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HomeMy WebLinkAbout0989.97.5EARTHWORK 1 SCOPE OF WORK A Extent The work required under this section consists of all excavating, filling, rough grading and related items necessary to complete the work indicated on the drawings and described in the specifications 1 In general the items of work to be performed under this section shall include clearing and grubbing, removal of trees and stumps (where required), protection of trees to remain, stripping and storage of topsoil, fill, compaction and rough grading of entire site as indicated on the drawings. 2 Excavated material that is suitable may be used for fills All unsuitable material and all surplus excavated matenol not required shall be removed from the site The location of dump and length of haul shall be the Contractor's responsibility 3. Provide and place any additional fill moter,cl from off the site as may be necessary to Produce the grades required. Filt obtained from oft site shall be of kind and quality as specified for fills herein and the source approved by the Engineer & Owner. 4 The Contractor shall accept the site as he finds it and shall remove all trosh, rubbish and debris from the site prior to starting excavation B W,,rk not included The following items of related work ore spec led and included in other sections of these specifications 1 Excavation, grading and backfillrng for utility lines. 2 Storm drainage systems 3 Sanitary sewer systems 4 Wuter supply systems. 5 Drives ord paving 2. BENCHMARKS Maintain carefully all bench marks, monuments and other reference points, if disturbed or destroyed replace as directed by engineer. 3 STRIPPING OF TOPSOIL A Remove topsoil to o depth of 6 inches (or more if required) from the areas to be occupied by roads, walks, buildings, and parking areus Pile and store t:,psoil at a location where it will not interfere with construction operations. Top soil shall be reasonably free from sutsoil, debris and stones. 4 C- I',POSITION OF UTILITIES A Rules and regulations governing the respective utu ties sholl be observed in execut -ng oil work under this section B. It Shall 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 engineers of any changes, errors or omissions found on these plans or ,n the field before work •s started or resumes C Where active utilities ore encountered but not shown on the drawings, the Engineer shall be advised before work is continued. D Inactive and abandoned utilities encountered in excavating and grading operations shall be reported to the Engineer They shall be removed, plugged or copped as directed by the Erg nee - 5 SITE GRADING A Grades Do all cutting, filling, compacting of fills and rough grading required to bring entire protect area to subgrade as shown on the drawings Undercut open areas 4" for topsoil H Rough grading the toleronce for paved areas shall not exceed 0.10 feet above established subgrode ail other areas shall not exceed 0.10 feet plus or minus the established grade Provide roundings at top and bottom of banks and other breaks in ggrade All open areas shall be graded a minimum of 0 5% and a maximum of 3:1 slope. k C Subgrode shall be proofrolled with suitable equipment anal all spongy and otherwise unsuitable material shall be removed and replaced with suitable material D. Subgrade for streets and paved areas shall be compacted to 95% of modified proctor. E See PROJECT MANUAL and S, >ILS REPORT for requirements regarding undercutting and subgrode preparation for pavement F Ail fill material shall be formed from soil free of deleterious material Prior to placement of fill, a somple of the proposed material shall be submitted to the sods engineer for approval The fill material shall be placed in layers not to exceed 8" in loose thickness and shall be spread and compacted at the proper moisture content. G All fill material in areas outside of building and pavement areas shall be compacted lightly with each lift and protected from erosion Areas of building construction shall hove suitable fill material placed and compacted in accordance with the Soils Engineer's report (minimum 95% modified proctor). SANITARY SEWER SYSTEMS 1, SCOPE OF WORK The work under this section includes all sonitcry sewers, manholes, cleanouts, and related items, including excavating and bockfilling necessary to complete the work shown on the drawings, starting five feet outside the building wails. The ends of sewers shall be tightly plugged or copped at the terminal points, adjacent to buildings, pending the connecting of oil such lines to the building drain as specified in the plumbing specifications and architectural drawings. 2. MATERIALS A. Sanitary Sewers 1. All gravity plastic sewer pipe and fittings shall conform to ASTM 03034, SDR -35. The minimum cell classification for P.V.C. and Truss pipe shall be 12454 -8 or 12454 -C. 2. ABS sewer pipe and fittings shall conform to ASTM D2680 or latest revision. If using truss pipe, joints shall be gasket type. 3. The flow channels for the sanitary sewer manholes shall be u- shoped with the benchwolls 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 gosketed joints. B. Manholes Precast reinforced concrete manhole sections and steps 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 shotblosting or by some other approved method. They shall be tooted with asphalt paint which shall result in a smooth coating, tough and tenacious when cold, not tacky or brittle. 