shall be 24 inches available soil reports. Examine all local conditions at the site, and assume responsibility Minnesota Rules, part 4715.1710, subpart 2. Provide a minimum horizontal separation of regulations. OSHA prohibits entry into "confined spaces," such as manholes and inlets minimum in the direction of travel and shall extend the full width (4' wide typ.) of the curb as to the grades, contours, and the character of the earth, existing conditions, and 10 feet between all water and sewer lines. At water and sewer crossings, the bottom of (see 29 CFR Section 1910.146), without undertaking certain specific practices and ramp. The only acceptable texture for "detectable warnings" is truncated domes. All other items that may be encountered during excavation work above or below the existing the water pipe located within ten feet of the point of crossing must be at least procedures. Construction safety is solely the responsibility of the Contractor, who is also detectable warning surface installations shall be at minimum at least as non skid as the grades. Review the drawings and specifications covering this work and become familiar 12-inches above the top of the sewer. When this is not feasible, the sewer pipe solely responsible for the means, methods, and sequencing of the construction operations. surrounding pedestrian surfaces. Detectable warnings are to consist of raised truncated domes with the anticipated site conditions. material must conform to the requirements of Minnesota Rules, part 4715.170, subpart ARCHITECTS with a diameter of nominal 0.9", a height of nominal 0.2", and a center-to-center spacing of 2E. No joints or connections are allowed on the water line within 10-feet of the 2. Existing boundary, location, topographic, and utility information shown on this plan is from nominal 2.35". The truncated dome area shall contrast visually with the adjacent walking 2. Unless otherwise noted, all proposed grades shown are finished grades. Finished grades crossing. a field survey by Sunde Land Surveying, LLC dated 10/03/2018. surface. Use dark grey when the adjacent sidewalk is a light grey cement color. Use light at points between spot elevations or contours are determined by uniform slopes between grey when the adjacent sidewalk is a dark color. Install truncated domes and all related the given grades. All proposed spot elevations shown at curblines are to bottom of curb 2. Watermain Depth: Maintain 8-feet of cover over the top of the water lines to the finished (gutterline) unless otherwise indicated. grade. Verify elevation of proposed and existing water lines at all utility crossings. Install 3. Perform all construction work in accordance with State and Local requirements. surfaces according to the manufacturers specifications. Install Armor-Tile (equal.m Refer e.eom) the water lines at greater depths in order to clear storm sewers, sanitary sewers, or Cast In Place Truncated Dome Detectable Warning Surface Tile, or approved equal. Refe to 4. A licensed surveyor shall perform construction staking. The Contractor shall provide and ADA sections 4.7.7 and 4.29.2 for additional information. 3. At locations where new work connects to existing work, field verify existing elevations and other utilities as required. Include costs to lower water lines in the base bid, prior to beginning the new work. Match existinggrades at construction limits. be responsible for the staking. Verify all plan and detail dimensions prior to construction grades9 9 3. Disinfection: Disinfect all completed watermains in accordance with AWWA Standard C651. staking. Stake the limits of walkways and curbing prior to valvebox, maintenance hole, 2. Install and make operational all irrigation before commencing with landscaping.and catchbasin installation. Adjust valvebox and maintenance hole locations in order to 4. Remove all unsuitable material (organic soils, uncontrolled fill, debris, and natural or If the tablet or continuous feed methods are used, disinfect using with water that POPE ARCHITECTS,INC. avoid conflicts with curb and gutter. Adjust catchbasin locations in order to align 3. Designate all approved parking stalls with white 4 inch wide surface markings. Hatch artificial obstructions) in the zone from 1 m (3.28 feet) below the finished subgrade to contains at least 50 ppm of available chlorine in accordance with Minnesota Rules, part 1295 BANDANA BLVD N,SUITE 200 properly with curb and gutter. handicapped access aisles with white 4 inch wide painted stripes 18 inches on center and at finished subgrade in the proposed pavement areas. 