$5 Million Project To Dredge Lake Elkhorn Is Expected To Get Under Way In Late August

April 26, 2009|By Larry Carson

The long-planned dredging of Lake Elkhorn, Columbia's largest of three man-made lakes, is expected to begin in late August.

Diana Kelley, contract administrator for the Columbia Association, said timing of the work will allow the association's summer Nature Camp to be held at the pavilion near the Lake Elkhorn dam.

The $5 million project, discussed and planned over the past five years, is to be followed next year by the $6 million dredging at Lake Kittamaqundi, in Town Center, and in late 2010 by a smaller $1.6 million sediment removal project at Wilde Lake, the town's smallest.

Kelley said the permits for Elkhorn are expected to be approved within weeks and the job put out for bids in about a month. The months-long project is expected to remove about 65,000 cubic yards of silt and sediment.

A similar amount will be taken from Kittamaqundi in early to mid-2010, Kelley said, though some of that material will be used to build a forebay, a device that will trap sediment upstream to keep the lake bottom from filling again as quickly.

Wilde Lake was last dredged in 1992, Kelley said, and about 24,000 cubic yards is expected to be removed from that lake's bottom by a vacuum machine. Genesis Fluid Solutions of Colorado Springs, Colo., was selected for that job by the Columbia Association.

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