3. All,costings shall be manufactured in accordance with ASTM A -48 -83 Class 35B having o 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 shall be of non - rocking design or shall have machined horizontal bearing surfaces to prevent rocking and rattling under traffic. All castings shall be fully interchangeable. 4. All weights shall .not deviate from the tolerances permitted by ASTM A48 -83 "Standard Specifications for Gray Iron Castings ". 5 Joints - manhole sections shall be jointed with sealed "0" rings. The "0" rings shall meet ASTM C -443, latest revision. Pipe to manhole connections shall be resilient connectors in accordance with ASTM C -923. 3. APPLICATION A. Permits and Codes: The intent of this section of the specifications is that the contractors bid on the work covered herein shall be based upon the drawings and specifications, but that the work shall comply with oil applicable codes and regulations os 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 deportment or utility company. C. Existing improvements : Maintain in operating condition all active utilities, sewers and other drains encountered in the sewer installation. Repair to the satisfaction of the owner any damage existing active improvements. D. Workmanship: To conform to oil local, state and national codes and to be approved by oil local and state agencies having jurisdiction. E. Trenching: Loy 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 workers 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 lay pipe or appurtenances in standing water. 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 unsuitable for supporting sewers and appurtenances specified in this section, such special support, ;n addition to those shown or specified, shall be provided as the Engineer may direct and the contract will be adjusted. G. Backfilling: For a deptn of at least 12 inches above the top of the pipe, bockfill with granular moterial free from large stones, rock fragments, roots or sod. Compact this backfill thoroughly, taking core not to disturb the pipe. For the remaining trench depth, backfill with earth or granular material contoining stones or rocks not larger than 4 inches. Bockfill under walks, parking areas, driveways and streets shall be granular material only - thoroughly compacted by approved methods. Trenches parallel to and within 5 feet of paved roadways shall be constructed the some. H. Manhole Inverts: Construct manhole flow channels of concrete sewer pipe or brick smoothly finished and of semi - circular 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 o low pressure air test, unless otherwise directed by the local sewer utility. Said test shall be conducted according to NCPI Standard Method and shall be witnessed by on inspector authorized by the local sewer utility. Infiltration under test shall not exceed 100 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 D2321 per latest revision, and no plastic pipe shd,l exceed a deflection of 5 %. Perform mandrel tests as required by sewer deportment. t -, Iv 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 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 fine. N. Utilities: It shall be the responsibility of each contractor to verify oil 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. 0. Service Laterals: Individual lot service lines shall be 6" in diameter and of material equal to that specified in 2A of this section. Service lines shall be connected to the main sewer by a wye at locations generally shown within these plans. Service lines sholl be extended and capped.at o point 5 feet beyond the right- of -woy or one pipe length for those services on the some side of the street as the main. Sewer service lines shall be marked on the curb with red point and the end of the line with a wooden 2 x 4 above the ground, pointed 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 ore to be incorporated on the original construction drawings and "Record Drawing prints submitted to the sewer utility and the engineer as soon after completion of construction as possible. EROSION CONTROL A. CONTRACTOR SHALL AT ALL TIMES INSURE THAT EROSION CONTROL MEASURES PROTECTING EXISTING DRAINAGE FACILITIES BE IN PLACE PRIOR TO THE COMMENCEMENT OF ANY PHASE OF CONSTRUCTION OR LAND ALTERATION ACTIVITY. B. AS SOON AS AREAS ARE BROUGHT TO FINISH GRADE OR NEW DRAINAGE FACILITIES ARE CONSTRUCTED, CONTRACTOR SHALL CONSTRUCT THE APPLICABLE EROSION CONTROL MEASURES REOUIRED BY AND DELINEATED ON THE APPROVED PLAN. C. DURING SITE CONSTRUCTION ACTIVITY, THE CONTRACTOR SHALL: 1. CONSTRUCT ALL PERIMETER SILT BARRIERS. 2. INSTALL AND MAINTAIN CLEAN CRUSHED STONE AT ALL CONSTRUCTION ENTRANCES /EXITS TO THE SITE AND ANY AREAS USED FOR PARKING. 