Technical specification section detailing requirements for excavation, backfilling, grading, and related work for the tunnel project.
NYC-WTC_000165808–000165821Folder label: “North Access Connection, AMTRAK 10th Ave. Tunnel”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
to dry the material proper moisture content prior to compaction may be necessary. Earth excavation will not be considered as unacceptable backfill material by virtue of its moisture content only. B. Select Backfill Material: Imported material shall be provided for backfill where specified. The material shall consist of sound,, durable particles of a maximum 3" size. No more than 70% by weight shall pass a No. 40 sieve J and no more than 10% by weight shall pass a No. 200 sieve. The material shall be granular and free of organic or other deleterious material. Select. backfiU material will be subject to testing by the Engineer. PART 3 - EXECUTION I
3.01 CONTRACTOR'S RESPONSIBILITY , J A. Conform to applicable laws, codes, ordinances and regulations of City and | ’ I
municipal authorities. Including the furnishing of any required excavation | drawings and the obtaining of permits. | B. Prior to commencing work, examine the Drawings and Specifications, Inspect | t. the site, consult all available record drawings of existing work and | utilities, and note all conditions and limitations which may Influence work' required by this Section. Ji 3.02 FINISH ELEVATIONS AND LINES A. The Contractor shall be responsible for setting and establishing finish elevations and lines. B. Use existing established reference points designated by the Engineer to establish the new elevations and Jines. Carefully preserve tall established reference points, and If displaced, damaged or lost* replace then if Immediately at no additional cost to the Authority. 3.03 SHEETING, SHORING & BRACING A. Provide sheeting, shoring, bracing and other temporary protective work as I may be necessary. Comply with provisions of Section 02150. ■ H B. Where required for safety or by governing laws, and v*ien so ordered In writing by the Engineer, leave sheeting In place. .In $uch Instances remove original braces and rebrace sheeting against the structure In a manner approved by the Engineer. Cut off sheeting at elevations directed by the Engineer. • b wb b-- 3.04 EXISTING UNDERGROUND .UTILITIES lib i
A. known Utilities: J 1. Locate underground utilities and service connections prior to commencing excavation work. Determine exact utility locations by hand-excavated test pits dug at locations approved by the Engineer.
Contract 02220-3 Excavation and 1-02-21064-0-0 Backfil Ung
NYC-WTC_000165810
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NYC-WTC_000165271
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