Letter provides specific design comments regarding roof slab thickness and removable slab configuration requirements.
NYC-WTC_000165790–000165793Folder label: “North Access Connection, AMTRAK 10th Ave. Tunnel”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
( f
February 21 i 1^7® S'"*® Seelye Stevenson Value & Knecht, Inc. Engineers & Planners 99 Park Avenue New York, NY 10016
RE: North Access Connection 10th Avenue Tunnel Amtrak, Borough of Manhattan
Dear Sir:
In reply to your submittal of contract drawings with a letter dated January 24, 1984 on the above referenced project, please be advised of the following specific comments of this department: •
1. Drawing Nos. C-D2 and C-UT2 show the pressure relief manhole as type A-1 manhole. This is not acceptable as momentum of the storm water in the force main is not being broken. The details should show either the force mains coming at a higher ." elevation and dropping into the pressure releif manhole or pro vide an energy dissipating baffle wall in the manhole where the water hits before going to the outlet pipe of the man hole (see enclosed sketch).
2. Make minor corrections as marked in red on drawing. Nos. C-D2, C-UTl and C-UT2.
3, The computations submitted for the slab for the chamber should be revised as under: ~ ,1 i) The slab shall be designed one way slab.
li) The loading to be used will be the greater of the two!
a) 1.5K/Sq. Ft. plus own weight. h) H-20 loading (including impact) plus own weight.
iii)The slab should be checked for shear and bond.
iv) The slab should be checked for lifting and lifting hooks design should be submitted.
v) The proposed -removable precast R.C. slab shall be set in mortar as showin in DEP standards sheet No. 18 (copy enclosed).
NYC-WTC_000165792
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000165786
Department of Environmental Protection memo reviewing structural computations for a proposed sewer chamber, providing specifications for roof slab thickness and steel values.
8 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165322
Department of Environmental Protection letter providing design review comments on tunnel project contract drawings, requesting pressure relief manhole details, existing sewer…
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.957
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.953
machine-extracted · confidence unavailable · Check page ↗2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗1 shared topics · Same agency, volume and box · similarity 0.949
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.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165840
Letter from engineers submitting revised plan sets in response to previous department comments on the tunnel project.
4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165536
March 15, 1982 DEP letter providing engineering requirements for a telephone manhole load above the proposed 13-inch sewer line.
1 shared topics · Same agency, volume and box · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗No available related records indexed in this group.
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Page similarity is temporarily unavailable or this page has no indexed vector.
Machine-extracted building matches; verify each source. Buildings, never households.
Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
Filed in the same folder
Filed in the same folder
Filed in the same folder
Filed in the same folder
Filed in the same folder