3. PREVENT CONSTRUCTION SILTS FROM LEAVING THE SITE AT ALL TIMES AND PLACE EXCAVTED MATERIALS AWAY FROM ANY DIRECT DRAINAGE FLOW RUNOFF FROM THE SITE. D. TEMPORARY VEGETATION SHALL BE INSTALLED WITHIN 7 DAYS FOLLOWING COMPLETION OF ANY PHASE OF GRADING. E. CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES DAILY AND REPAIR AS NECESSARY TO PREVENT EROSION. SILTATION SHALL BE REMOVED FROM AREAS WHERE FAILURES HAVE OCCURED AND CORRECTIVE ACTION SHALL BE TAKEN WITHIN 24 HOURS TO MAINTAIN ALL EROSiUN CONTROL. F. PERIMETER SILTATION BARRIERS SHALL BE MAINTAINED AT AL TiMES. G. AT SUCH TiME THAT ROUGH GRADING OF THE SITE IS COMPLETE AND DRAINAGE DIVERTS TO INLETS, INLET EROSION CONTROL MEASURES SHALL SE INSTALLED AT ALL INLET STRUCTURES TO KEEP PIPING SYSTEMS FREE OF SILTATION. H. EROSION CONTROL MEASURES, CONSTRUCTION ENTRANCES AND SILTATION BARRIERS SHALL. REMAIN IN PLACE UNTIL A GOOD STAND OF GRASS HA$ BEEN OBTAINED AND /OR PAVING OPERATIONS ARE COMPLETE. AFTER COMPLETE VEGETATIVE ESTABLISHMENT OR PAVING, ALL SILT IN PIPES. DETENTION FACILITIES AND SWALES SHALL BE REMOVED WITHIN 10 DAYS SO THAT FINISHED GRADES ARE NET. TURF PREPARATION I. ALL DISTURBED LAWN AREAS SHALL RECEIVE PERMANENT SEEDING AS SOON AS CONSTRUCTION AND WEATHER PERMIT. 2. ALL DISTURBED LAWN AREAS TO HAVE A MINIMUM OF 6 INCHES OF TOPSOIL (COMPACTED THICKNESS). 3. TOPSOIL TO BE FERTILE, FRIABLE, SANDY LOAM REASONABLY FREE OF SUBSOIL, CLAY LUMPS, STONES LARGER THAN 1/2 ", EXCESSIVE OUANITIES OF SMALL STONE /GRAVEL, BRUSH AND OTHER LITER. 4. SOLVE ANY SURFACE OR SUBSURFACE DRAINAGE PROBLEMS AND CONSTRUCT DERMANENT EROSION CONTROL STRUCTURES. 5. PERFORM THE MAJOR FILLING, SHAPING AND SMOOTHING OF GULLIED OR ERODED AREAS. 6. HAVE TOPSOIL TESTED TO CHECK pH AND NUTRIENT LEVELS. PROVIDE FERTILIZER AND SOIL AMENDMENTS AS REOUIRED TO MEET /EXCEED MiNiMUM REQUIREMENTS AS SUGGESTED ON SOILS TEST RESULTS. 7. WORK FERTILIZER AND SOIL AMENDMENTS INTO TOP 2 -3 INCHES OF THE TOPSOIL WITH A SMALL DISK, HARROW OR RAKE OPERATED ACROSS THE SLOPE AS MUCH AS POSSIBLE. 8. ROLL THE TOPSOIL WITH A WATER BALLAST ROLLER WEIGHING 100 TO 300 L85. DEPENDING ON SOIL TYPE. ROLL WITH TOPSOIL IN A SEMI -DRY CONDITION IN TWO OPPOSITE DIRECTIONS (RIGHT ANGLES). 9. RAKE OR SCARIFY AND CUT OR FILL IRREGULARITIES THAT DEVELOP AS REOUIRED AND AGAIN ROLL UNTIL AREA IS TRUE AND UNIFORM, FREE FROM LUMPS, DEPRESSIONS AND IRREGULARITIES. 10. SOW SEED WITH ADEQUATE EOUIPMENT AT A TIME WHEN LITTLE OR NO WIND IS BLOWING. BROADCAST HALF OF SEED IN ONE DIRECTION AND THE OTHER HALF IN THE OPPOSITE DIRECTION (RIGHT ANGLES). 11. COVER SEED TO A DEPTH OF 1/2" BY RAKING OR HARROWING. i PROVIDE A LIGHT LAYER OF STRAW OR HAY MULCH AT A RATE OF 1 TO 1 1 /2 TONS PER E. APPLY TACKIFIER TO STABUZE MULCH. 12. HYDROSEEDING IS AN ACCEPTABLE METHOD OF SEEDING. 13. KEEP TOPSOIL RELATIVELY MOIST UNTIL LAWN IS ESTABLISHED. 14. RESEED AREAS THAT DO NOT SHOW PROMPT GERMINATION AT 15 DAY INTERVALS UNTIL AN ACCEPTABLE STAND OF GRASS IS ASSURED. 15. LAWN AREAS WILL BE ACCEPTED AT FINAL INSPECTION PROVIDED THAT: LAWN AREAS ARE PROPERLY ESTABLISHED. LAWN IS FREE OF BARE AND DEAD SPOTS AND WITHOUT WEEDS. LAWN AREAS HAVE BEEN MOWED AT LEAST TWICE. 16. MANTAIN LAWN AREAS UNTIL ACCEPTED BY LANDSCAPE ARCHITECT /OWNER. MAINTENANCE TO INCLUDE WATERING, WEEDING, FERTILIZING AND MOWING. 17. PROVIDE UPON REQUEST FROM THE OWNER INSTRUCTIONS TO MAINTAIN THE LAWN FOR A COMPLETE SEASON. ALSO, IF R£OUESTED, PROVIDE HANDS ON TRAINING TO THE OWNER FOR SPECIFIC MAINTENANCE CHORES, SUCH AS FERTIUZING, SPRAYING, MOWING, ETC.. 0.11111 H11111j� ,`'� 4 89029 ik P STATE OF �'r, 'W,o lie, ''rio AIM •''�tV'�' Z y �', •. ., ..••� STORM SEWER SYSTEMS ►AVWQ WATER LMMS 1. SCOPE OF WORK 1. SCOPE OF WORK 1. SCOPE OF WORK The work under this section includes all storm sewers, storm The work required under this section includes oil exterior A. The work required under this section includes all water inlets. and related items, including excavating and concrete and bituminous paving and related items necessary to complete the work indicated on drawings and described in the cold water distribution lines, valves, meter pits, bockfrlling, necessary to complete the work shown on the specifications, including but not limited to: hydrants, and related items including excavating and drawings bockfrlling necessary to complete the work shown on 2. MATERIALS All drives, parking areas in contract limits the drawings. The end of water service lines shall Curbs and gutters be tightly plugged or copped at the terminal points A Storm Sewers Hancor 'HoU' P,pe or approved equal Sidewalks and concrete slabs, exterior steps pending the connecting to oil such lines of the in the building piping as specified plumbing With the following rements; quiredrawings- 1 4" through 10'' meeting AASHTO M2' 2 T�rpe S specifiwUons and architectural 12" through 36" meeting AASHTO M_94 Type S. 2 MATERIALS 42" through 48 meeting AASHTO MP6 -95 TYPE S A. Concrete: Concrete shall be ready -mixed and shall be a mix of proportioned fine and coarse aggregates 2. MATERIALS with Portland cement and water. Minimum cement 2. Gashets meeting ASTM D1056 Grade 2A2. content shall be 6 bogs per cubic yard of concrete and maximum water content shall be 5.5 U.S gallons A. Polyvinyl Chloride (PVC): PVC pipe, materials, 1 Fittings meeting AASHTO M252 or AASHTO Mi per sock of cement, including moisture in the and jointing shall conform to the requirements aggregate. Slump for normal