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Project: Restore Water Capacity to Lake O'Neill
Owner: U.S. Navy
Start date: 6/10/1991
Finish date: 1/11/1994
Value: $1,657,128

Excavate via hydraulic cuttersuction dredge 250,000 Cubic Yards (CY) of clay material and fill a 60 foot deep upland valley disposal site. Project proved difficult, due to the fact that it was virtually impossible to meet water quality requirements with the return water back to the lake due to the long settlement period required of the clay dredge material as well as the high moisture content of the soil once the solids were remove from suspension. We devised a material drying plan, incorporating drying, mixing and spreading over a longer time frame, which resulted in ability to meet the water quality and disposal fill stabilization project specifications.

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