4715.2250. Retain the treated water in the pipeline for at least 24 hours. Measure the ST.PAUL,MN 55108-2735 chlorine residual at the end of the 24 hour period. The free chlorine residual must be 45 degree angles to the stalls. (651)642-9200 I FAX(651)642-1101 5. Provide temporary fences, barricades, coverings, and otherprotections in order topreserve 5. Compact backfill in all utilitytrenches to 95% Standard Proctor maximum drydensityat least 10 mg/I measured at any point in the line. Measurement of the chlorine p y g p w.popearch.com existing items to remain, and to prevent injury or damage to person or property. 4. White surface markings (letters and symbols) shall be in conformance with the Standard (ASTM D698-78 or AASHTO T-99) from the pipe zone to within 1 m (3.28 feet) below concentration at regular intervals shall be in accordance with Standard Methods, AWWA Alphabets for Highway Signs and Pavement Markings, FHA (HTO-20). the finished subgrade, and 100% Standard Proctor maximum dry density in the final 1 m M-12, or using appropriate chlorine test kits. 6. The subsurface utility information shown on this plan is utility Quality Level D. This (3.28 feet). Provide density tests in backfills and fills placed beneath footings, slabs, quality level was determined accordingto theguidelines of Cl/ASCE 38-02, entitled andpavements. At least one compaction test is required for every100 feet of trench 4. Testing: Pressure test and perform bacteriological tests on all water lines under the YANIK COMPANIES 9 Y / 5. Provide fire lane signage as required by the Fire Department. P q supervision of the City Public Works Department. Notify the City at least 24 working "Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data." at vertical intervals not exceeding one foot. BHS INNSBRUOK hours prior to any testing. Pressurize the waterline to 1034-kPa (150-psi) gauge 6. Typical full size 90° parking stalls are 9' x 18' (non-handicapped) unless otherwise indicated. pressure (measured at thepoint of lowest elevation) bymeans of a pumpconnected to 7. Contact utilitycompanies for locations of allpublic andprivate utilities within the work 6. Compact all fill placed in pavement areas in accordance with MNDOT Standard P the pipe in a satisfactory manner. Maintain the test pressure for minimum of 2 boars. SENIOR HOUSING area prior to beginning construction. Contact GOPHER STATE ONE CALL at (651) 7. Portland cement concrete for curb and gutter and sidewalk shall be 4000 psi minimum 28 Specification 2105.3.F1 (Specified Density Method). Compact all fill placed under buildings 91 9 in accordance with the recommendations of the Geotechnical Engineer. Do not add water to the watermain in order to maintain the required pressure during the days compressive strength with 5.5% air entraining. Concrete aggregates shall be free of 9i 45 in the Minneapolis/St. Paul metro area, least 1-800-252-1166 elsewhere in water main pressure testing. The test section of pipe is acceptable with a pressure drop Minnesota for exact locations of existingutilities at 48 workinghours not includingorganic impurities, chert, shale, or other deletereious substances. of 14 kPa (2 psi) or less. NEW BRIGHTON MN ( 7. Comply with the requirements of O.S.H.A. 29 CFR, Part 1926, Subpart P. "Excavations , weekends and holidays) before beginning any construction in accordance with Minnesota 8. Construct all concrete sidewalks in accordance with MNDOT Specification 2521. All concrete and Trenches." (www.osha.gov) Statute 216D. Obtain ticket number and meet with representatives of the various utilities sidewalks shall be as indicated on the plans, but not less than 4" thick with 6 inch x 6 inch 5. Use Class 54 DIP for all 8" diameter watermain. Use Class 55 DIP for all 6" diameter at the site. Provide the Owner with the ticket number information. Gopher State One watermain. Use only stainless steel bolts and nuts on all watermain fittings, valves, and Call is a free service that locates municipal and utility company lines, but does not locate - #10/#10 wire size woven wire mesh reinforcing. 