520—WATER AND SANITARY SEWER FACILITIES

520.01 Description

This work shall consist of furnishing and installing necessary materials for water distribution systems and sanitary systems in accordance with these specifications and in conformity to the dimensions, lines, and grades shown on the plans or as established by the Engineer. If the utility owner’ s specifications conflict with the Contract, the utility owners’ specifications shall govern in those areas.

520.02 Materials

520.03 Procedures

The Contractor shall be responsible for anticipating and locating underground utilities and obstructions in accordance with Section 105.08. When construction appears to be in close proximity to existing utilities, the Contractor shall unearth trench(es) a sufficient distance ahead of the work or shall excavate test pits to verify the exact locations and inverts of the utility to allow for changes in line or grade as may be necessary. Connections to existing lines shall be made only after the proposed line is completed and approved by the Engineer. Connections shall be made in the minimum time possible with minimum interruption of service. Work and interruptions in existing service shall be scheduled with the utility owner. The Contractor shall abandon existing water and sewer lines and appurtenances and manholes not required in the completed system as directed by the Engineer. Abandoned materials shall become the property of the Contractor, unless otherwise noted on the plans, upon satisfactory replacement with the new installation. The Contractor shall clean abandoned pipe that is not removed of debris and plug it with Class A3 concrete at open ends if the utility is less than 8 inches inside diameter. If the abandoned pipe is 8 inches inside diameter or greater, the Contractor shall clean the pipe of debris and fill it entirely with Class A3 concrete or flowable backfill conforming to Section 509. The Contractor shall remove existing manholes that are not required in the completed system to at least 2 feet below the proposed subgrade or natural ground line and fill the rest of the manhole with approved backfill in accordance with Section 302.03 (a)2.g. The Contractor shall restore disturbed property prior to final acceptance. Restoration shall include, but not be limited to, replacing shrubbery, sod, or topsoil, including lime, fertilizer, seed, and mulch; 741520.03 replacing paved or finished surfaces with similar materials; and performing other work in accordance with Section 107.08. Sidewalks and streets shall be kept open for passage. The Contractor shall provide and maintain adequate and safe passage over excavations to accommodate pedestrians or vehicles as directed by the Engineer until no longer required.

520.04 Testing

The Contractor shall test water and sewer mains, appurtenances, and materials for leakage after instal - lation. Testing shall be performed in the presence of the Engineer. The Contractor shall provide water, plugs, equipment, tools, labor, materials, and incidentals necessary to perform the testing. If any section of a main or manhole under test shows leakage in excess of that specified, the Contractor shall make necessary repairs or replacements at his own expense. Testing shall be repeated until satisfactory results are obtained. Visible leaks shall be repaired regardless of the amount of allowable leakage.

520.05 Disinfecting Water Mains

The Contractor shall disinfect new, relocated, and modified water mains and accessories prior to tie-ins in accordance with AWWA C651. If the initial disinfection fails to yield satisfactory samples after testing, disinfection shall be repeated until satisfactory samples have been obtained. The Contractor shall submit a written report to the Engineer that states the results of the tests after each group of samples is taken.

