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THE CORPORATION OF THE CITY OF PORT COQUITLAM C QO) i

MEMORANDUM

YUL 10 ign

TO: Mayor and Council . July Sth, 1978

FROM: Public Works ‘Committee

Report from the Public Works Committee Meeting held June 30th,
1978, -

IN ATTENDANCE: Alderman E.W. Mabbett
, Alderman U.M. Traboulay
F.E. Peters, P. Eng.
Ll. Melnechenko, P. Eng. (part-time)

ITEM I . °

Re: Watermain on Whyte Avenue

| Earlier the Committee had recommended the installation
of an 8~inch watermain on Whyte Avenué -between Shaughnessy Street
and the 24-inch main along the river. This had been refer.2d
back by Council for further study. ,
, The Assistant Engineer reported on his investigation
of future downtown requirements. He reported that fire flow
requirements could vary from 1500 gallons per minute to 3000
gallons per minute depending on the type’ of future development
and that to be on the safe side-we should install a 10-inch
main rather than an 8~inch main even though the existing conn-
ection is for an 8-inch main. The additional cost of the 10-inch
main over the 8~inch main would be only about $2.00 per foot.

Although experience has shown that an 8-inch diameter
network of watermains is usually sufficient for a downtown area,
the Committee felt that the installation of a 10-inch main on
Whyte Avenue would provide greater flexibility for future design
and installation of the remaining downtown water system. The
Committee therefore recommends that a 10-inch watermain be ;
installed on Whyte Avenue from Shaughnessy to the 24-inch main
at acost of $ 21,500.00 which is § 1,500.00 more than the
cost of the 8-inch watermain which was originally proposed.

The Committee also considered the possibility of
extending the watermain on Whyte to tie into the 6-inch main

in Leigh Square. This would complete a loop and provide bene-
fits in both directions including a greater fire flow capability
on McAllister. The additional length of watermain between Shaugh-
nessy and Leigh Square would cost approximately $ 9,900.00.

Funds for this project are available in the future
watermain reserve budget.

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