ORT COQUITIAY

Jim Maitland
City Treasurer

Doug Riecken
Acting City Engineer

Coquitlam River Internal Drainage Works

Attached is an excerpt from a report prepared for the City by Associated
Engineering. They have identified certain drainage works which they feel
Should be completed by tha City in conjunction with the construction of the
fiood box and closure dyke by the Ministry of Environment. Essentially what
they are saying is that we should at least install the concrete works for a
pumping station as part of the floodbox construction to save costs, and thar
to guard against flooding behind the dykes when river levels are high we
should also install the pumping equipment and dredge the slough to provide
additional storage.

These works will be required as and when the Ministry proceeds with their
work. They are in a position to construct the flood box this year and will
likely do so. This would mean that we should at least install the concrete
works for the pump station and dredge the Slough at an estimated cost of
($26,000 + $58,000 + $50,000)x 1.3 = $174,200. To complete the punp station
would cost an additional $225,800 for a total cost of $400,000. The latter
work could be deferred until the closure dyke is constructed. Since we do not
yet have the righe of way for the closure dyke, it is not certain whether this
work will proceed this year or not.

In order to carry out this work we would need at least $175,000 this year to
construct the pump station base and an additional $225,000, possibly this
year, but more likely next to complete the pump station and dredging.

Could you advise as to how this work could be funded?

D.G. Riecken, P. Eng.
Acting City Engineer