Buckeye Lake Dam Improvements

As part of the project, the stability berm was produced using approximately 382,000 cubic yards (292,059 cubic meters) of local bank material. A cutoff wall was also installed to serve as a new seepage barrier. The cutoff wall was created using soil-mixing machinery, which included two Raito rigs and a Dewind One-Pass trencher positioned at Liebs Island and North Shore.

The machines operated two shifts daily, working six to seven days a week. Teams used mixing paddles (augers) to penetrate the ground to approximately 40 ft. (12 m) and mix grout with the soil around it. The Dewind machine had a 50-ft. (15 m) cutting boom for trenching and mixing the injected grout vertically simultaneously. Furthermore, a 2015 Diedrich D-50 Turbo truck-mounted drill rig was employed to perform vertical verification of core borings of the cutoff wall.