weight concrete shall of the Indiana Plumbing Rules (675 LAC 5) and, "Recommended 4 Pipe and fitting materials shall be high density- polyethylene be a maximum of 4 inches and a minimum of 2 inches. where applicable, to Standards for meeting ASTM 83350 Cell Classification 324420C; or The slump of machine placed concrete shall be no Water Works" published by the Great Lakes - ASTM 03350 Type III, Class C, Category 4, Grade P33. less than 1-1/4 inches nor more than 3 inches. Upper Mississippi River Board of State Public Standard test ASTM C-143 shall be used to measure Health and Environmental Managers. slump. Minimum compressive strength of concrete at 28 PVC pipe must have the NSF (National Sanitation B Manholes: days shall De 4000 psi. All exterior concrete shall have Foundation) seal for potable water and be 1 Precast reinforced concrete manhole section: and air entroinment of 5% to 8% by volume per ASTM C -260, Retempering be rated to withstand the applied pressure. Solvent -weld fittings are not acceptable. steps shall conform to ASTM C -478 latest revision. of delivered concrete will not allowed. Concrete shall be composed of: Pipe shall meet or exceed AWWA, C -900, OR18 2 Cost rigs shall be of uniform quality, free from blow 1 Portland cement: conforming o ASTM C- 150, Type IA 9 B. Ductile Iron Pipe: Ductile iron pipe shall meet AWWA holes, porosity, hard spots, shrinkage distortion or or type IIIA. yp C -150 and C -151 Specifications. Pipe shall other defects. They shall be smooth and well- be cement lined per AWWA C -104. cleaned by shotblosting or by some other approved 2 Aggregates conforming to ASTM C -33. method. They shall be coated with asphalt point which shall result in a smooth tooting. Tough and 3. Water: Shall be free from injurious C. Copper Tubing: Shall be seamless, annealed copper tubing Federal Specification WW-T799. tenacious when cold, not tacky or brittle. They clear and amounts of oils, acids, alkalies organic materials complying with Fittings shall be wrought copper or cast bronze with shall be gray iron meeting ASTM A -48 latest Solder be of a composition revision. or other deleterious substances. solder joints. shall recommended by the manufacturer of the fittings. 3 Joints - manhole sections shall be jointed with B: Welded Steel Wire Fabric: Where required for concrete rubber type gaskets. The rubber type gaskets shall reinforcement shall conform to ASTM A185. D Fire HyYdronts: Shall comply with AWWA Specification meet ASTM C -443 latest revision C: Premoulded Joint Filler: Shall be non - extruding type C -502 and shall meet local standards and requirements, particularly as to nozzle diameters meeting ASTM D -544, except that premoulded joint filler and threads, direction of o�ening and dimensions of C Subdroins: used in concrete walk construction may be either non- operating and cap nuts. Fire Hydrants shall have one 1. Perforated plastic pipe subdroins shall conform to extruding or resilient. pumper and two hose nozzles. A valve opening not ASTM D 3034 SDR 35, ASTM D 2729, or ASTM F 405. less than 5 inches and o 6 inch inlet connection. D. Bituminous Pavement Materials: All materials proposed The length of the hydrant barrel shall be determined 3. APPLICATION for the construction of bituminous pavements shall comply by the specified depth of cover over the pipe. with the Indiana Deportment of Transportation Specifications. A. Permits and Codes: the intent of this section of E. Valves: All valves and stops shall have ends suited the specifications is that the contractor's bid on E. Compacted Aggregate Sub -base: Shall be crushed stone or or adapters shall be provided for the proper installation in the lines in which they ore located. the work covered herein shall be based upon the gravel. Crushed grove) shall be o minimum of 35% crushed Valves shall meet local standards or in the absence drawings and specifications but that the work shall moterial. Fines shall be limited to a maximum of 8% of of such standards, the following requirements. comply with all, applicable codes and regulations as the total Material shall be free from on excess of amended by any waivers. Contractor shall furnish flat, elongated, thinly laminated soft or disintegrated 1. Valves in cast iron pipe shall be iron body, all bonds necessary to get permits for cuts and pieces, and shall be free from fragments coated with bronze mounted, disc gate valves conforming to connections to existing sewers. dirt. Compacted aggregate shall be graded as follows: AWWA Specification C -500. They shall open in B. Local Standards: The term "Local Standards" as used per latest revisions. SIEVE SIZE % PASSING the some direction as those used in the local waterworks system. Valve stems shall terminate herein means the standards of design and n 2 inch wrench nuts. Furnish two (2) keys. construction of the City of Indianapolis Dept. of 1 - 1 2" 100 Capital Asset Management. 1" 80 -100 2. Volvos in copper pipe shall be standard brass 3 -4" 79_90 bodnishoun ground-key stops, with T heads . C Ex sting improvements: Maintain in operating 1/2" 55-80 (2) keys. condrtron all active utilities, sewers and other 4 35 -60 drains encountered in the sewer installation. Repair 8 25 -50 to the satisfaction of the owner any damage to 1 30 12 -30 1200 F. Valve Boxes: Shall meet local standards or in the existing active improvements. 