NYC 9/11 Public Portal Document
ICO
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 & 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
sample 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.Z.P. is not carried into the
twin 6’-0"x4’-0" combination sewer.
Revised clean-out arrangement to provide
easy access for maintanencex^nd 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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