General notes for drainage work specifications, 10th Ave Tunnel

NYC 9/11 Public Portal Document

The following ^^eral notes regarding proposed drainage work should

appear on the contract plans.

1) All proposed drainage work should be done in conformance with the latest standards of the Department of Environmental Protection. 3-) All existing sewer house connections should be continuously maintained during construction. If any house connection must be disconnected for construction purposes, flow must be maintained by fluming or other suitable means as directed by the engineer and in such a manner that no back-ups occur. Any and all existing sewers, house connections or other sewer appurtenances which are to remain, and which must be disturbed for construction purposes, shall be restored to their present condition after completion of the work, and any damage done as a result of the work shall be repaired at no cost to this department.

3) All existing sewer manholes to be retained within the contract limits should be adjusted as necessary, so that they will be flush with the finished grades after completion of the work. Any of these manholes which have damaged, worn or non-standard frames and covers should be provided with new 27" castings in accordance xizith the latest standards of New York City's Depart­ ment of Environmental Protection, including any necessary. modifications of the manhole masonry. Any damage to the man­ hole caused, by this work shall be repaired or replaced by the contractor as directed by the engineer, and at no cost to the City.

NYC-WTC_000165853