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← Document results/DEP Box 44/WORLD TRADE CENTER - RELOCATION OF RIVER WATER INTAKE LINES & PUMP STATION ELECT. POWER & COMM. LINES
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Foundation Specifications for WTC River Intake Relocation

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Construction specifications document detailing foundation requirements for the World Trade Center river water intake system relocation project.

NYC-WTC_000165112–000165243

Folder label: “WORLD TRADE CENTER - RELOCATION OF RIVER WATER INTAKE LINES & PUMP STATION ELECT. POWER & COMM. LINES

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NYC 9/11 Public Portal Document

III. EXECUTION A. GENERAL 1. The Subcontractor shall be solely responsible for the manufacture, handling, transporting and driving of the piles under the terms of this Section, and for all permits, arrangements, costs and charges incident thereto. B. EQUIPI-IENT

1. All piles shall be driven using a single acting steam or air hammer developing not less than 26,000 ft. pounds. The source of steam or air shall be sufficient to operate the hammer at its rated speed. 2. The Subcontractor's attention is drawn to the fact that all piles in the test pile program are driven by use of single acting hammers. If the Subcontractor proposes to use double acting hammers of equivalent energy,.it shall be its res­ ponsibility and at its cost to develop and demonstrate a revised pile driving criteria by first driving to a proposed minimum resistance- using the double-acting hammer and then testing their resitance by driving the same piles to the specified minimum resistance, with the specified single acting hammer. A minimum of three test drives for each pile size is required and additional test drives may be required, until criteria are developed which meet all requirements and approvals of the New York City Building Department and ■ Foundation Engineer. 3. The hammer shall be in good operating condtition at all times during driving. 4. Piles shall be driven using fixed leads and hammer carriages constructed in such a manner as to allow freedom of movement to the hammer, and such that the pile is held fix-mly in correct position and alignment as well as in axial alignment with the hammer. 5. A suitable anvil shall be used to prevent damage to the pile tops. Suitable cushioning shall be used in the cap block to prevent damage to the pile top. C. PILE' DRIVING CRITERIA 1. Piles shall be driven to sound bedrock and then to specified penetration resistance. Pile driving shall be continuous until the pile has developed its required bearing capacity.

BPC-COM!^RCIAL CENTER STEEL PILING 02310-3 CUL-DE-SAC

NYC-WTC_000165149

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NYC-WTC_000165149Source: NYC Law Department, mirrored locally

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NYC-WTC_000165064 · Box DEP Box 44

Request documentation regarding the relocation of river water intake lines and pump station utilities at the World Trade Center.

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