The URL can be used to link to this page

Home My WebLink About069-94 SP Sanitary Sewer Specoulo Fal MAIL WINO AIL pI AAfT 1NLVi, / 11EOUIIEE0 r LOCK COM. AALQO F �T l" LOCATION ounloc a rule Q o V e�2 FOR DIA WC" M Win FW ,PMIAw GRINDER PUMP WITH PIT DETAIL rfM GATE T EMGE M><. SANITARY SEWER SYSTEMS The work within these specifications Include all sanitary sewers, manholes, catch basins cleanouts, and related items, including excavating and backf ll ng, necessary to complete the work shown on the drawings, starting five feet outside the building walls. The ends of sewers shall be tightly plugged or capped at the terminal points, adjacent to buildings, pending the connecting of all such lines to the building dram as specified in the plumbing specifications and architectural drawings. MATERIALS: A. Sanitary Sewers: 1. All gravity plastic sewer pipe and fittings shall conform to ASTM D3034, SDR -35. The minimum cell classification for P.V.C. and P.V.C. truss pipe shall be 12454-B or 12454-C. 2. ABS Sewer Pipe and fittings shall conform to ASTM D2680 latest revision. If using truss pipe, joints shall be gasket type. 3. The flow channels for the sanitary sewer manholes shall be u -shaped with the benchwalts extending to the crown of the incoming and outgoing pipes. 4. Joints for P•V.C. and P.V.C. truss pipe shall be compression type flexible gasketed joints. B: Manholes: 1. Precast reinforced concrete manhole sections shall conform to ASTM C-478 latest revision. 2. Castings shall be of uniform quality, free from blow holes, porosity, hard spots, shrinkage distortion or other defects. They shall be smooth and well -cleaned by shot blasting or some other approved method. They shat( be coated with asphalt paint which shall result in a smooth coating, tough and tenacious when cold, not tacky or brittle. 4. All castings shall be manufactured in accordance with ASTM A-48-83 Class 35B haveing a minimum tensile strength of 35,000 psi, and be true to pattern; component parts shall fit together in a satisfactory manner. Round frames and covers shat[ be of non -rocking design or shall have machined horizontal bearing surfaces to prevent rocking and rattling under traffic. At( castings shall be fully interchangeable. 5. All weights shall not deviate from the tolerances permitted by ASTM A48-83 'Standard Specifications for Gray Iron Castings), 6. Sanitary sewer frames and covers shall be type Neenah P -1712 -B -SP, Model 1022-IAGSMD with machined surface and Type F concealed pickhole. 7. Joints - manhole sections shat( be jointed with sealed 'o' rings. The 'o' rings shall meet ASTM C-433 latest revisions. APPLICATION: A. Permits and Codes: The intent of this section of the specifications is that the contractor's bid on the work covered herein shall be based upon the drawings and specifications but that the work shall comply with all applicable codes and regulations as amended by any waivers. Contractor shall furnish all bonds necessary to get permits for cuts and connections to existing sewers. B. Local Standards: The term 'Local Standards' as used herein means the standards of design and construction of the respective municipal department or utility company. C. Existing Improvements: Maintain in operating condition all cctive utilities, sewers and other drains encountered in the sewer installation. Repair to the satisfaction of the owner any damage to existing active improvements. D. Workmanship: To conform to all local, state and national codes and to be approved by all local and state agencies having jurisdiction. E. Trenching: Lay all pipe in open trenches, except when the local authority gives written permission for tunneling. Open the trench sufficiently ahead of pipe -laying to reveal any obstructions. The width of the trench shall be the inside pipe diameter plus 24 inches for 12 inches above the pipe. Sheet and brace trench as necessary to protect workmen and adjacent structures. All trenching to comply with occupational Safety and Health Administration Standards. Keep trenches free from water while construction is in progress. Under no circumstances toy pipe or appurtenances in standing watE�,r'. Conduct the discharge from trench dewatering to drains or natural drainage channels. F. Special Supports: Whenever, in the opinion of the Engineer, the soil at or below the pipe grade is unsuitobte for supporting sewers and appurtenances specified in this section, such special support, in addition to those shown or specified, shall be provided as the Engineer may direct and the contract will be adjusted. G. Backfilling: For a depth of at least 12 inches above the top of the pipe, backfill with granutor material free from large stones, rock fragments, roots or sod. Compact this backfill thoroughly, taking care not to disturb the pipe. For the remaining trench depth, backfill with earth or granular material containing stones or rocks not larger than 4 inches. Backfill under walks, parking areas, driveways and streets shot( be granular material only, thoroughly compacted, by approved methods. Trenches parallel to and within 5 feet of paved roadways shalt be constructed the some. H. Manhole inverts: Construct manhole flow channels of concrete, sewer pipe or brick, smoothly finished and of