ASSOCIATED
ENGINEERING (B.C.) LTD.

4340 Canaaa Way

Burnaby, B.C.

V5G 4M5

February 20, 1989 Tel: (604) 293-1411

File: VOODP . | Telex: 04-354757
Facs: (604) 291-6163

The Corporation of the
City of Port Coquitlam

2272 McAllister Avenue

PORT COQUITLAM, B.C.

V3C 2A8

Attention: T.M.Y. Chong, P.Eng.
City Engineer

Dear Sirs:

Re: Coquitlam River Flood Control Works
Drainage Study

In response to your request, Associated Engineering is pleased to submit a
Proposal to study the effects of the proposed Coquitlam River flood
control works on the internal drainage of Reeve St. Park and vicinity.

1.0 PROJECT BACKGROUND

understanding of the project has been
nsulting work for the Fraser River Flood

The Fraser River Flood Control Program proposes to construct dykes
on both banks of the Coquitlam River thereby preventing flooding of
adjacent land.

The existing system of dykes js incomplete and has a number of low
points where the drainage can flow freely to the river. Once the
dykes are reconstructed to the 200-year flood level, the drainage
can exit to the river only through the floodbexes. When the water
levels in the river are high, either due to increased run-off in the
Coquitlam River or due to the backwater effects of the Fraser River,
gravity flow wil] not occur since the flood gates will be closed
until the water level drops.

A member of the
Associated Engineering
Group of Companies