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SECTION SEWERAGE AND DRAINAGE PART 1 - GENERAL 1.01 RELATED DOCUMENTS - PDF
SECTION SEWERAGE AND DRAINAGE PART 1 - GENERAL 1.01 RELATED DOCUMENTS
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Wilfred Perry
1 SECTION SEWERAGE AND DRAINAGE PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including the General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section SUMMARY A. This Section includes sewerage and drainage systems outside the building. Systems include the following: 1. Sanitary sewerage. 2. Storm drainage. B. Related Sections: The following Sections contain requirements that relate to this Section. 1. Division 2 Section "Foundation Drainage Systems" for foundation drain connecting to storm drainage system. 2. Division 3 Section "Cast-in-Place Concrete" for cast-in-place concrete structures. 3. Division 15 Section "Plumbing Piping" for building drains. 4. Division 15 Section "Drainage and Vent Systems" for building drains. 5. Division 15 Section "Laboratory Systems" for building chemical-waste and containment-conduit piping DEFINITIONS A. Combined Sewerage and Drainage Piping: System of sewer pipes, fittings, and appurtenances for gravity flow of sanitary sewage and storm drainage. B. Drainage Piping: System of sewer pipe, fittings, and appurtenances for gravity flow of storm drainage.
2 C. Force-Main Piping: System of pipe, fittings, and appurtenances for pumped flow of sanitary sewage or storm drainage. D. Sewerage Piping: System of sewer pipe, fittings, and appurtenances for gravity flow of sanitary sewage PERFORMANCE REQUIREMENTS A. Gravity-Flow, Nonpressure-Piping Pressure Ratings: At least equal to system test pressure SUBMITTALS A. General: Submit each item in this Article according to the Conditions of the Contract and Division 1 Specification Sections. B. Product data for the following: 1. Polymer-concrete, channel drainage systems. 2. Plastic, channel drainage systems. 3. Stainless-steel, trench drainage systems. 4. Backwater valves, cleanouts, and drains. 5. Drywells. C. Shop drawings for precast concrete manholes and other structures. Include frames, covers, and grates. D. Shop drawings for cast-in-place concrete or field-erected masonry manholes and other structures. Include frames, covers, and grates. E. Reports and calculations for design mixes for each class of cast-in-place concrete. F. Coordination drawings showing manholes and other structures, pipe sizes, locations, and elevations. Include details of underground structures and connections. Show other piping in same trench and clearances from sewerage system piping. Indicate interface and spatial relationship between piping and proximate structures. G. Inspection and test reports specified in the "Field Quality Control" Article.
3 1.06 QUALITY ASSURANCE A. Environmental Agency Compliance: Comply with regulations pertaining to sanitary sewerage and storm drainage systems. B. Utility Compliance: Comply with regulations pertaining to sanitary sewerage and storm drainage systems. Include standards of water and other utilities where appropriate. C. Product Options: Drawings indicate sizes, profiles, connections, and dimensional requirements of system components and are based on specific manufacturer types indicated. Other manufacturers' products with equal performance characteristics may be considered. Refer to Division 1 Section "Product Substitutions." 1.07 DELIVERY, STORAGE, AND HANDLING A. Do not store plastic structures in direct sunlight. B. Do not store plastic pipe or fittings in direct sunlight. C. Protect pipe, pipe fittings, and seals from dirt and damage. D. Handle precast concrete manholes and other structures according to manufacturer's rigging instructions PROJECT CONDITIONS A. Site Information: Verify existing utility locations. B. Locate existing structures and piping to be closed and abandoned. C. Existing Utilities: Do not interrupt existing utilities serving facilities occupied by the Owner or others except when permitted under the following conditions and then only after arranging to provide acceptable temporary utility services. 1. Notify Architect not less than 48 hours in advance of proposed utility interruptions. 2. Do not proceed with utility interruptions without receiving Architect's written permission.