semi- circulor section conforming to the inside diameter of the connecting sewers. Make changes in size or grade gradually and changes In direction by true curves. Provide such channels for all connecting sewers at each manhole, I. Infiltration: Furnish necessary equipment to test sewers for infiltration. Infiltration rates shall not exceed the local standards. All sanitary sewer lines upon completion will be required to pass a low pressure air test, unless otherwise directed by the Indianapolis Department of Public Works. Infiltration under test sholl not exceed 200 gallons per inch on inside diameter of sewer pipe per mile of sewer in 24 hours and inclusive of all appurtenances within the section being tested such as manholes, house connections, etc. J. Flushing Sewers: Flush all sanitary sewers except building sewers with water to obtain free flow through each line. Remove all silt and trash from appurtenances just prior to acceptance of work. K. Plastic Sewer Pipe Installation: Plastic sewer pipe shall be installed in accordance with ASTM D232t per latest revision, and no plastic pipe shall exceed a deflection of 5%. L. Storm Water Connections: No roof drains, footing drains and/or surface water drains may be connected to the sanitary sewer systems, including temporary connections during construction. M. Waterline Crossing: Where water lines and sanitary sewers cross and water lines cannot be placed above the sewer with a minimum of 18 inches vertical clearance, the sewer must be constructed of water works grade ductile iron pipe with mechanical joints within 10 feet of the water line. N. Utilities: It shot[ be the responsibility of each contractor to verify all existing utilities and conditions pertaining to his phase of the work. It shall also be the contractors responsibility to contact the owners of the various utilities before work is started. The contractor shall notify in writing the owners or the engineer of any changes, errors or omissions found on these plans or in the field before work is started or resumed. ❑. Service Laterals (Gravity & Pressure) Individual gravity lot service lines shall be 6' in diameter and of material equal to the specified in A-2 of this section. Gravity service lines shalt be connected to the main sewer by a Wye at locations generally shown within these plans. Individual pressure lot service lines shall be 1 1/2' in diameter PVC SDR -26. Service lines shall be extended and capped at a point 5 feet beyond the right-of-way line or one pipe length for those services on the same side of the street as the main. The laterial shall be marked by a ten foot tong 2x4 placed at the end of the capped lateral and extend straight up out of the ground, an be painted green. P. New Sanitary Sewer Main Construction: Contractor to record dimensions of each service line stub from nearest downstream manhole measured along the sanitary sewer main. The locations of manholes and service lines along with any other construction changes are to be incorporated on the original construction drawings and 'Record Drawing' prints submitted to the City of Indianapolis and the engineer as soon after completion of construction as possible. STANDARD CURD COX - 011 VALVE 1% INCA SERVICE OR COX OR PVC — TAPPING SADDLE OR RISER AS DESIRED 45' STANDARD WYE FITTING AS DESIRED TO CONTRIBUTING UNIT E HOME O —PRESSURE MAIN CAP OR PLUG IV. INCH 45' ELL OR COLLECTOII SERVICE LATERAL FLOW GROUND ELEVATION CO ER 7"" LI<:y DEPTH VARIES i WITH DEPTH STANDARD CURB BOX, Of SEWER VALVE BOX OR PVC RISER FLOW IV, INCH FULL PORTED V, TURN VALVE TOCONTRIBUTING WNIT E IIOME PRESSURE COLLECTOR OR MAIN CAP 011 PLUG �.�. .' IF IVB IPHSEAVICE LINE CONCRETE OR GRANULAR SUPPORT MATERIAL Typical Service Line Connection GROUND ELEVATION GRANULAR MATERIAL (E INCH MINIMUM DEPTH) PRESSURE MAIN OR COLLECTOR LOCKING COVER OPTIONAL CONCRETE RING •v� v�-iii - 'D M INCH HOSE CONNECTION, THREADED PLUG OR CAP ARRANGEMENT 2 INCH SHUT OFF VALVE STANDARO IS' ELL FITTINGS Suggested Valve Box and Cleanout Arrangements at end of pressure main or collector branch CLEANOUTUSE STANDARD WYE OR TEE FITTINGS, WITH THREADED PLUGS UR CAPS) GROUND ELEVATION PROVIDE FOR ENTRANCE L AND EXIT OF PRESSURE SEWER THROUGH/ WALLS OF VALVE BOX AT ANGLES REQUIRED BY CHANGE UI DIRECTION, IF ANY CIEANOUTfUSE STANDARD WYE OR LEE FITTINGS, WITH THREADED PI UGS OH CAPS) PRESSURE MAIN on Cot LECTon GRANULAR MATERIAL , BEDDING FOR PIPE SUPPORT AND LEACHING OF GROUND WATER INFILTRATION LOCKING COVER 24 TO 38 INCHES (VARIES ACCORDING TO SIZE OF FITTINGS AND VALVES) __ :_,4 a fid• -� _moo f (Y� - - ��= =o moo• USE APPROVED CIRCULAR. PREFABRICATED METAL, FIBER OR CONCRETE ASSEMBLY WITH LOCKING COVER. VALVE BOX ASSEMBLY AND COVER SHOULD BE APPROPRIATE FOR LOADING CONOIT NS ANTICIPATED CLEANOUTUSE STANDARD WYE OR TEE FITTINGS, WITH THREADED PLUGS OR CAPS) Suggested Valve Box and Cleanout Arrangements along straight runs and at changes in direction OPTIONAL CONCRETE RING /FULL PORTED VALVE OF APPROPRIATE SIZE VARIES WITH DEPTH OF SEWER AS DICTATED BY FROST OR MECHANICAL PROTECTION �_F LOW EITHER DIRECTION CLEANOUT (USE STANDARD WYE OR TEE FITTINGS, WITH THREADED PLUGS OA CAPS) 8827 , W )00 STATE OF ,'�F�FrrrErrrr#��,` A ALLAN H. WEIHE, REG. P. E. INDIANA 18827