NYC 9/11 Public Portal Document
CITY OF NEW YORK
DEPARTMENT OF ENVIRONMENTAL PROTECTION
BUREAU OF SEWERS
INTER-DEPARTOENT
MEMORANUDM
DATE: October 19, 1981
TO: MAGDI PARAG, P.E., CHIEF, ENGINEERING REVIEW SECTION
FROM: NOLAN J. LAU, P.E., CHIEF, PRIVATE DRAINAGE REVIEW SECTION
SUBJECT: PROPOSED SEWER RELOCATION IN CONJUNCTION WITH NEW SUBWAY INTERCONNECTION,
3RD AVENUE AT 60TH STREET - BOROUGH OF MANHATTAN -
In conjunction with the subject proposal, kindly advise the filing
engineer to Include the following items in his revised submission:
1. Complete hydraulic analysis verifying the adequacy of the
proposed replacement pipe to accc odate the existing upstream
flow with no adverse effects on the downstream system. Said
analysis must include plan and longitudinal profile views of
the new piping and a comparison of the hydraulic grade lines
for the existing and new piping.
2. A section view of the new subway interconnection in a NE/SW
direction.
3. A means of acco □dating the street drainage at 60th Street
and 3rd Avenue.
4. A modification to the new sewer alignment such that the pipe
does not traverse private property at the northeast corner of
3rd Avenue and 60th Street. Please note that if this re
alignment is not physically possible due to the elevations J
of the new substructure, a permanent sewer easement must be
established about the portion of pipe in private property.
NOLAN J. OAU, P.E.,
CCS Novotny
Lau
Tartaro
Suspense
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NYC-WTC_000165457
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