616.02 Water Pipe and Fittings
570 Include the cost of the line within manholes and special structures, the vertical pipe or fittings required for drop manholes, earth backfi ll, sheeting, shoring, and concrete cradles to be included in the contract unit price for the relevant pay item. Include the cost of all fittings and adaptors to connect service to the existing line to be included in the contract unit price for Sanitary Se wer Service Line . Include the cost of testing to be included in the contract unit price for the relevant pay item.
616.01 Description
This work consists of constructing wat erlines and service lines.
616.02 Materials
Provide materials in accordance with Section 733, “Miscellaneous Materials,” or as required by the facility owner.
A.Pipe Provide pipe as shown on the Plans with AASHTO, ASTM, ANSI or AWWA specifications numbers for quality control and installation. Provide pipe or fittings with a pressure rating of at least 200 psi [1.4 MPa]. Provide plastic pipe bearing the seal of the National Sanitation Foundation (NSF), with a Standard Dimension Ra tio (SDR) not exceeding 14 and an Outside Diameter (OD) equal to the OD of the equivalent size ductile iron pipe. Provide the following minimum thickness class for cast or ductile iron pipe: 4 in to 8 in [100 mm to 200 mm] diameter – Class 51; and 10 in [2 50 mm] and larger diameter – Class 50. Wrap cast and ductile iron pipe with a loose -fitting, slip -on polyethylene film that covers the entire pipe and fittings.
B.Joints Provide packing and jointing materials for pipe joints and fittings in accordance wit h the AWWA and the public utility.
C.Fittings Provide copper fittings for copper waterlines and cast or ductile fittings for other waterlines. Provide bronze service clamps for standard water service connections. Provide couplings with factory -installed brass bushings in accordance with ASTM B 62 and AWWA C 800 for Standard Corporation stop threads. WATER PIPE AND FITTINGS 616.04 571 616.03 EQUIPMENT — VACANT
616.04 Construction Methods
A.Supplemental Drawings Provide supplemental pipe and fitting installation drawings. Ensure the insta llation drawings include the following: Profiles with a horizontal scale no greater than 100 ft to 1 in [12 m to 10 mm] and a vertical scale no greater than 10 ft to 1 in [1.2 m to 10 mm]. Ensure both scales are clearly shown, The brand name and model num ber of materials, Installation instructions, Thrust block sizes and locations, Fitting locations, Disinfection methods, and Methods and materials for making connections to the existing lines. Identify drawings by station number and lateral positioning. Perform pipe and fitting work in accordance with the more stringent specifications or regulations from the following: The public utility, or The Oklahoma Department of Environmental Quality (ODEQ). Ensure the details, dimensions, and quantities on the installation drawings are in accordance with the Contract requirements, regardless of the Resident Engineer’s approval. After the Resident Engineer’s approval, the installation drawings become part of the Contract.
B.General Excavate the trench to at leas t 30 in [760 mm] below the surface of the natural ground or established subgrade. Provide for trench drainage during construction. Suspend pipe -laying operations during rain or when the trench cannot be kept free of water. Place a watertight plug in the open end of the main when stopping construction. Locate intersecting sewer lines, house sewer lines, and sewers within 10 ft [3 m] of the water line before excavating the water line trench. Prevent waste discharge into the trench. Immediately restore dist urbed sewers to a tight operating condition at no additional cost to the Department. Horizontally and vertically separate sanitary sewers and water mains in accordance with ODEQ Regulations. Place water mains at least 10 ft [3 m] horizontally from existin g or new sanitary sewer lines. Where water mains cross sanitary sewers (either above or below), provide a vertical clearance of at least 24 in [600 mm]. Where a water main crosses under a sewer, provide structural support for the sewer. Install sewer pi pe joints at least 10 ft [3 m] from water lines, unless otherwise approved by the
616.04 Water Pipe and Fittings
572 Resident Engineer. When impossible to meet these horizontal and vertical separation requirements, construct and pressure test the sewer line to ensure it is watertight befor e backfilling. Block bends, tees, crosses, outlet assemblies, valves, and plugs with concrete, except where the fittings have flanged, welded or harnessed joints. Place concrete blocking so the joints are accessible for repairs.
C.Excavation Excavate in accordance with Subsection 613.04.B, “Excavation.”
D.Bedding Place bedding in accordance with Subsection 613.04.C, “Bedding.”
E.Placing Pipe9 Lay pipe in accordance with Subsection 613.04.G, “Placing Pipe. ”
F.Joining Pipe Conduit Join pipe conduit in accordance with the manufacturers’ recommendations and AWWA requirements. Before joining pipe conduit, clean and dry the joint surfaces of t he pipe. Keep trenches free of water until the joints become watertight. Avoid realigning the pipe after completing the joint unless the pipe is removed and a new joint is constructed.
G.Connecting to Existing Lines Make connections to existing lines as indicated in the plans and directed by the Resident Engineer.
H.Removal of Existing Lines Abandon existing lines that are no longer used. If the Contract requires removal of existing lines, remove at no additional cost to the Department.
I.Setting Valve s Locate valves as shown on the Plans or directed by the Resident Engineer. Unless otherwise required by the Contract, set valves with the stem up and caulk the joints as required by the Contract. Clean the parts of foreign material.