520.06 Measurement and Payment

Excavation and replacement of pavement removed for pipe trenches will not be measured for separate payment unless otherwise specified. However, minor structure excavation will be measured and paid for in accordance with Section 303.06. When excavation is required below the proposed trench bottom as directed or confirmed by the Engineer, necessitating additional bedding material, the bedding will be measured and paid for in accordance with Section 302.04. Water mains, water service lines, sanitary sewer pipe, and sanitary sewer force mains will be measured in linear feet of pipe through all valves and fittings, complete-in-place, and will be paid for at the Contract linear foot price. This price shall include excavating when not a specific pay item for the utility in question; testing; disinfecting; backfilling; compacting; dewatering; disposing of surplus and unsuitable material; sheeting and shoring; furnishing and installing bedding material; furnishing and installing pipe; connecting to existing lines or manholes; fittings less than 16 inches in diameter; reaction blocking; concrete anchor block; watertight welds; restrained joints; abandoning or removing lines, manholes, and other appurtenances; and restoring property. Furnishing and installing Class A3 concrete or flowable backfill in abandoned 8 inch or larger lines will be measured and paid for separately. Pipe of one size, except for cast iron and ductile iron pipe, shall be combined into one contract item for the respective size of water main and sanitary sewer pipe. The salvage value of abandoned materials shall accrue to the Contractor and shall be reflected in the price bid for the respective replacement facility. Encasement pipe and casing pipe and concrete will be measured in linear feet, complete-in-place, and will be paid for at the contract unit price per linear foot. This price shall include excavating, dewatering, sheeting and shoring, blocking, furnishing and installing pipe, grouting, concrete encasement, 748520.06 reinforcing steel, masonry blocks, watertight bulkheads, backfilling, compacting, disposing of surplus and unsuitable material, and restoring property. Jacked encasement pipe will be measured and paid for in accordance with Section 302.04. This price shall include furnishing and installing pipe; excavating, backfilling, disposing of surplus and unsuitable material, sheeting and shoring, blocking, bulkheads, and jacking. Concrete encasement will be measured in linear feet of encased pipe or cubic yard of concrete and will be paid for at the contract unit price per linear foot or cubic yard. This price shall include excavating, sheeting and shoring, furnishing and installing concrete, reinforcing steel, backfilling, compacting, and disposing of surplus and unsuitable material. Sanitary service lateral connections will be measured in linear feet from the center line of the sewer main to the point of connection of sanitary service lateral and will be paid for at the contract unit price per linear foot. This price shall include furnishing and installing pipe and fittings, excavating, backfilling, compacting, disposing of surplus and unsuitable material, sheeting and shoring, connecting to existing service lateral, and restoring property. Sanitary drop connections will be measured in linear feet, vertical measure, from the invert of the upper inlet pipe to the invert of the lower inlet pipe and will be paid for at the contract unit price per linear foot. This price shall include pipe and fittings, concrete, reinforcing steel, connections to sewer lines and manholes, excavating, bedding material, backfilling, compacting, disposing of surplus and unsuitable material, and restoring property. Sanitary sewer manholes, frames and covers, and watertight frames and covers will be measured and paid for in accordance with Section 302.04. Sewer cleanouts (main or lateral) will be measured in units of each and will be paid for at the contract unit price per each. This price shall include furnishing and installing fittings; riser pipe, frame, cover, and box; excavating; backfilling; compacting; disposing of surplus and unsuitable material; and restoring property. Reconstruct existing sanitary manhole will be measured in linear feet, vertical measure, from the point of the removed section to the top of masonry on which the frame and cover is placed and will be paid for at the contract unit price per linear foot. This price shall include removing, salvaging and resetting frame and cover, reconstruction of manhole, new materials, excavation, backfilling, compaction, disposal of surplus of unsuitable material and restoring property.. Fire hydrants will be measured in units of each and will be paid for at the contract unit price per each. This price shall include excavating, dewatering, backfilling, compacting, connections, concrete blocking, pipe straps, crushed stone drain, disposing of surplus and unsuitable material, restoring property, and testing. Water meters and boxes; water meter boxes and yokes; valves and boxes or manholes; and tapping sleeves, valves, and boxes or manholes will be measured in units of each, complete-in-place, and will be paid for at the contract unit price per each. This price shall include furnishing and installing utility fitting, excavating, backfilling, and restoring property. Bends, plugs or caps, reducers, and branches (tees, wyes, and crosses), only 16 inches in diameter and larger, will be measured in units of each and will be paid for at the Contract each price. This price shall include furnishing and installing pipe fittings, restrained joints, excavating, reaction blocking, testing, backfilling, sheeting and shoring, watertight welds, abandoning or removing existing lines as noted on the plans, and restoring property. 749520.06 Offsetting existing pipe will be measured in linear feet of pipe parallel to the flow line between tie-in points, complete-in-place, and will be paid for at the contract unit price per linear foot. This price shall include furnishing and installing fittings, couplings, restrained joints, excavating, testing, disinfecting, backfilling, compacting, dewatering, disposing of surplus or unsuitable material, sheeting and shoring, bedding material, installing pipe, connecting existing lines as noted on the plans, reaction blocking, watertight welds, abandoning or removing existing lines as noted on the plans, and restoring property. Leak detectors will be measured in units of each and will be paid for at the contract unit price per each. This price shall include furnishing and installing pipe, return bends, bird screens, clamps, excavating, backfilling, and restoring property. Concrete will be measured in cubic yards and paid for at the Contract cubic yard price. This price shall include furnishing and placing of concrete not included in other pay items, and installing plugs. Flowable Backfill will be measured in cubic yards and will be paid for at the Contract cubic yard price. This price shall include furnishing and placing of backfill material and furnishing and installing plugs. These prices shall include containing or pumping sewage during adjusting or connecting existing sewers and providing and maintaining adequate and safe passage over excavations to accommodate pedestrians or vehicles as directed by the Engineer. Payment will be made under: ———————————————————————————————————————Pay Item Pay Unit———————————————————————————————————————Water main (Size and type) Linear foot Water service line (Size) Linear foot Encasement pipe (Size and type) Linear foot Casing pipe and concrete (Size) Linear foot Leak detector (Standard) Each Bend (Size) Each Reducer (Size) Each Plug or cap (Size) Each Branch (Size) Each Offset existing pipe (Size) Linear foot Valve and (box or manhole) (Size and type) Each Tapping sleeve, valve, and (Box or manhole) Each Fire hydrant (Standard and type) Each Water meter and box (Size) Each Water meter box and yoke (Size) Each Jacked encasement pipe (Size and type) Linear foot Sanitary sewer pipe (Size and type) Linear foot Sanitary service lateral connection (Size) Linear foot Sanitary sewer force main (Size) Linear foot Bend-force main (Size) Each Reducer-force main (Size) Each Plug or cap-force main (Size) Each Branch-force main (Size) Each Offset existing pipe-force main (Size) Linear foot Sanitary sewer manhole (Standard) Linear foot Manhole frame and cover (Standard) Each Sanitary drop connection Linear foot 750———————————————————————————————————————Pay Item Pay Unit——————————————————————————————————————— Valve and (box or manhole) (Size and type)-force main Each Tapping sleeve, valve, and (box or manhole) (Size)-force main Each Concrete encasement (Standard) Linear foot or Cubic yard Reconstruct existing sanitary manhole Linear foot Watertight manhole frame and cover (Standard) Each Solid Sleeve (Size) Each Solid sleeve-force main (Size) Each Concrete (Class) Cubic Y ard Flowable Backfill Cubic Y ard ——————————————————————————————————————— SECTION 521—MAILBOX POST