8. Construct all proposed sideslopes with grades not exceeding 3:1 (3 horizontal to 1 hydrants. private utility lines. Use an independent locator service or other means in order to obtain vertical), unless otherwise indicated. locations of private utility lines including, but not limited to, underground electric cables, 9. Preformed expansion joints using 0.5" thickness shall be placed at each end of curb radius, at 6. Use mechanical joint restraint devices for joint restraint on all watermain bends having a telephone, TV, and lawn sprinkler lines. intersections, and approximately every 200 feet. 9. Provide positive drainage away from buildings at all times. vertical or horizontal deflection of 22-1/2 degrees or greater, all valves, stubs, 10. Contraction joints shall be spaced at 10 foot intervals in the curb and gutter. 10. Test roll the building and pavement areas in the presence of the Geotechnical Engineer. extensions, tees, crosses, plugs, all hydrant valves, and all hydrants in accordance 8. Pothole to verify the positions of existing underground facilities at a sufficient number of Perform base preparation and test rolling prior to curb and gutter construction, placing with City requirements. Use "Series 1100 Megalug" manufactured by EBAA Iron Inc., locations in order to assure that no conflict with the proposed work exists and that 11. For exterior concrete slabs, unless otherwise indicated, provide expansion joints at 30 foot of gravel base, sand/gravel sub-base, bituminous stabilized base, or plant mixed Eastland, Texas, or approved equal, installed in accordance with manufacturer's sufficient clearance is available. intervals and at locations where the concrete surrounds or adjoins any existing fixed objects bituminous base on all street and pavement areas. Test roll the area between 300 mm recommendations for restraint on Ductile Iron Pipe. such as walks, walls, posts, curbing, steps, driveways, building foundations and other ridgid (12 inches) outside of the back of the curbs on either side of the paved areas. Use a 9. Where existing gas, electric, cable, or telephone utilities conflict with the Work, coordinate structures. Divide exterior slabs into square panels of uniform size generally containing not heavy pneumatic-tired roller, towed by suitable tractive equipment, with two wheels 7. At all valve locations which require a 12" or smaller valve, install gate valves which are more than 36 square feet of area. spaced not less than 1,800 mm (71 inches) apart (transverselycenter to the abandonment, relocation, offset, or support of the existing utilities with the appropriate P P center), tire of the compression resilient seated (CRS) type. Use American Flow Control's Series 2500 local utility companies. Coordinate new gas meter and gas line installation, electric meter size equal to 18x24 or 18x25 (18" wide) inflated to a pressure of 650 kPa (94 psi), Ductile Iron Resilient Wedge Gate Valve, or approved equal. Gate valves shall conform to and electric service installation, cable service, and telephone service installation with the 12. Reinforce all concrete pavements adjacent to manhole and catchbasin castings in accordance Mi and a gross mass of the roller not less than 13.5 metric tons (14.9 tons) and not AWWA C509. Install cast iron valve boxes conforming to ASTM A48 at each valve location. local utility companies. with MNDOT Standard Plate No. 7112C. more than 13.7 metric tons (15.1 tons). Test roll the above specified area in a manner Valve boxes shall be the three-piece type with 5-1/4" shafts. Use Tyler 6860-G 13. Construct 2' taper at the free end of all concrete curb and gutter sections. such that each part of the area comes in contact with one of the tires at least once. with No. 6 base, or equivalent. Valve boxes shall have at least 6" of adjustment above 10. Arrange for and secure suitable disposal areas off-site. Dispose of all excess soil, waste Operate the heavy roller at a speed of not less than 4 km/h (2.5 mph) and not more and below finished grade. Drop covers on valve boxes shall be round and bear the word / �\ material, debris, and all materials not designated for salvage. Waste material and debris 14. Unless otherwise indicated, provide control joints, construction joints, and expansion joints in than 8 km/h (5 mph). The subgrade shall be considered unstable if, at the time that "WATER" cast on the top. Use Tyler 6860-G "Stayput" covers with extended skirt, or / F includes trees, stumps, pipe, concrete, asphaltic concrete, cans, or other waste material slabs on grade, sidewalks, and drives as specified in section 03300. the heavy roller passes over the subgrade, the surface shows yielding or rutting of more equivalent. (5u nd e\ from the construction operations. Obtain the rights to any waste area for disposal of than 50 mm (2 