5 -10 absence of such, shall comply with the following D. Workmanship: To conform to all local state and 3. APPLICATION requirements: national codes and to be approved by all locof and 1. For iron body valves, boxes shall approved state agencies having jurisdiction and as approved A. Grading: Do any necessary grading in addition to standard buffalo -type cost iron, adjustable shaft by the manufacturer. that performed in accordance with Eorthwork Section, boxes, having a minimum shaft diameter of 5-1/4 to bring subgrades, after final compaction, to the inches. E Trenching: lay all pipe in open trenches, except required grades and sections for site improvement. when the local authority gives written permission for tunneling. Open the trench sufficiently ahead B Preparation of Subgrade: Remove spongy and 2. For brass body valves (stops) boxes shall be iron boxes, of pipe - laying to reveal any obstructions The otherwise unsuitable material and replace with approved stondord cast extension service having a minimum diameter of 2 -1/2 inches and having width of the trench shall be the inside pipe stable material No traffic will be allowed on lid n peace by o brass or bronze bolt. The held i diameter plus 24 inches for 12 inches above the prepared Subgrade prior to paving. castings shall be coated with two coats of coal -tor pipe. Sheet and brace trench as necessary to first inches pitch varnish. protect workmen and adjacent structures. All C. Compaction of Subgrade: The 6 below trenching to comply with Occupational Safety and the subgrode shall be compacted to at least 100% of Furnish two (2) keys for bolt in lids. Health Administration Standards Keep trenches the maximum dry density as determined by the free from water while construction is in progress. provisions of AASHTO T -99. Water shall be prevented G. Plastic Pipe: Shall conform to ASTM 0 -2241 -SDR 21 with Under no circumstances loy pipe or appurtenances in Conduct the discharge from trench I from standing on the compacted subgrode. nts conformin g to ASTM D- flexible clostomeric seal oiROVAL standing water. NSf SEAL F AP� SHALL BE STAMPED ON ALL O dewotering to drains or natural drainage channels. D. Utility Structures. Check for correct elevation of PLASTIC PIPE. P LAS all manhole covers, Inlets, valve boxes and similar F Special Supports: Whenever, in the opinion of structures located within areas to be paved and . the Enyrneer, the soil at or below the pipe grade is mark, or hove made any necessary adjustments in such unsuitable for supporting sewers and appurtenances structures. specified in this section, such special support, in addition to those shown or specified, shall be E Placing Concrete 3 APPLICATION: provided as the Engineer may direct, and the contract will be adjusted 1. Subgrode: Place concrete only on o moist, compocteo A. Permits and Codes: The intent of this section of the Subgrode of base free from loose material. Place no specifications is that the contractor's bid on the work G. Bockfrlling: For depth of at least 12 inches above concrete on o muddy or frozen subgrode. covered herein shall be based upon the drawings and the top of the pipe, backfill with earth or granular specifications but that the work shall comply with all material free from Jorge stones, rock fragments, 2 Forms: All forms shall be free from warp, tight applicable codes and regulations. Contractor shall foots or sod. Tamp this backfill thoroughly enough to prevent leakage and substantial enough to furnish oil necessary bonds to get permits for cuts and . .taking core not to disturb the pipe. For the remaining maintain their shape and position without springing Forms connections trench depth, bockfill with earth or granular material containing stones or rocks not larger than or settling, when concrete is placed. shall be clean and smooth immediately before concreting B. Existing Improvements: Maintain in operating Condition 4 inches Scckfill under walks, parking areas, all active utilities and sewers and other pipe system driveways and street shall be granular material 3. Placing Concrete Concrete shall be deposited so as that may be encountered only - thoroughly compacted by approved methods. 5 feet to require as little handling as practicable. When concrete is to be placed at an atmospheric C. Trenching: Loy all pipe in open trenches, except when Trenches parallel to and within of paved roadways shall also be constructed with compacted temperature of 35 degrees F, or less, paragraph local authority gives written permission for tunneling. granular materials. 