Questions and Answers Amendment 0006

Question #

Questions

BOR Response

Plan sheet 1695-D-62558 calls Flow
An error is on the mechanical piping
Control Valve at NEWCOMB Turnout Site coversheet (Drawing 1695-D-62558). In as 8”, while Plan sheet 1695-D-62562
the Flow Control Valve Sizes table, the
calls for 8”x6” Reducers in the Yard Pipe flow control valve size for the Newcomb before and after the Bldg. this will
Turnout is listed as 8". That's incorrect,
require Reducers to return to 8” for the the flow control valve should be 6". Valve. Where should these reducers be Drawing 1695-D-62558 will be revised. placed?
Plan sheet 1695-D-62558, general note Note 1 on drawing 1695-D-62551 is #2 states “All Flanges shall be AWWA
specific to the BBN9 line pipe work, see
Class F as shown, unless otherwise
drawings 1695-D-62548 thru 1695-Dnoted.” A note appears on Plan sheet 62553. This note does not govern the
1695-D-62551 that would allow Class D steel manifold piping at any of the sites, flanges at specific “Head Class”. But
whereas, General Note 2 on drawing
this reference doesn’t appear to refer to 1695-D-62558 does. Steel manifold or govern the Steel Manifold Piping at the piping is shown on drawings 1695-Dsites other than BBN9. Is that correct? 62558 through 1695-D-62568. Will all Turnout Buildings will be CLASS F
Flanges? If not Please provide the “Head
Class” requirement for each Turnout
Bldg.
No Specification can be found that
Added additional coupling data to 35 21
references the “Split sleeve Restrained 95 Steel Manifold Piping. Corrected Flexible Cplg” shown on Plan sheet 1695- reference in Revised 33 11 12 to refer to D-62548. Please provide a Spec for
35 21 12 - Steel Manifold Piping.
these Couplings.
Spec 352214, 2.02, G, 9, d: requires
An extension stem is required on buried
Steel Extension Stems to within 6” of
gate valves as well, refer to Detail 6 on
Finished Grade. This appears to be only drawing 1695-D-62568. The applicable to buried Butterfly Valves.
requirements of Specification 35 22 14,
There is NO mention of Extension Stems 2.02, G, 9 should also apply to buried w/ GATE VALVES. Is that Correct? Will gate valves. Specification 35 22 14 will buried Gate Valves not have Extension be revised to clarify this. Stems?
Spec 352214, 2.02, G, 9, d: requires
Refer to the grading plans for existing
Steel Extension Stems to within 6” of
grade contours. At BBN9 turnout
Finished Grade. The only Finished Grade specifically, the 6050 contour is the only