inches), measured from the original surface to the bottom of the rut. unsuitable or surplus material either shown or not shown on theplans. All work in Correct any soft spots or displacements which appear during the test rolling by O Engineering,vLL P 8. Use Mueller H is or Ford EM 2 7057, or approved equal, at all curb stop locations. disposing of such material shall be considered incidental to the work. All disposal must scarifying, aerating or watering, and recompacting as required to obtain stability; or by Stationary rod is required on all curb stops. lalY conform to applicable solid waste disposal permit regulations. Obtain all necessary excavating to solid material and backfilling with material suitable for base construction. permits at no cast to the OWNER. Remove material such as vegetation, rubbish, large stones, peat, and wet clay. Retest SEDIMENT CONTROL PRACTICES : the area after correction. 9. Fire hydrants shall be in accordance with the requirements of the local municipality. Do CONSULTING CIVIL ENGINEERS not connect hydrant drains to sanitary sewers or storm sewers. Do not locate hydrants10830 NESINTT AVENUE SOUTH 11. Straight line saw-cut existing bituminous or concrete surfacing at the perimeter of 1. Implement sediment control practices in order to minimize sediment from entering surface waters, 11. Perform soil correction procedures and compaction in accordance with the soils report. within 10 feet of sanitary sewers or storm sewers. When placing fire hydrants in pavement removal areas. Use saws that provide water to the blade. Tack, and match including curb and gutter systems and storm drain inlets. locations where the groundwater table is less than 8 feet below theground surface, plugSL iaszi es��3544 TELEPHONE F 052l8sr-1sis FAX all connections to existing bituminous pavement. 12. Coordinate inspection and approval of all subgrades within the building and pavement the hydrant drain holes and equip the hydrants with a tag stating the need for ,ww.sundecieNom 2. Install all temporary or permanent sediment control measures including silt fence at perimeter of areas with the Geotechnical Engineer. Coordinate inspection and approval of all fill pumping after use. 12. Relocate overhead power, telephone, and cable lines as required. Abandon and report construction, rock construction entrances, sediment filters, silt sacks, and sedimentation basins materials prior to placement within the building and pavement areas with the Geotechnical existingon-site wells and septic systems in accordance with Minnesota Department of >L rior to beginning site clearing, grading, or other land-disturbing activity. Engineer. Use only uncontaminated fill material. P Y P 10.Install detectable underground marking tape directly above all pvc, polyethylene, and other Health (MDH) requirements. 3. Establish sediment control practices on all down gradient perimeters before any up gradient land 13. Conduct all grading operations in a manner that minimizes the potential for site erosion. nonconductive underground utilities at a depth of 457 mm (18 inches) below finished disturbing activities begin. These practices must remain in place until final stabilization has been grade, unless otherwise indicated. Bring the tape to the surface at various locations in 13. All materials required for this work shall be new material conforming to the requirements established. 14. Grade the site to the finished elevations shown on the plan. Import embankment order to provide connection points for locating underground utilities. Install blue Rhino for class, kind, grade, size, quality, and other details specified herein or as shown on the material, or remove and dispose of excess excavation material as required. Provide TrYew Flex Test Stations, or approved equal, with black caps at each surface Plans. Do not use recycled or salvaged aggregate, asphaltic pavement, crushed concrete, 4. The timing of the installation of sediment control practices may be adjusted in order to waste areas or disposal sites for excess material including, but not limited to, excavated location. or scrap shingles. Unless otherwise indicated, the Contractor shall furnish all required accommodate short-term activities, but sediment control practices must be installed before the material or broken concrete that is not desirable to be incorporated into the work materials. next precipitation event even if the short-term activity is not complete. involved on this project. Determination of material import and export quantities is solely CO the responsibility of the Contractor and the cost of material import and export is 5. If the down gradient treatment system becomes overloaded, install additional up gradient sediment incidental to the contract. 