Environment  Environnernent
Canada Canada

Fisheries and — Péches et
Marine sciences de la mar

May 15th, 1974 RECEIVED
DEPT, OF HIGHWAYS
VICTORIA, B.C,

M AY 2 7 197. Wyte Agia retsrance
T-11-4.

Gute hare -eldrense

31-3-C5

Mr. H.A. Bowman, P.Eng.

Bridge Engineer -

Department of Highways
Parliament Buildings

Victoria, B.C.

Attention: Mr. G.S. Kirkbride,

Dear Sir:
on

RE:. .Coquitlam.River.Bridge.-.B.C. Department .of Highways.

Reference is made to your letter dated April 9, 1974 and attached
drawing No. 1273- 15 regarding the subject.

I wish to advise that the Coquitlam River is utilized by salmon
and steelhead trout for spawning and rearing purposes; therefore,
to ensure that the fisheries resource is not adversely affected, I
request that all work be subject to the following conditions:-

(1) All work within the wetted perimeter of the Coquitlam River
shall be undertaken oniy during the period May Ist to September Ist of
any year.

(2) Disturbance of natural streambanks shall be kept to an absolute
minimum and work snall be undertaken in a manner which will minimize the

amount of silt released into the stream.

(3) The natural configuration of the streambed within the normal
high water wetted perimeter of the stream, shall not be disturbed unless
it is absolutely necessary for the construction of the bridge pier and

abutments.

(4) Gravel shall not be removed from within the high water wetted
_ perimeter of the Coquitlam River without obtaining prior approval from

this office.

(5) After having served their purpose, all cofferdams or other

dive wees dave C nn Alar ree *,,
ue east rae Srreet 1099 rue Viost Ponce
ancoustee 1, B.C. Vangouver 1, (C.-6.)
£2 0RaN Pe)
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F-32000 (2/73) « SENIOR GRIDGE ENGINEER