4 1.09 SEQUENCING AND SCHEDULING A. Coordinate sanitary sewerage system connections to utility company's sanitary sewer. B. Coordinate with interior building drainage systems. C. Coordinate with other utility work. PART 2 - PRODUCTS 2.01MANUFACTURERS A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated in the Work include, but are not limited to, the following: B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Channel Drainage Systems: a. ABT, Inc. b. ACO Plymer Products, Inc. c. Blucher-Josam Div., Josam Co. 2. Backwater Valves, Cleanouts, and Drains: 3. Drywells: a. Ancon, Inc. b. Jones Manufacturing Co., Inc. c. Josam Co. d. Rockford Sanitary Systems, Inc. e. Jay R. Smith Mfg. Co. Div., Smith Industries, Inc. f. Wade Div., Tyler Corp. g. Zurn Industries, Inc., Hydromechanics Div. a. McGookin Drilling
5 2.02 PIPES AND FITTINGS A. Corrugated, Polyethylene (PE) Drainage Tubing: AASHTO M 252 Interim, Type S, with smooth waterway for gasketed joints. 1. Fittings: ASTM D 3034, polyvinyl chloride (PVC) with socket ends, for gasketed joints. 2. Gaskets: ASTM F 477, elastomeric seals, that mates with tube and fittings to form watertight joints. B. Corrugated, Polyethylene (PE) Plastic Pipe: AASHTO M 294 Interim, Type S, with smooth waterway for gasketed joints. 1. Fittings 12 and 15 Inches (300 and 375 mm): ASTM D 3034, polyvinyl chloride (PVC) with socket ends, for gasketed joints. 2. Fittings 18 to 24 Inches (450 to 600 mm): ASTM F 1336, polyvinyl chloride (PVC) with socket ends, for gasketed joints. 3. Gaskets: ASTM F 477, elastomeric seals, that mates with pipe and fittings to form watertight joints. C. Corrugated, Polyethylene (PE) Plastic Pipe and Fittings: AASHTO M 294 Interim, Type S, with smooth waterway for coupling joints. 1. Couplings: Polyethylene (PE) sleeve with ASTM F 477, elastomeric seals, that mates with pipe and fittings to form watertight joints. D. Polyvinyl Chloride (PVC) Sewer Pipe and Fittings: ASTM D 3034, SDR 35, for gasketed joints. 1. Primer: ASTM F Solvent Cement: ASTM D Gaskets: ASTM F 477, elastomeric seal SPECIAL PIPE COUPLINGS AND FITTINGS A. Sleeve-Type Pipe Couplings: Rubber or elastomeric sleeve and band assembly fabricated to match outside diameters of pipes to be joined, for nonpressure joints. 1. Sleeves for Dissimilar Pipes: Compatible with pipe materials being joined. 2. Bands: Stainless steel, at least one at each pipe insert.
6 B. Gasket-Type Pipe Couplings: Rubber or elastomeric compression gasket, made to match outside diameter of smaller pipe and inside diameter or hub of adjoining larger pipe, for nonpressure joints. 1. Gaskets for Plastic Pipe: ASTM F 477, elastomeric seal. 2. Gaskets for Dissimilar Pipes: Compatible with pipe materials being joined MANHOLES A. Precast Concrete Manholes: Precast, reinforced concrete, of depth indicated, with provision for rubber gasket joints. Refer to MAG specifications 625.1,2,3. B. Cast-in-Place Concrete Manholes: Construct of reinforced-concrete bottom, walls, and top, according MAG specifications 625.1,2,3. Include depth, shape, dimensions, and appurtenances indicated. 1. Ballast: Increase thickness of concrete, as required to prevent floatation. C. Manhole Frames and Covers: 1. Sanitary Sewerage Piping Systems: SANITARY SEWER. 2. Storm Drainage Piping Systems: STORM SEWER. 3. Piping Systems Containing Sanitary Sewage: SANITARY SEWER CATCH BASINS A. Precast Concrete Catch Basins: Mag details and specifications precast, reinforced concrete, of depth indicated, with provision for rubber gasket joints. B. Cast-in-Place Concrete Catch Basins: MAG details and specifications STORM-WATER INLETS A. Combination Inlets: Made with vertical curb and horizontal gutter openings, of materials and dimensions according to MAG standards. Include heavy-duty frames and grates. B. Frames and Grates: Heavy-duty frames and grates according to MAG standards.