702.10 of the Indiana Department of Transportation Provide separate trench for the water line at least 10 Specifications, latest revision shall be followed, feet horizontally from any sanitary sewer. In locations Note. where separate trenches for sewer and water lines are Bockfill between storm water detention barrels F Concrete Curb and Gutter impracticable, loy the water pipe on a solid shelf at may be delievered between barrels with use of a least 18 inches above the top of the sewer. conveyor (bollost) truck to minimize over running of 1 Expansion Joints: Shall be 1/2 inch thick exposed barrels. premoulded at ends of all returns and a maximum D. Width of Trench: Excavate trenches 12 inches each side spacing of 100 feet. of the pipe for proper installation of pipe. H. Manhole Inverts Construct manhole flow channels of 2. Contraction Joints: Unless otherwise provided, E. Sheeting and bracing: Sheet and brace trenches as concrete, smoothy finished and of contraction joints shall be joints spaced 10 feet necessary to protect workmen and adjacent structures. All trenching shall comply with the Occupational Safety semi - circular section conforming to the inside on center. I and Health Administration Standards. diameter of the connecting sewers Make changes in size or grade _gradually and changes in direction by . 3. Finish: Tamp and screed concrete as soon as placed, and fill any honeycombed places Finish F. Water Removal: Keep trenches free from water while true curves Provide such channels for all connecting sewers at each manhole square corners to 1/4 inch radius and other corners construction therein is in progress. Under no . to radii shown. circumstances loy pipe or appurtenances in standing water. Conduct the discharge from trench dewatering to I Subdroins: All subdroins onsite shall be of the drains, or natural drainage channels. size os shown anal shall be placed as shown on the G. Concrete Walks and Exterior Sters: plans. They shall be constructed to the grades as shown on the plans. 1. Slopes: Provide 1/4 inch per foot cross slope G. Grading trench Bottoms: The bottom quadrant of the pipe Make adjustments in slopes at walk intersections as shall be fully and uniformly supported. The full load necessary to provide proper drainage. shall rest on the barrel of the pipe. the trench may be J. Utilities: It shall be the responsibility of each excavated to a depth of 4 inches or more below final contractor to verify all existing utilities and 2. Dimensions: Walks and steps shall be one course grade with sand, crushed stone or gravel bockfill to conditions pertoining to his phase of the work. It construction and of widths and details shown on the bring it back to pipe laying grade. For a depth of at shall also, be the contractors responsibility to drawings. least 12 inches above the top of the pipe bockfill with contact the owners of the various utilities before earth or granular material free from large stones, roots work is started. The contractor shall notify in 3. Finish: Screed concrete and trowel with a steel or frozen clogs. tamp this bockfill thoroughly taking writing the owners or the engineer of any changes, trowel to a hard dense surface after surface water care not to disturb the pipe. Bockfill under walks, errors or omissions found on these plans or in the has disappeared Apply medium broom finish and parking areas driveways and streets with granular field before work is started or resumed. scribe control jet ^tc at 6 foot spacing. Provide 1/2 material only and tamp thoroughly, by op roved methods. feet expansion joints where sidewalks intersect, and at a Trenches parallel to and within 10 of paved roadways 4 Quality Control maximum spacing of 48 feet between expansion joints. shall also be constructed with compacted granular material. A. Contractor shall contact 'Hancor' before construction H. Tests: Before joints are covered, fill the piping with begins. Manufacturer's representative shall be on site for field H. Curing Concrete: Except as otherwise specified, water, opening hydrants or other outlets to expel air. Test the for leakage as required by the at beginning of construction required 9 g q cure all concrete by one of the methods described in piping Local Utility. observation. Section 501.17 of the Indiana Deportment of Transportation Inspect all for leakage and remedy any leaks. Specifications, latest revision. completion Upon completion of the water lines, flush B Manufacturer's representative shall visit site a minimum 1. Bituminous Pavement: Hot asphalt concrete pavement out the system until the water runs clear. As soon as the system has been flushed out, it shall be sterilized of 2 visits, once at start of construction and once shot) be specified in Section 403 of the Indiana in accordance with the requirements of the Local Utility. during installation of piping. Department of Transportations Specifications, latest revisions. Paving will not be permitted during unfavorable weather or when the temperature is 40 degrees F. and falling. I. If a horizontal distance of 10 feet cannot be maintained between the water line and the sanitary sewer line, the J. Compacted Aggregate Sub -base: The thickness shown sewer must be constructed of water works grade ductile on the drawings is the minimum thickness of the iron pipe with mechanical joints within 10' of either side fully compacted sub -base: Compaction shall be the water line. . ^_c ;�mplished by rolling with a smooth wheeled roller weighing 8 to 10 tons. Compact to 95% compaction J. Utilities: It shall be the responsibility of each using Standard Testing Procedures. Along curbs, contractor to verify all existing utilities and headers and wolfs and at all places not accessible conditions pertaining to his phase of the work. it shall to the roller, the aggregate material shall be also be the contractor's responsibility to contact the tamped with mechanical tampers or with approved owners of the various utilities before work is started. tampers. 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. K. New Water Line construction: Contractor to record dimension of each water stub and valves from nearest fire hydrant measured along water main. The locations of hydrants and water valves, along with any other construction changes ore to be incorporated on the original construction drawings and "Record Droring" prints shall be submitted to the Local Utility as soon after completion of construction as possible. SANITARY SEWER SYSTEMS 1, SCOPE OF WORK The work under this section includes all sonitcry sewers, manholes, cleanouts, and related items, including excavating and bockfilling necessary to complete the work shown on the drawings, starting five feet outside the building wails. The ends of sewers shall be tightly plugged or copped at the terminal points, adjacent to buildings, pending the connecting of oil such lines to the building drain as specified in the plumbing specifications and architectural drawings. 2. MATERIALS A. Sanitary Sewers 1. All gravity plastic sewer pipe and fittings shall conform to ASTM 03034, SDR -35. The minimum cell classification for P.V.C. and Truss pipe shall be 12454 -8 or 12454 -C. 2. ABS sewer pipe and fittings shall conform to ASTM D2680 or latest revision. If using truss pipe, joints shall be gasket type. 3. The flow channels for the sanitary sewer manholes shall be u- shoped with the benchwolls 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 gosketed joints. B. Manholes Precast reinforced concrete manhole sections and steps 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 shotblosting or by some other approved method. They shall be tooted with asphalt paint which shall result in a smooth coating, tough and tenacious when cold, not tacky or brittle. 3. All,costings shall be manufactured in accordance with ASTM A -48 -83 Class 35B having o 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 shall be of non - rocking design or shall have machined horizontal bearing surfaces to prevent rocking and rattling under traffic. All castings shall be fully interchangeable. 4. All weights shall .not deviate from the tolerances permitted by ASTM A48 -83 "Standard Specifications for Gray Iron Castings ". 5 Joints - manhole sections shall be jointed with sealed "0" rings. The "0" rings shall meet ASTM C -443, latest revision. Pipe to manhole connections shall be resilient connectors in accordance with ASTM C -923. 3. APPLICATION A. Permits and Codes: The intent of this section of the specifications is that the contractors bid on the work covered herein shall be based upon the drawings and specifications, but that the work shall comply with oil applicable codes and regulations os 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 deportment or utility company. C. Existing improvements : Maintain in operating condition all active utilities, sewers and other drains encountered in the sewer installation. Repair to the satisfaction of the owner any damage existing active improvements. D. Workmanship: To conform to oil local, state and national codes and to be approved by oil local and state agencies having jurisdiction. E. Trenching: Loy 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 workers 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 lay pipe or appurtenances in standing water. 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 unsuitable for supporting sewers and appurtenances specified in this section, such special support, ;n addition to those shown or specified, shall be provided as the Engineer may direct and the contract will be adjusted. G. Backfilling: For a deptn of at least 12 inches above the top of the pipe, bockfill with granular moterial free from large stones, rock fragments, roots or sod. Compact this backfill thoroughly, taking core not to disturb the pipe. For the remaining trench depth, backfill with earth or granular material contoining stones or rocks not larger than 4 inches. Bockfill under walks, parking areas, driveways and streets shall be granular material only - thoroughly compacted by approved methods. Trenches parallel to and within 5 feet of paved roadways shall be constructed the some. H. Manhole Inverts: Construct manhole flow channels of concrete sewer pipe or brick smoothly finished and of semi - circular 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 o low pressure air test, unless otherwise directed by the local sewer utility. Said test shall be conducted according to NCPI Standard Method and shall be witnessed by on inspector authorized by the local sewer utility. Infiltration under test shall not exceed 100 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 D2321 per latest revision, and no plastic pipe shd,l exceed a deflection of 5 %. Perform mandrel tests as required by sewer deportment. t -, Iv 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 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 fine. N. Utilities: It shall be the responsibility of each contractor to verify oil 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. 