J.Setting Fire Hydr ants Locate fire hydrants as shown on the Plans or directed by the Resident Engineer. Before placing a hydrant, remove foreign material from within the body. Tighten the stuffing boxes, and open and close the hydrant valve to ensure the parts are fully f unctioning. Ensure the hydrant leads are cast or ductile iron pipe. Block the back side of the hydrant opposite the pipe with concrete between the hydrant and the vertical face of the trench end to keep the hydrant from moving. Place each hydrant on a st one or concrete slab at least 4 in [100 mm] thick and 16 in [400 mm] square. Around the drain of the hydrant, place at least 7 ft³ [0.2 m³] of broken stone, gravel, or brick bats. Compact soil backfill to the elevation WATER PIPE AND FITTINGS 616.06 573 of the surrounding ground surface, at least 5 ft [1.5 m] from the hydrant, in accordance with Subsection 613.04.I, “Backfilling.”
K.Dead Ends Close dead ends with caps or plugs for spigot and bell ends. Caulk caps and plugs, and brace with a concrete block. Place a 2 in [50 mm] blowoff on pipes up to 4 in [100 mm] in diameter.
L.Backfilling Backfill in accordance with Subsection 613.04.I, “Backfilling.”
M.Field Testing Provide written notification to the Resident Engineer 24 hr before testing. Test the installed pipe for pressure and leakage in accordance with AWWA Standard C 600. Ensure the working pressure of the pipe does not exceed two -thirds of the rated pressure of the pipe. Ensure leakage does no t exceed 10 gal/in [93 L/100 mm] of pipe diameter per mile [kilometer] per 24 hr at 150 psi [1,034 kPa] testing pressure. Disinfect new, cleaned, or repaired water mains in accordance with Rules and Regulations Governing Operation of Public Water Supply Sy stems. Allow water with 50 ppm to 100 ppm of chlorine to stand 24 hr and develop a residual of at least 10 ppm. Drain the spent solution and replace with potable water before using the line. Alternatively, use methods listed in the latest AWWA Specific ations. Obtain safe bacteriological samples on two consecutive days before using new, cleaned, or repaired water mains.
N.Inspection The public utility will assign a representative to the Project to coordinate compliance with the utility specifications. The utilities representative will answer to the Resident Engineer. Direct all negotiations, decisions, instructions, interpretations, and matters influencing the work to the Resident Engineer.
616.05 Method of Measuremen T
The Resident Engineer will measu re the length of water pipe, including crosses, tees, sleeves, outlet assemblies, and plugs. Each pipe size constitutes a separate pay item, which the Resident Engineer will measure along the centerline with no deductions for the space occupied by fitting s, valves, and other materials. The Resident Engineer will measure each valve size as a separate pay item.
616.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows:
616.06 Water Pipe and Fittings
574 Pay Item: Pay U nit:
A.DUCTILE PIPE (LINED) Linear Foot [Meter]
B.POLYVINYL CHLORIDE (PVC) PIPE Linear Foot [Meter]
C.COPPER WATER SERVICE PIPE Linear Foot [Meter]
D.VALVES Each
E.CORPORATION STOPS Each
F.METER INSTALLATION Each
G.FIRE HYDRANTS Each
H.SUPPLEMENTAL DRAWINGS Lump Sum If a pay item for supplemental drawings does not exist, the Department will pay in accordance with Subsection 105.02, “Plans and Working Drawings.” Include the cost of the following t o be included in the contract unit price for the relevant pipe pay item: Installation of bends, tees, crosses, sleeves, outlet assemblies, plugs, and other fittings, Connections to existing lines, Removal of abandoned lines, Excavation, Bedding material, a nd Blocking. Include the cost of testing to be included in the contract unit price for the relevant pay item. Include the cost of the following to be included in the contract unit price for Fire Hydrants : Drainage stone, Blocking, and Fire hydrant extensions. Include the cost of the following to be included in the contract unit price for Corporation Stops : Tapping, Service clamp, and Coupling. The Department will consider the cost of the following to be included in the contract unit price for Meter Installation : Meter can, Meter setter with ground key angle stop, Crushed stone, and Fittings for a complete installation The public utility will specify the materials for corporation stops and meter installations. REMOVAL OF BUILDINGS, STRUCTURES, AND OBSTRUCTIONS 619.04 575 SECTION 619 REMOVAL OF BUILDINGS, STRUCTU RES, AND OBSTRUCTIONS
619.01 Description
This work consists of the following: Removing and disposing of specified obstructions; Salvaging designated materials; Backfilling the resulting trenches, holes, and pits; Removing abandoned items; Restoring the site to match the surrounding conditions; and Removing and recycling or disposing of production equipment for oil fields. Comply with current local, state, and federal regulations pertaining to the removal and disposal of facilities, referred to as buildings and structures.
619.02 Material — Vacant
619.03 Equipment — Vacant
619.04 Construction Methods
A.General The Contractor will be provided with the National Emissions Standards for Hazardous Air Pollutants (NESHAP) inspection report(s) to support the Contractor’s notification to ODEQ, as required. Inform the Resident Engineer of the proposed methods before removing buildings, structures, or obstructions. Raze, remove, and dispose of buildings, foundations, and other obstructions that are on the right -of-way as required by the Contract. Observe contract provision regarding the removal or disposal of utilities and structures by others. Remove portions of a system or configuration a s required by the Contract to ensure the remaining parts continue to function as intended. Remove salvageable material required by the Contract without damaging sections that are readily transportable. Store this material at locations shown on the Plans o r directed by the Resident Engineer. Destroy unusable and perishable material. Dispose of nonperishable material outside the Project limits with the written permission of the property owner. Submit copies of property owner agreements to the Resident Eng ineer. Address hazardous materials in accordance with Subsection 107.15, “Hazardous Materials,” and provide documentation to the Resident Engineer after disposal. Remove building, structures, and other obstruction to 1 ft [0.3 m] below the surrounding ground elevation, and break basement floors to provide drainage from the basement as approved by the
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 584–588 of 935.