7 2.07 CONCRETE A. General: Cast-in-place concrete according to ACI 318, ACI 350R, and the following: 1. Cement: ASTM C 150, Type II. 2. Fine Aggregate: ASTM C 33, sand. 3. Coarse Aggregate: ASTM C 33, crushed gravel. 4. Water: Potable. 5. MAG specifications and details 2.08 CLEANOUTS A. Description: ASME A M, round, cast-iron housing with clamping device and round, secured, scoriated, cast-iron cover. Include cast-iron ferrule with inside calk or spigot connection and countersunk, tapered-thread, brass closure plug. Use units with toploading classifications according to the following applications: 2.09 TRENCH DRAINS 1. Light Duty: In earth or grass, foot-traffic areas. 2. Medium Duty: In paved, foot-traffic areas. 3. Heavy Duty: In vehicle-traffic service areas. 4. Extra Heavy Duty: In roads. A. Galvanized Steel Drainage Systems: Provide modular trench drain system with interlocking channels, adjustable frames and gratings. 1. Channel Sections: Interlocking-joint, min 18 GA Galvanized modular units with end caps. Include 4 inside width and 10 deep rounded bottom, with built-in invert slope of 0.6 percent and outlets in number, sizes and locations indicated. Include extension sections necessary for required depth. 2. Grates: Manufacturer s designation medium duty galvanized or cast iron with locking mechanism for securing grates to channel sections; designed so that grates fit into frames without rocking or rattling. Provide 1/4 diameter openings.
8 2.10 OUTFALLS A. Construct headwall, apron, and tapered sides of cast-in-place, reinforced concrete. B. Riprap: Broken stone, irregular size and shape, weighing 15 to 50 pounds (7 to 23 kg) each DRYWELLS A. Description: Maxwell IV PART 3 - EXECUTION 3.01EARTHWORK A. Excavating, trenching, and backfilling are specified in Division 2 Section "Earthwork." 3.02 IDENTIFICATION A. Materials and their installation are specified in Division 2 Section "Earthwork." Arrange for installation of green warning tapes directly over piping and at outside edges of underground structures. 1. Use warning tapes or detectable warning tape over ferrous piping. 2. Use detectable warning tape over nonferrous piping and over edges of underground structures SEWERAGE PIPING APPLICATIONS A. General: Include watertight joints. B. Refer to Part 2 of this Section for detailed specifications for pipe and fitting products listed below. Use pipe, fittings, and joining methods according to the following applications. C. Pipe Sizes 4 and 6 Inches (100 and 150 mm): ASTM D 3034, polyvinyl chloride (PVC) sewer pipe and fittings; or with gaskets and gasketed joints.