0. Service Laterals: Individual lot service lines shall be 6" in diameter and of material equal to that specified in 2A of this section. Service lines shall be connected to the main sewer by a wye at locations generally shown within these plans. Service lines sholl be extended and capped.at o point 5 feet beyond the right- of -woy or one pipe length for those services on the some side of the street as the main. Sewer service lines shall be marked on the curb with red point and the end of the line with a wooden 2 x 4 above the ground, pointed 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 ore to be incorporated on the original construction drawings and "Record Drawing prints submitted to the sewer utility and the engineer as soon after completion of construction as possible. EROSION CONTROL A. CONTRACTOR SHALL AT ALL TIMES INSURE THAT EROSION CONTROL MEASURES PROTECTING EXISTING DRAINAGE FACILITIES BE IN PLACE PRIOR TO THE COMMENCEMENT OF ANY PHASE OF CONSTRUCTION OR LAND ALTERATION ACTIVITY. B. AS SOON AS AREAS ARE BROUGHT TO FINISH GRADE OR NEW DRAINAGE FACILITIES ARE CONSTRUCTED, CONTRACTOR SHALL CONSTRUCT THE APPLICABLE EROSION CONTROL MEASURES REOUIRED BY AND DELINEATED ON THE APPROVED PLAN. C. DURING SITE CONSTRUCTION ACTIVITY, THE CONTRACTOR SHALL: 1. CONSTRUCT ALL PERIMETER SILT BARRIERS. 2. INSTALL AND MAINTAIN CLEAN CRUSHED STONE AT ALL CONSTRUCTION ENTRANCES /EXITS TO THE SITE AND ANY AREAS USED FOR PARKING. 3. PREVENT CONSTRUCTION SILTS FROM LEAVING THE SITE AT ALL TIMES AND PLACE EXCAVTED MATERIALS AWAY FROM ANY DIRECT DRAINAGE FLOW RUNOFF FROM THE SITE. D. TEMPORARY VEGETATION SHALL BE INSTALLED WITHIN 7 DAYS FOLLOWING COMPLETION OF ANY PHASE OF GRADING. E. CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES DAILY AND REPAIR AS NECESSARY TO PREVENT EROSION. SILTATION SHALL BE REMOVED FROM AREAS WHERE FAILURES HAVE OCCURED AND CORRECTIVE ACTION SHALL BE TAKEN WITHIN 24 HOURS TO MAINTAIN ALL EROSiUN CONTROL. F. PERIMETER SILTATION BARRIERS SHALL BE MAINTAINED AT AL TiMES. G. AT SUCH TiME THAT ROUGH GRADING OF THE SITE IS COMPLETE AND DRAINAGE DIVERTS TO INLETS, INLET EROSION CONTROL MEASURES SHALL SE INSTALLED AT ALL INLET STRUCTURES TO KEEP PIPING SYSTEMS FREE OF SILTATION. H. EROSION CONTROL MEASURES, CONSTRUCTION ENTRANCES AND SILTATION BARRIERS SHALL. REMAIN IN PLACE UNTIL A GOOD STAND OF GRASS HA$ BEEN OBTAINED AND /OR PAVING OPERATIONS ARE COMPLETE. AFTER COMPLETE VEGETATIVE ESTABLISHMENT OR PAVING, ALL SILT IN PIPES. DETENTION FACILITIES AND SWALES SHALL BE REMOVED WITHIN 10 DAYS SO THAT FINISHED GRADES ARE NET. TURF PREPARATION I. ALL DISTURBED LAWN AREAS SHALL RECEIVE PERMANENT SEEDING AS SOON AS CONSTRUCTION AND WEATHER PERMIT. 2. ALL DISTURBED LAWN AREAS TO HAVE A MINIMUM OF 6 INCHES OF TOPSOIL (COMPACTED THICKNESS). 3. TOPSOIL TO BE FERTILE, FRIABLE, SANDY LOAM REASONABLY FREE OF SUBSOIL, CLAY LUMPS, STONES LARGER THAN 1/2 ", EXCESSIVE OUANITIES OF SMALL STONE /GRAVEL, BRUSH AND OTHER LITER. 4. SOLVE ANY SURFACE OR SUBSURFACE DRAINAGE PROBLEMS AND CONSTRUCT DERMANENT EROSION CONTROL STRUCTURES. 5. PERFORM THE MAJOR FILLING, SHAPING AND SMOOTHING OF GULLIED OR ERODED AREAS. 6. HAVE TOPSOIL TESTED TO CHECK pH AND NUTRIENT LEVELS. PROVIDE FERTILIZER AND SOIL AMENDMENTS AS REOUIRED TO MEET /EXCEED MiNiMUM REQUIREMENTS AS SUGGESTED ON SOILS TEST RESULTS. 7. WORK FERTILIZER AND SOIL AMENDMENTS INTO TOP 2 -3 INCHES OF THE TOPSOIL WITH A SMALL DISK, HARROW OR RAKE OPERATED ACROSS THE SLOPE AS MUCH AS POSSIBLE. 8. ROLL THE TOPSOIL WITH A WATER BALLAST ROLLER WEIGHING 100 TO 300 L85. DEPENDING ON SOIL TYPE. ROLL WITH TOPSOIL IN A SEMI -DRY CONDITION IN TWO OPPOSITE DIRECTIONS (RIGHT ANGLES). 9. RAKE OR SCARIFY AND CUT OR FILL IRREGULARITIES THAT DEVELOP AS REOUIRED AND AGAIN ROLL UNTIL AREA IS TRUE AND UNIFORM, FREE FROM LUMPS, DEPRESSIONS AND IRREGULARITIES. 10. SOW SEED WITH ADEQUATE EOUIPMENT AT A TIME WHEN LITTLE OR NO WIND IS BLOWING. BROADCAST HALF OF SEED IN ONE DIRECTION AND THE OTHER HALF IN THE OPPOSITE DIRECTION (RIGHT ANGLES). 11. COVER SEED TO A DEPTH OF 1/2" BY RAKING OR HARROWING. i PROVIDE A LIGHT LAYER OF STRAW OR HAY MULCH AT A RATE OF 1 TO 1 1 /2 TONS PER E. APPLY TACKIFIER TO STABUZE MULCH. 12. HYDROSEEDING IS AN ACCEPTABLE METHOD OF SEEDING. 13. KEEP TOPSOIL RELATIVELY MOIST UNTIL LAWN IS ESTABLISHED. 14. RESEED AREAS THAT DO NOT SHOW PROMPT GERMINATION AT 15 DAY INTERVALS UNTIL AN ACCEPTABLE STAND OF GRASS IS ASSURED. 15. LAWN AREAS WILL BE ACCEPTED AT FINAL INSPECTION PROVIDED THAT: LAWN AREAS ARE PROPERLY ESTABLISHED. LAWN IS FREE OF BARE AND DEAD SPOTS AND WITHOUT WEEDS. LAWN AREAS HAVE BEEN MOWED AT LEAST TWICE. 16. MANTAIN LAWN AREAS UNTIL ACCEPTED BY LANDSCAPE ARCHITECT /OWNER. MAINTENANCE TO INCLUDE WATERING, WEEDING, FERTILIZING AND MOWING. 17. PROVIDE UPON REQUEST FROM THE OWNER INSTRUCTIONS TO MAINTAIN THE LAWN FOR A COMPLETE SEASON. ALSO, IF R£OUESTED, PROVIDE HANDS ON TRAINING TO THE OWNER FOR SPECIFIC MAINTENANCE CHORES, SUCH AS FERTIUZING, SPRAYING, MOWING, ETC.. 0.11111 H11111j� ,`'� 4 89029 ik P STATE OF �'r, 'W,o lie, ''rio AIM •''�tV'�' Z y �', •. ., ..••