NYC 9/11 Public Portal Document
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b) Guide lines for design of chambers is
attached to Hydraulic calculations. The
selected radius satisfies all of the
requirements. See calculations which are
stamped by a P.E.
16. a) Dowels have been provided between the
bottom slab and the walls of the 3'-6"x
3’-6" and 6'-0"x4'-0" concrete boxes.
b) All necessary Information and relevant
details and bar placements are shown on
Dwgs. S-93 and S-94.
c) A new manhole has been provided on the
Flow Redirection Chamber.
17. a) Dwgs. S-33 thru S-36 have more details
(sections a plans) than the sample given.
There are 26 sections taken to cover 180
feet long siphon which should be adequate.
The selected sectional details are based
on the following:.
. Plan
. Elevation
. Proper cross sections
Suggested sections do not add anything
more. Dwgs. were set up following the
example given on Nov. 10, 1986. This
saiiq>le has no such sections. In addition,
there are 45 sectional plans shown on S-60
thru S-65.
b) The Heir details are shown on Dwg. S-33.
18. The inverted siphon design and details has
been revised to reflect:
1) 16" D.I.P. is not carried into the
twin 6’-0"x4’-0" combination sewer.
Revised clean-out arrangement to provide
easy access for malntanence<^d the
location of the weirs.
2) The weir in U/S of the maintenance
chamber has been moved to Chamber A.
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