9 D. Pipe Sizes 8 and 10 Inches (200 and 250 mm): ASTM D 3034, polyvinyl chloride (PVC) sewer pipe and fittings; or with gaskets and gasketed joints. E. Pipe Sizes 12 and 15 Inches (300 and 375 mm): ASTM D 3034, polyvinyl chloride (PVC) sewer pipe and fittings with gaskets and gasketed joints DRAINAGE PIPING APPLICATIONS A. General: Include watertight, silttight, or soiltight joints, except where watertight or silttight joints are indicated. B. Refer to Part 2 of this Section for detailed specifications for pipe and fitting products listed below. Use pipe, fittings, and joining methods according to the following applications. C. Pipe Sizes 4 and 6 Inches (100 and 150 mm): AASHTO M 252 Interim, corrugated, polyethylene (PE) drainage tubing and fittings; polyethylene (PE) sleeve, silttight couplings; and silttight, coupled joints. D. Pipe Sizes 8 to 15 Inches (200 to 375 mm): AASHTO M 252 Interim, corrugated, polyethylene (PE) drainage tubing and fittings; polyethylene (PE) sleeve, silttight couplings; and silttight, coupled joints in sizes 8 and 10 inches (200 and 250 mm). AASHTO M 294 Interim, corrugated, polyethylene (PE) plastic pipe and fittings; polyethylene (PE) sleeve, silttight couplings; and silttight, coupled joints in sizes 12 and 15 inches (300 and 375 mm). E. Pipe Sizes 8 to 15 Inches (200 to 375 mm): ASTM D 3034, polyvinyl chloride (PVC) sewer pipe and fittings; with gaskets and gasketed joints. F. Pipe Sizes 18 to 36 Inches (450 to 900 mm): Ductile-iron pipe; standardpattern, cast-iron or ductile-iron fittings; gaskets; and gasketed joints. G. Pipe Sizes 18 to 36 Inches (450 to 900 mm): AASHTO M 304M, polyvinyl chloride (PVC), ribbed drain pipe; AASHTO M 304M or ASTM F 794, PVC ribbed fittings; elastomeric seals; and soiltight, gasketed joints. H. Pipe Sizes 18 to 36 Inches (450 to 900 mm): Reinforced-concrete sewer pipe and fittings; rubber gaskets; and gasketed joints.
10 3.05 SPECIAL PIPE COUPLING AND FITTING APPLICATIONS A. Special Pipe Couplings: Use where indicated and where required to join piping and no other appropriate method is specified. Do not use instead of specified joining methods. 1. Use the following pipe couplings for nonpressure applications: a. Strait-pattern, sleeve type to join piping, of same size, with small difference in outside diameters. b. Increaser/reducer-pattern, sleeve type to join piping of different sizes. c. Gasket type to join piping of different sizes where annular space between smaller piping's outside diameter and larger piping's inside diameter permits installation. d. Internal-expansion type to join piping with same inside diameter. 2. Use pressure-type pipe couplings for force-main, pressure application joints. Include polyethylene (PE) encasement. B. Special Pipe Fittings: Use where indicated. Include polyethylene (PE) encasement INSTALLATION, GENERAL A. General Locations and Arrangements: Drawings (plans and details) indicate the general location and arrangement of underground sewerage and drainage systems piping. Location and arrangement of piping layout take into account many design considerations. Install piping as indicated, to extent practical. B. Install piping beginning at low point of systems, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install gaskets, seals, sleeves, and couplings according to manufacturer's recommendations for use of lubricants, cements, and other installation requirements. Maintain swab or drag in line and pull past each joint as it is completed. C. Use manholes for changes in direction, except where fittings are indicated. Use fittings for branch connections, except where direct tap into existing sewer is indicated. D. Use proper size increasers, reducers, and couplings, where different sizes or materials of pipes and fittings are connected. Reduction of the size of piping in the direction of flow is prohibited. E. Install gravity-flow-systems piping at constant slope between points and
11 elevations indicated. Install straight piping runs at constant slope, not less than that specified, where slope is not indicated. F. Extend sewerage piping and connect to building's sanitary drains, of sizes and in locations indicated. Terminate piping as indicated. G. Install sewerage piping pitched down in direction of flow, at minimum slope of 2 percent (1:50) and 36-inch (1000-mm) minimum cover, except where otherwise indicated. H. Extend drainage piping and connect to building's storm drains, of sizes and in locations indicated. Terminate piping as indicated. I. Tunneling: Install pipe under streets or other obstructions, that cannot be disturbed, by tunneling, jacking, or a combination of both PIPE JOINT CONSTRUCTION AND INSTALLATION A. General: Join and install pipe and fittings according to the following. B. Polyethylene (PE) Plastic Pipe and Fittings: As follows: 1. Join pipe, tubing, and fittings with couplings for soiltight joints according to AASHTO "Standard Specifications for Highway Bridges," Division II, Section "Joint Properties" and manufacturer's written instructions. 2. Join pipe, tubing, and gasketed fittings with elastomeric seals for watertight joints according to ASTM D 2321 and manufacturer's written instructions. 3. Install according to ASTM D 2321 and manufacturer's written instructions. C. Polyvinyl Chloride (PVC) Plastic Pipe and Fittings: As follows: 1. Join pipe and gasketed fittings with elastomeric seals according to ASTM D Join profile sewer pipe and ribbed drain pipe and gasketed fittings with elastomeric seals according to ASTM D 2321 and manufacturer's written instruction. 3. Install according to ASTM D 2321.