14. Restore the public right-of-way. Replace any concrete curb and gutter, bituminous control practices or redundant BMPs in order to eliminate the overloading. E R O S O N PREVENTION PRACTICES : pavement, sidewalk, or vegetative cover damaged by the construction activity. Restore 15. In areas where fill is placed on slopes steeper than 5:1, horizontally bench the slopes in damaged turf with sod within the public right-of-way. The work area shown is general 6. Install check dams, diversion swales, or other grade control practices in order to ensure sheet order to increase the bond between the slope and the proposed embankment. . si and may need to be adjusted in the field. flow and prevent rills (for slope lengths greater than 75 feet with a grade of 3:1 or steeper). (e.g. with fla 9s, stakes, 9 ns, silt 0 1. Delineate the location of areas not to be disturbede 16. Structurally support exterior steps, stoops, and slabs at each entry into the building on fence, etc.) on the development site before work begins. CITY 15. Provide traffic control in accordance with local authorities and the latest version of the 7. Prior to beginning site clearing and grading, protect all storm sewer inlets that receive runoff frost-depth foundations bearing on footings at least 5 feet below final grade. Securely Minnesota Manual on Uniform Traffic Control Devices (MMUTCD), including the Field Manual order to expose the smallest practical area of soil at any given time. Implement from disturbed areas. In order to prevent sediment from entering the storm sewer system, seal tie the foundation walls to the footings with steel reinforcing so that any frozen soil 2. Avoid removal of trees and surface vegetation wherever possible. Schedule construction in 0 SUBMITTAL for Temporary Traffic Control Zone Layouts dated January2014. all storm sewer inlets that are not needed for site drainage during construction. Protect all adhering to them does not heave them off of their footings. Place insulation along all P Y Yappropriate construction phasing, vegetative buffer strips, horizontal slope grading, and other storm sewer inlets by installing sediment control devices, silt sacks, or staked silt fence. sides of the vertical foundation walls in order to prevent adfreezing of the backfill to the 2/14/20 Straw bales or fabric under the grates are not acceptable forms of inlet protection. Protect new walls. Provide at least 4 inches of void space between the bottoms of the step, stoop, other construction practices that minimize erosion. 16. Provide and maintain temporary drainage throughout construction until the permanent storm sewer inlets as they are completed. Maintain storm sewer inlet protection in place until all or slab and the underlying soil in order to allow for soil heave. Dowl all abuttingCt 3. sail or redisturbance, or temporary drainage system and structures are in place and operational. Install temporary ditches, sources with potential for discharging to the inlets are stabilized. walkways into the stoops. stabilization Following initial against disturbanceui due to rain, wind, and completerupning permanenta as soon mas possible, but piping, pumps, or other means as necessary in order to insure proper drainage at all in no case later than calendar days for waters, on all disturbed or graded times. Provide low points at building pads or roadways with positive outfalls. 8. Before beginning construction, install a TEMPORARY ROCK CONSTRUCTION ENTRANCE at each point 17. Tolerances: The completed subgrade under slabs and pavement areas shall be in areas cased including stormwaterthan7 management pond impaired wat This requirement does not apply 0 where vehicles exit the construction site. Use 25 mm (1 inch) to 50 mm (2 inch) diameter compacted, free from irregular surface changes, and fine-graded not more than 16 mm to those areas that are currently being used for material storage or for those areas on LL 17. Protect subgrades from damage bysurface water runoff. rock, MNDOT Standard Specification 3137 CA-1, CA-2, CA-3, or equal Coarse Aggregate. Place (0.05 feet) above or below the specified subgrade elevation. The completed subgrade in which grading, site buildin or other construction activities are activelyunderway. 