Monday, December 8, 2008

Removal of Floats at Sayres Lake










In the early spring of 2008 SVSES backed by the Freshwater Fisheries Society of B.C. began the removal of all "in lake" components of the old fish rearing facility. This involved breaking down and removing 18 square floating rearing pens. The pens were 6m sq. and supported a wire mesh cube that were 6m deep. Each pen weighed approximately 500 lbs. Each pen was supported by wood and foam floats measuring 1.5m x 6m. The floats were bracketed and bolted into squares and had to be disconnected and floated separately to be removed from the lake . Every effort was made to remove the floats and cages intact to avoid having the foam scattered across the lake. Later we discovered that the salvage value of these floats was enough to pay for trucking them off the site. With the assistance of an excavator all the floats were removed from the lake and stacked in the parking area to await disposal.

The site also contained five metal barges. These barges were sealed military bridging components. They were checked and found to be free of any contaminants. Several, however, were very close to sinking. Inspection plates were carefully removed and gas powered pumps were used to empty bilges. The largest of the floats was 20m long and 2.5m wide. Constructed from steel plate up to 1/2 inch thick it weighed in excess of 36,000 lbs. The lifting capacity of the excavator on site was just sufficient to drag this barge up the bank and block it up for transport off site. The barges were eventually sold to a local marine towing company and produced sufficient income to pay for the trucking.

The final component to be removed from the lake was an extensive log boom break water. The twenty-one 13 m long fir logs were lifted from the lake and stacked in the parking area where they were allowed to dry over the summer. In early December of 2008 they were trucked down to the Silverdale Creek Estuary Wetlands. On the wetlands they will be placed in newly constructed aquatic habitat to serve as wildlife poles.

0 comments: