not really building related but ncie to see the lake can be useful again
Burnaby Lake dredging completed
By Wanda Chow - Burnaby NewsLeader
Published: May 05, 2011 2:00 PM
Updated: May 05, 2011 2:19 PM
The dredging of Burnaby Lake is now complete and already local rowers and canoeists have been making use of the deeper water, said the City of Burnaby’s director of engineering Lambert Chu.
The $20.5-million project was completed about a month ago, months ahead of schedule after contractor Hazco determined the rental costs of the dredging equipment made it more cost-effective to complete the job sooner than later, said Chu.
There was a loss of efficiency with starting up and shutting down the equipment after every shift of eight to 10 hours, so in the final six months, Hazco was running the dredging operation 24 hours a day, for six to seven days a week.
About 180,000 cubic metres of sediment was removed from the lake. While tests found elevated levels of metal contamination, it wasn’t bad enough to require treatment as hazardous waste, Chu said.
The sediment has been moved to a site on the west side of Kensington Avenue where it will eventually be used as fill for a future sports field. The soils will eventually lie below the base and sub-base of the fields, where users will have no contact with it.
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