9 the aggregate in a layer at least 152 mm (6 inches) thick across the entire width of the other areas shall be compacted, free from irregular surface changes, and fine-graded 9 9' 9' entrance. Extend the rock entrance at least 15 m (50 feet) into the construction zone. Use a not more than 31 mm (0.10 feet) above or below the specified subgrade elevation. The 4. Provide temporary grass seed cover on all topsoil stockpiles and other areas of stockpiled 18. Adjust all curb stops, valve boxes, maintenance hole castings, catchbasin castings, MNDOT Standard Specification 3733 Type V permeable geotextile fabric material beneath the completed top of topsoil shall be compacted, free from irregular surface changes, and excavated material in order to prevent soil erosion and rapid runoff during the cleanout covers, and similar items to finished grade. aggregate in order to prevent migration of soil into the rock from below. Maintain the entrance fine-graded not more than 16 mm (0.05 feet) above or below the specified finished construction period. Prolonged periods of open, bare earth without grass cover will not IHERE9Y CERTIFY THATTHIS PLAN, nEp in a condition that will prevent tracking or flowing of sediment onto paved roadways. Provide grade elevation. SPECIFICATION,OR REPORT WAS PREPARED periodic top dressing with additional stone as required. Close entrances not protected by be permitted. Stabilize all disturbed greenspace areas with a minimum of 4" topsoil ne ME ee UNDER my DIRECT SUPERVISION 19. Obtain and pay for all permits, tests, inspections, etc. required by agencies that have immediately after final subgrade completion. Seed and mulch, or sod and stake these AND THAT I AM A DULY LICENSED temporary rock construction entrances to all construction traffic. 18. Choose equipment and work procedures that will not disturb the subgrade soils. Route PROFESSIONAL ENGINEER UNDER THE LAWS jurisdiction over the project. The Contractor is responsible for all bonds, letters of credit, areas within 48 hours after completion of final grading work (weather permitting). construction traffic away from foundation soils and areas of pavements and slabs in O OF THE STATE OF MINNESOTA. or cash sureties related to the work. Execute and inspect work in accordance with all 9. If necessary, clean the wheels of construction vehicles in order to remove soils before the order to minimize soil disturbance. If the construction equipment causes rutting or soil local and state codes, rules, ordinances, or regulations pertaining to the particular type of 5. Stabilize all disturbed areas to be paved using early application of gravel base. work involved. vehicles leave the construction site. Wash vehicles only on an area stabilized with stone that pumping, then switch to other types of equipment or methods. The Contractor is solelyZ drains into an approved sediment trapping device. responsible for the proper selection of construction equipment in order to avoid disturbing 6. Stabilize the normal wetted perimeter of any temporary or permanent drainage ditch or Mike R.Keeler soils on the site. swale that conveys water from any portion of the construction site, or diverts water DATE:2/14/20 REG.... 40425 20.Perform all construction activity in accordance with the Minnesota Pollution Control Agency 10. Remove all soils and sediments tracked or otherwise deposited onto adjacent property, pavement GENERAL STORMWATER PERMIT FOR CONSTRUCTION ACTIVITY issued August 1, 2018 and all areas, sidewalks, streets, and alleys. Removal shall be on a daily basis throughout the duration 19. It is typical to abbreviate spot elevations. Elevations shown as 86.2 or 83.1 are around the site, within 200 lineal feet from the property edge, or within 200 feet from subsequent amendments thereto. of the construction. Cleanpaved roadways byshovelingor wet-sweeping. Do not drysweep. If understood to mean 886.2 or 883.1 respectively. the point of discharge to any surface water. Stabilization of this 200 feet must be q Y P g' completed within 24 hours of connecting to a surface water. necessary, scrape paved surfaces in order to loosen compacted sediment material prior to sweeping. Haul sediment material to a suitable disposal area. Street washing is allowed only 7. Stabilize the remaining portions of any temporary or permanent drainage ditches or swales after sediment has been removed by shoveling or sweeping. within 7 calendar days for impaired waters after connecting to a surface water and STORM DRAINAGE : 11. Temporary Sedimentation Basins: Where 5 or more acres for impaired waters of disturbed soil construction in that portion of the ditch has temporarily or permanently ceased. 