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THE CORPORATION OF THE
CITY OF PORT COQUITLAM

MEMORANDUM

Proj. No. 314

Igor Zahynacz, P.Eng.
City Engineer

Andrew de Boer
Project Engineer

DATE: March 19, 1992

SUBIECT: DRAINAGE PROBLEM, 1600 & 1800 BLOCK MARY HILL
ROAD

RECOMMENDATIONS

1) That a R.E.D. pak underdrain system be installed behind the sidewalk on the
1600 Block Mary Hill Road at a cost of $6,000.

2) That a perforated drain system be installed behind the sidewalk on the 1800
Block Mary Hill Road at a cost of $8,5u0, |

BACKGROUND & COMMENTS

Mr. John Prins of 1820 Mary Hill Road requested corrective action for a drainage
problem in front of his horne. Upon investigation by the Operations Department
additional drainage problems were found in front of 1612 and 1620 Mary Hill
Road. Drainage water is weeping from the east boulevard embankment and over
the sidewalk. This could be hazardous to pedestrians in the winter weather when
the water on the sidewalk freezes.

For the 1800 Block Mary Hill it is proposed to correct this problem with a 150
mim dia. perforated drain system which would be installed at the back of the
sidewalk to intercept the water and carry it to the storm system (see attached

diagram).

Cost: 75 m of 150 mm dia. perforated c/w drain rock and filter fabric,
3 lawn basins at 25 m spacing typ., boulevard restoration
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