THE CORPORATION OF THE CITY OF PORT COQUITLAM | C 0 J N C.

REPORT ;
oo AUG 14 1978

TO: Mayor and Council August llth, 1978

FROM: Public Works Committee

Report from the Public Works Committee Meeting held August
10th, 1978.

IN ATTENDANCE: Alderman L.M. Traboulay
F.E. Peters, P. Eng.

ITEM I

Re: Replacement of Watermain on Kingsway

The reconstruction of Kingsway Avenue on the south
side of the B.C. Hydro Transit Centre has run into an unfore-
seen problem with the existing 8-inch watermain in the road.
The watermain is a cast iron watermain with brittle joints
which was never properly bedded and which is too close to the
surface. Because of the soil conditions, it has been necessary
te excavate the road well below the watermain on either side
of the main. It does not appear possible to get adequate
compaction of the road base around the main without damaging
the main. In addition, because it is so close to the surface
and will now be directly under the pavement rather than cutside
of the pavement, it would be susceptible to breakage by heavy
wheel loads from the buses even if we could bnild a proper
road around it.

This particular main is critical because of its
industrial use. A breakage or shutdown in this main could
result in serious problems with the furnace at Esco.

For the above reasons it would appear that the best
solution would be to lay a new main and put it into operation
prior to completion of the road construction.

The Committee considered the question of the approp-
riate size for a new main and felt that the future potential of
the area could result in the need for a larger main than the
present 8~inch size. Some of the industries already have 8~inch
connections off the 8-inch main in order to pravide fire flow.
The Committee therefore recommends the construrtion of a 12-inch
diameter main for a length of about 1100 feet which will be
sufficient to clear the area under construction in this project.
The estimated cost is about $45,000.00 in addittional construction
costs although the City has an adequate stock of 12-inch pipe
available now which would reduce the actual cash flow. The water
capital reserve contains approximately $120,000.00 after existing
commitments have been taken care of and this onuld be one source
of the funds for the work. Alternatively, the cost could be

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