1. Unless otherwise indicated, use reinforced, precast, concrete maintenance holes and drain to a common location, install temporary (or permanent) sedimentation basins prior to the H D P E R E Q U R E M E N T S 8. Apply necessary moisture to the construction area and haul roads in order to prevent the Issues catchbasins conforming to ASTM C478, furnished with water stop rubber gaskets and runoff leaving the construction site or entering surface waters. spread of dust. and precast bases. Joints for all precast maintenance hole sections shall have confined, 1. Install dual-wall, smooth interior, corrugated high-density polyethylene (HDPE) pipe at Revisions: 12. Soil Stockpiles: Install siltfence or other effective sediment controls around all temporary sail rubber "0"-ring gaskets in accordance with ASTM C923. The inside barrel diameter shall locations indicated on the plan. High-density polyethylene (HDPE) storm sewers must not be less than 48 inches. stockpiles. Locate soil or dirt stockpiles such that the downslope drainage length is no less than meet ASTM F714 (see Minnesota Rules, Chapter 4714 and Installation Standard 1). 8 m (25 feet) from the toe of the pile to a surface water, including stormwater conveyances 2. All joints and connections in the storm sewer system shall be gastight or watertight in such as curb and gutter systems, or conduits and ditches unless there is a bypass in place for Y 9 9 9 the stormwater. If remaining for more than 7 days, stabilize the stockpiles by mulching, 2. Dual-wall, smooth interior, corrugated high-density polyethylene (HDPE) pipe shall accordance with Minnesota Rules part 4715.0700. Approved resilient rubber joints or vegetative cover, tarps, or other means. During street repair, cover construction soil or dirt conform to the requirements of AASHTO M252 for pipe sizes 4-inch to 10-inch waterstop gaskets must be used in order to make watertight connections to manholes, diameter. Dual-wall, smooth interior, corrugated high-density (HDPE) pipe catchbasins, and other structures. Cement mortar joints are not allowed. stockpiles located closer than 8 m (25 feet) to a roadway or drainage channel with tarps, and shall conform to the requirements of ASTM gF2306 for pipe sizes 12-inch to 60-inch protect storm sewer inlets with silt sacks or staked siltfence. q diameter. 3. RCP: Reinforced concrete pipe (RCP) and fittings shall conform to ASTM C76, Design C, 13. Silt Fence: Install silt fence along the contour (on a level horizontal plane) with the ends turned with circular reinforcing for the class of pipe specified. Use Class IV RCP for pipes 21" up (J-hooks) in order to help pond water behind the fence. Instal the silt fence on the uphill 3. All fittings must comply with ASTM Standard D3212. and larger. Use Class V RCP for pipes and smaller. Joints shall be Bureau of side of the supportposts. Provide apost spacing of 1.2 m (4 feet) or less. Driveposts at Reclamation type R-4, with confined rubber "0"-ring gaskets in accordance with ASTM PP p 9 4. Water-tight joints must be used at all connections including structures. C361. least 0.6 m (2 feet) into the ground. Anchor the silt fence fabric in a trench at least 152 mm (6 inches) deep and 152 mm (6 inches) wide dug on the upslope side of the support posts. 5. Lay all HDPE pipe on a continuous granular bed. Installation must comply with ASTM 4. PVC Pipe: Use solid-core, SDR-26, ASTM D3034 Polyvinyl Chloride (PVC) Pipe for Lay the fabric in the trench and then backfill and compact with a vibratory plate compactor. D2321. All sections of the corrugated HDPE pipe shall be coupled in order to provide - designated PVC storm sewer services 4 to 15-inches in diameter. Joints for all storm Make any splices in the fabric at a fence post. At splices, overlap the fabric at least 152 mm water tight joints. sewer shall have push-on joints with elastomeric gaskets. Use of solvent cement joints (6 inches), fold it over, and securely fasten it to the fence post. Silt fence supporting posts is allowed for building services. Solvent cement joints in PVC pipe must include use of a shall be 51 mm (2 inch) square or larger hardwood, pine, or standard T- or U-section steel 6. Perform deflection tests on all HDPE pipe after the sewer lines have been installed and primer which is of contrasting color