B.08.03 AM#4 31 41 16-page 10.pdf
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- River Baling Deck for Chena River Lakes Flood Control Project Federal contract opportunity
- Solicitation number
- W911KB20B0004
About this file
This document contains specifications for a federal construction contract to build a river baling deck for the Chena River Lakes Flood Control Project in North Pole, Alaska. The specifications cover requirements for driving steel sheet piles, including tolerances for pile installation, inspection procedures during pile driving and of interlocked joints, procedures for pulling and redriving selected piles, maintaining installation records, and disposal of cut-off sheet pile pieces. Offerors are invited to bid on the construction of the river baling deck in accordance with the attached solicitation, issued by the Department of the Army Corps of Engineers Engineering District Alaska. The solicitation number is W911KB20B0004 and bids are due by the response date specified in the solicitation.
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Text version
R0004 RIVER BALING DECK CHL020
operators and inspections shall be in accordance with AWS D1.1/D1.1M .
AM#4. . . DELETED TEXT. . . AM#4
b. Cut holes in pilings for bolts, rods, drains or utilities in a neat and workmanlike manner, as shown or as directed. Use a straight edge in cuts made by burning to avoid abrupt nicks. Bolt holes in steel piling shall be drilled or may be burned and reamed by approved methods which will not damage the surrounding metal. Holes other than bolt holes shall be reasonably smooth and the proper size for rods and other items to be inserted.
3.3.4 Inspection of Driven Piling
Perform continuous inspection during pile driving. Inspect all piles for compliance with tolerance requirements. Bring any unusual problems which may occur to the attention of the Contracting Officer. Inspect the interlocked joints of driven pilings extending above ground. Pilings found to be out of interlock shall be removed and replaced at the Contractor's expense. Use divers to inspect underwater interlocked joints of cofferdam sheet piling. Government divers may also inspect the interlocked joints. The inspection of cofferdams shall be performed after driving is completed, prior to filling each cell and connecting arc, and within 48 hours after filling each cell and arc.
3.3.5 Pulling and Redriving
Submit the proposed method of pulling sheet piling, prior to pulling any piling. Pull, as directed, selected pilings after driving to determine the condition of the underground portions of pilings. Any piling so pulled and found to be damaged, to the extent that its usefulness in the structure is impaired, shall be removed and replaced at the Contractor's expense. Pilings pulled and found to be in satisfactory condition shall be redriven when directed. Government furnished pilings pulled and not redriven shall be stored as directed.
3.3.6 Disposal of Scraps
Cutoff pieces and unused sheet piles shall AM#4... remain the property of the Government and be stockpiled near the Chena Project Office at a location designated by the Government. ...AM#4
3.4 INSTALLATION RECORDS
Maintain a pile driving record for each sheet pile driven. Indicate on the installation record: installation dates and times, type and size of hammer, rate of operation, total driving time, dimensions of driving helmet and cap used, blows required per foot for each foot of penetration, final driving resistance in blows for final 6 inches, pile locations, tip elevations, ground elevations, cut-off elevations, and any reheading or cutting of piles. Record any unusual pile driving problems during driving. Submit complete records to the Contracting Officer.
3.5 ATTACHMENT
Sheet Pile Testing and Material Certification
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SECTION 31 41 16 Page 10
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