12 D) Concrete Pipe and Fittings: 1. Round Pipe and Fittings: ASTM C 443 (ASTM C 443M), rubber gaskets. E. System Piping Joints: Make joints using system manufacturer's couplings, except where otherwise specified. F. Join piping made of different materials or dimensions with couplings made for this application. Use couplings that are compatible with and fit both systems' materials and dimensions MANHOLE INSTALLATION A. General: Install manholes, complete with accessories, as indicated. B. Form continuous concrete channels and benches between inlets and outlet, where indicated. C. Set tops of frames and covers flush with finished surface where manholes occur in pavements. Set tops 3 inches (76 mm) above finished surface elsewhere, except where otherwise indicated. D. Place precast concrete manhole sections as indicated, and install according to ASTM C Provide rubber joint gasket complying with ASTM C 443 (ASTM C 443M), at joints of sections. 2. Apply bituminous mastic coating at joints of sections. E. Construct cast-in-place manholes as indicated CATCH BASIN INSTALLATION A. Construct catch basins to sizes and shapes indicated. B. Set frames and grates to elevations indicated STORM DRAINAGE INLET AND OUTFALL INSTALLATION A. Construct inlet head walls, aprons, and sides of reinforced concrete, as indicated.
13 B. Construct outlet head walls, aprons, and sides of reinforced concrete, as indicated. C. Construct riprap of broken stone, as indicated. D. Install outlets that spill onto grade, anchored with concrete, where indicated. E. Install outlets that spill onto grade, with flared end sections that match pipe, where indicated CONCRETE PLACEMENT A. Place cast-in-place concrete according to ACI 318, ACI 350R, and as indicated DRYWELL INSTALLATION A. Assemble and install components according to manufacturers written instructions and as indicated. Do not extend excavation into ground water table DRAINAGE SYSTEM INSTALLATION A. Assemble and install components according to manufacturer's written instructions and as indicated CLEANOUT INSTALLATION A. Install cleanouts and riser extension from sewer pipe to cleanout at grade. Use cast-iron soil pipe fittings in sewer pipes at branches for cleanouts and cast-iron soil pipe for riser extensions to cleanouts. Install piping so cleanouts open in direction of flow in sewer pipe. B. Set cleanout frames and covers in earth in a cast-in-place concrete block, 18 by 18 by 8 inches (450 by 450 by 300 mm) deep. Set with tops 1 inch (25 mm) above surrounding earth grade. C. Set cleanout frames and covers in concrete paving with tops flush with surface of paving TAP CONNECTIONS A. Make connections to existing piping and underground structures so finished work conforms as nearly as practical to requirements specified for new work.
14 B. Protect existing piping and structures to prevent concrete or debris from entering while making tap connections. Remove debris or other extraneous material that may accumulate CLOSING ABANDONED SEWERAGE AND DRAINAGE SYSTEMS A. Abandoned Piping: Close open ends of abandoned underground piping that is indicated to remain in place. Include closures strong enough to withstand hydrostatic and earth pressures that may result after ends of abandoned piping have been closed. Use either of the following procedures: 1. Close open ends of piping with at least 8-inch- (200-mm-) thick brick masonry bulkheads. 2. Close open ends of piping with threaded metal caps, plastic plugs, or other acceptable methods suitable for size and type of material being closed. Do not use wood plugs. B. Abandoned Structures: Excavate around structure as required and use either of the following procedures: 1. Remove structure and close open ends of remaining piping. 2. Remove top of structure down to at least 36 inches (1000 mm) below final grade. Fill to within 12 inches (300 mm) of top with stone, rubble, gravel, or compacted dirt. Fill to top with concrete. 3. Backfill to grade according to Division 2 Section "Earthwork." 3.17 FIELD QUALITY CONTROL A. Clear interior of piping and structures of dirt and superfluous material as the work progresses. Maintain swab or drag in piping and pull past each joint as it is completed. 1. In large, accessible piping, brushes and brooms may be used for cleaning. 2. Place plug in end of incomplete piping at end of day and whenever work stops. 3. Flush piping between manholes and other structures, if required by authorities having jurisdiction, to remove collected debris. B. Inspect interior of piping to determine whether line displacement or other damage has occurred. Inspect after approximately 24 inches (600 mm) of backfill is in place, and again at completion of the Project.