to the pipe and cement in accordance with Minnesota posts. T- or U-section steel posts shall weigh not less than 1.8602 kg per meter (1.25 lb per backfill has been in place for at least 30 days. No pipe shall exceed a deflection of Rules, part 4715.0810, subpart 2. Pipe with solvent cement joints shall be joined with lineal foot). Posts shall have a minimum length of 1524 mm (5 feet). Pasts shall have 5%. If the test fails, make necessary repairs and perform the test again until PVC cement conforming to ASTM D2564. Lay all PVC pipe on a continuous granular bed. projections to facilitate fastening the fabric and prevent slippage. Geotextile fabric shall meet the acceptable. Supply the mandrel for deflection testing. If the deflection test is to be Installation must comply with ASTM D2321. requirements of MNDOT Standard Specification 3886 for preassembled silt fence, furnished in a run using a rigid ball or mandrel, it shall have a diameter equal to 95% of the inside continuous roll in order to avoid splices. Geotextile fabric shall be uniform in texture and diameter of the pipe. The ball or mandrel shall be clearly stamped with the diameter. 5. Testing: Test all portions of storm sewer that are within 10 feet of buildings, within 10 appearance and have no defects, flaws, or tears. The fabric shall contain sufficient ultraviolet Perform the tests without mechanical pulling devices. NOTES feet of buried water, lines, within 50 feet of water wells, or that pass through soil or (UV) ray inhibitor and stabilizers to provide a minimum two-year service life outdoors. Fabric water identified as being contaminated in accordance with the Minnesota Rules part color shall be international orange. 7. After installation, the underground stormwater storage system must pass a manometer 4715.2820. Test all flexible storm sewer lines for deflection after the sewer line has test with one inch of water column for five minutes in accordance with Minnesota Rules, been installed and backfill has been in place for at least 30 days. No pipe shall exceed 14. Install and maintain a siltfence backed by snow fence, wire mesh, or stiff plastic mesh part 4715.1115. a deflection of 5%. If the test fails, make necessary repairs and retest. reinforcement directly downstream of all storm sewer outfalls. 6. Draintile: In accordance with Minnesota Rules part 4715.2820, use perforated polyvinyl 15. Reinforce erosion control facilities in areas where concentrated flows occur (such as swales, chloride PVC (ASTM D3034) or corrugated polyethylene PE (ASTM F405) on all draintile ditches, and areas in front of culverts and catchbasins) by backing them with snow fence, wire 3-inches to 6-inches in diameter. Install draintile with MnDOT 3733 Type 1 geotextile mesh, or stiff plastic mesh reinforcement until paving and turf establishment operations have filter wrap or knit sock. been completed. Posts for the reinforcing fence shall be 100 mm (4 inch) diameter wood posts, 7. Use Neenah Foundry Co. R-1642 casting with self-sealing, solid, type B lid, or approved or standard steel fence posts weighing not less than 0.59 kg (1.3 Ibs) per lineal foot, with a equal, on all storm sewer maintenance holes. Covers shall bear the "Storm Sewer" label. minimum length of 762 mm (30 inches) plus burial depth. Space posts for the reinforcing fence at intervals of 3 m (10 feet) or less. Drive posts for the reinforcing fence at least 0.6 m (2 8. Install detectable underground marking tape directly above all pvc, polyethylene, and other feet) into the ground. nonconductive underground utilities at a depth of 457 mm (18 inches) below finished SHEET grade, unless otherwise indicated. Bring the tape to the surface at various locations in 16. Maintain all temporary erosion and sediment control devices in place until the contributing order to provide connection points for locating underground utilities. Install blue Rhino drainage area has been stabilized (hard-surfaced areas paved and vegetation established in M fiTrew Flex Test Stations, or approved equal, with black caps at each surface location. greenspace). Repair any nuling, gully formation, or washouts. After nal establishment of permanent stabilization, remove all temporary synthetic, structural, and nonbiodegradable erosion 9. Sieve pipe through masonry walls. and sediment control devices and any accumulated sediments. Dispose-of off site. Restore permanent sedimentation basins to their design condition immediately following stabilization of the site.