Internal memo with redacted text, July 1986

NYC 9/11 Public Portal Document

Parsons f fyhe Penn Plaza Brlneksrho^ New York, NY 10119 100 routs OuaOsA 212-613-5000 Douglas, Ine. Engineers Planners Cable: Parklap, New York July 9, 1986 Telex: RCA 232 117 PKLP UR

Mr. Magdi Parag, P.E. Chief, Division of Sewer Regulation and Control 40 Worth Street Room 922 New York, NY 10013

Re: Amtrak Tunnel Extension

Dear Mr. Farag:

Amtrak has proposed to extend their existing single track from the vicinity of 33rd Street to the vicinity of 38th Street by a combination of a tunnel, open cut and at grade construction. The preliminary concepts for this re­ location were prepared by others, and we are now preparing the contract doctunents for this extension.

The proposed plan of the extension, shown on Fig. 1, will require relocation of the combined sewers located in 33rd and 34th Streets along llth Avenue. The tunnel grade at this location is about 13 ft. below the inverts of the existing sewers. Previous studies of this relocation by others, have indicated the use of a siphon to accomplish the relocation at both 33rd and 34th Streets.

We would appreciate reviewing with you existing sewer information, the project configuarations, the: requirements for combined sewer relocations, the require­ ments for use of a siphon and the submittals and reports needed for approval of any proposed relocation. To implement this process, we suggest a brief meeting to provide an opportunity to exchange information and to set the stage for future formal submittals. To set this meeting please call me as soon as possible at (212) 613-5155 or Mr. Erez Sela at (212) 613-5159.

We appreciate your cooperation in this most interesting and challenging project.

Very truly yours.

PARSONS ^INCKERHOK IE & DOUGLAS, INC.

Ge^ge r/ Olige/, *P.^ ^sist^t Vice Presipen -^RECEIVeO D.E.P./BUREAU OF SE’* rm i JUL 1 U »* i} DIVISION’ SEWFR R‘ a;

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