521.01 Description

This work shall consist of replacing existing mailbox posts shown on the plans or designated as hazardous objects by the Engineer.

521.02 Materials

Post and mounting hardware shall conform to Standard RFD-1. Replacement mailboxes, if required, shall also conform to Standard RFD-1.

521.03 Procedures

The Contractor shall be responsible for damage to mailboxes and their posts through negligence on the part of the Contractor incurred during their removal, at their temporary location, and during resetting in accordance with Section 105.15. Where the Contractor has properly preserved the existing mail boxes, these may be remounted with new posts and hardware; or the property owner may elect to furnish a new mailbox in lieu of remounting the existing mailbox, in which case the installation of the new mailbox shall be at no additional cost to the Department or property owner. The placement and installation of the mailbox and post to be replaced shall be in accordance with Stan - dard RFD-1 and the Maintenance Division’ s Best Practices Manual. Mailbox post types shall be single, double, or multiple corresponding with existing installations or as directed by the Engineer.

521.04 Measurement and Payment

Mailbox posts will be measured in units of each and will be paid for at the contract unit price per each for the type specified. This price bid shall include removing the existing mailbox(s) and post(s); temporary relocation; installing existing mailbox, including new post and hardware; furnishing new mailbox, post and hardware; mounting new homeowner furnished mailbox(s) and providing new post and hardware, and disposal of existing post(s) damaged mailbox and debris.520.06