15 1. Submit separate reports for each system inspection. 2. Defects requiring correction include the following: a. Alignment: Less than full diameter of inside of pipe is visual between structures. b. Deflection: Flexible piping with deflection that prevents passage of a ball or cylinder of a size not less than 92.5 percent of piping diameter. c. Crushed, broken, cracked, or otherwise damaged piping. d. Infiltration: Water leakage into piping. e. Exfiltration: Water leakage from or around piping. 3. Replace defective piping using new materials and repeat inspections until defects are within allowances specified. 4. Reinspect and repeat procedure until results are satisfactory. 5. As built location vertical and horizontal. C. Test new piping systems and parts of existing systems that have been altered, extended, or repaired for leaks and defects. 1. Do not enclose, cover, or put into service before inspection and approval. 2. Test completed piping systems according to authorities having jurisdiction. 3. Schedule tests, and their inspections by authorities having jurisdiction, with at least 24 hours' advance notice. 4. Submit separate reports for each test. 5. Where authorities having jurisdiction do not have published procedures, perform tests as follows: a. Sanitary Sewerage: Perform hydrostatic test. 1) Allowable leakage is a maximum of 50 gallons per inch (4.6 L per mm dimension) nominal pipe size, for every mile (km) of pipe, during a 24-hour period 2) Close openings in system and fill with water. 3) Purge air and refill with water. 4) Disconnect water supply. 5) Test and inspect joints for leaks. 6) Option: Test ductile-iron piping according to AWWA C600, Section 4 "Hydrostatic Testing." Use test pressure of at least 10 psig (69.0 kpa).
16 b. Sanitary Sewerage: Perform air test according to UNI-B-6. c. Storm Drainage: Perform hydrostatic test. 1) Allowable leakage is a maximum of 200 gallons per inch (18.4 L per mm dimension) nominal pipe size, for every mile (km) of pipe, during a 24-hour period. 2) Close openings in system and fill with water. 3) Purge air and refill with water. 4) Disconnect water supply. 5) Test and inspect joints for leaks. 6) Option: Test ductile-iron piping according to AWWA C600, Section 4 "Hydrostatic Testing." Use test pressure of at least 5 psig (34.5 kpa). 7) Option: Test concrete piping according to ASTM C 969 (ASTM C 969M). 8) Option: Test concrete arch piping and elliptical piping according to authorities having jurisdiction. d. Storm Drainage: Perform hydrostatic test. Close openings in system and fill with water to not less than 10-foot (3-m) head of water. Disconnect water supply. Water level must not drop for 15 minutes. Inspect joints for leaks. e. Storm Drainage: Perform air test according to UNI-B-6. 1) Option: Test round concrete piping, 24 inches (600 mm) and smaller, according to ASTM C 924 (ASTM C 924M). 6. Manholes: Perform hydraulic test according to ASTM C 969 (ASTM C 969M). 7. Leaks and loss in test pressure constitute defects that must be repaired. 8. Replace leaking piping using new materials and repeat testing until leakage is within allowances specified. **END OF SECTION**
volume of concrete occupied by the drain pipe in a cast-in-place structure or structure extension.
715.01 430 volume of concrete occupied by the drain pipe in a cast-in-place structure or structure extension. No additional payment will be made for the repair or replacement of existing concrete damaged