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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

Battery pJI^ City Commercial Center Bldg. ’B' WTC River Water Intake System Relocations

d. Each welder’s certificate shall^be on file at the site and shall be made available to the Contractor upon his request. ' e. Each welder shall be assigned an identifica­ tion mark which shall be stamped on the pipe.> surface adjacent to each weld performed by him. f. No welding shall be performed on material whose temperature is below 40®F. Preheating from 2Q®P. to 40®F. will be permitted pro­ vided asbestos blankets shall be used to permit slow cooling of the weld and sur­ rounding area. Below an ambient temperature of 20®F. no welding will be permitted.

g. Fer butt welded joints, a 1/16 inch land shall be ground on the previously beveled end of pipe. Gas torch cutting of pipe shall be performed by jig mounted torch to produce the proper uniform smooth bevel. h. Wire-brushing shall be done with a powered wire bursh. i. The welding reinforcement shall not be less than 1/16 inch nor more than 1/8 inch above ths normal surface of the joined sections. j. Both up-hand and down-hand welding will be permitted. k. All welds will be visually inspected by the Contractor. In addition, certain welds will be selected by the Contractor for radio­ graphic inspection,. Any weld deemed defec­ tive, in the opinion of Contractor shall be ground out for the full depth and rewelded to the Contractor’s satisfaction, by the Subcontractor at his own expense. Removal of defective weld material by burning will not be permitted. .

Reinforced Concrete Pipe 15020-4

NYC-WTC_000165177

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NYC-WTC_000165177Source: 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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