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NYC 9/11 Public Portal Document
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Parsons, Brinkerhoff, Quade & Douglas, Inc. July 15, 1987 One Penn Plaza New York, NY 10119 ' 1 I. n : Mr. Ahmet Gursoy, Project Manager
Re: AMTRAK North Tunnel, Dual Inverted Siphon at West 33rd Street and 11th Avenue, Borough of Manhattan
Dear Mr. Gursoy:
This in reply to your submittal of plans for the referenced project with your letters dated January 8, 1987 and June 4, 1987, and to your June 30, 1987 submittal of minutes of a meeting held on June 29, 1987. Please be informed of the following comments:
1. Item No. 3 in the minutes states that "Bureau of Sewers has accepted the siphon design hydraulically". This is incorrect. The meeting was held to clarify the relationship between the 5^'yj; computation sheets^ahd the contract drawings so that our review could be concluded expeditiously. Hydraulic acceptability can : only be given by formal letter from this Department after complete i;eview of all submitted computations and related material. 2. Regarding item No. 2 of your minutes of the meeting, be advised that should your final siphon design computations be found to be deficient, such design may require revision which in turn, may involve changes in sizes and/or elevations of existing or proposed sewers or dimensions of the siphon itself.
3. On drawing No. S-32 of your contract plans you show the existing 3'-0" X 4'“9" combined sewer entering new manhole No. 3 as having a height of 4'-9". Attached herewith for your informatiomn is an '-extract copy of a contract plan dated July 27, 1939 for the New y York Central Railroad Company showing a cross section of this sewer (labeled S-S), indicating that the height is 3’-0".
NYC-WTC_000165359
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NYC-WTC_000165365
DEP Bureau of Sewers clarifies hydraulic review procedures and provides technical comments on proposed siphon design in tunnel.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.957
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165399
Internal memorandum inquiring whether the Bureau accepts the proposed siphon concept shown in the 60% submission drawings for the Westside Connection Project.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.957
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165377
Letter from DEP Bureau of Sewers regarding unreviseed drawings and as-built records for the tunnel project.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165401
Inter-office memorandum inquiring if the proposed siphon concept in the 60% submission drawings is acceptable to the Bureau of Sewers.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165403
Inter-office memorandum requesting hydraulic review of the proposed siphon in the Westside Connection Project.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.955
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.953
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165384
Internal memorandum acknowledging receipt of 90% submission drawings for the Westside Connection Project and referencing hydraulic computations.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165835
Inter-departmental memorandum confirming that a proposed 30-inch RCP sewer has adequate capacity for the tunnel project.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165301
DEP approval of final contract plans for tunnel project from W. 33rd to W. 38th Street with construction specifications.
1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗No available related records indexed in this group.
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NYC-WTC_000165289
Environmental Protection Department record related to tunnel project between W. 33rd and W. 38th Street.
Filed in the same folder
NYC-WTC_000165290
Letter enclosing a signed agreement between DEP and a contractor regarding sewer work in the vicinity of 11th Avenue.
Filed in the same folder
NYC-WTC_000165299
DEP legal correspondence regarding tunnel construction and sewer work in vicinity of 11th Avenue and W. 33rd Street.
Filed in the same folder
NYC-WTC_000165301
DEP approval of final contract plans for tunnel project from W. 33rd to W. 38th Street with construction specifications.
Filed in the same folder
Filed in the same folder