Walnut Creek, CA 2013
Partial Canal Dewatering

Click on photos to view a larger version
The head inside the AquaDam was lowered for the turn. Too much of the turn was made at once down a slope, so the upstream portion of the AquaDam experienced head loss, resulting in a slight rolling action. Walnut Creek, CA 2013
The roll was rolled back upstream, lowering the capacity to volume filled ratio, which caused a head to form once again in the upstream portion of the AquaDam. Walnut Creek, CA 2013
The AquaDam roll is held in place as head pressure builds. Walnut Creek, CA 2013
Walnut Creek, CA 2013
Entirety of larger channel flow is passing through this area between the AquaDam roll and the wall. Walnut Creek, CA 2013
From upstream. Walnut Creek, CA 2013
The AquaDam continues to fill and unroll. The work area is partially isolated, with minimal seepage from the upstream portion of the AquaDam cofferdam. Walnut Creek, CA 2013
Dry land! Walnut Creek, CA 2013
The AquaDam is stable, but it shifted perhaps 4-6" during the head-loss event. Walnut Creek, CA 2013
Project Manager: "I'd gladly pay five times what I paid for this AquaDam, because it saved me 100 times the cost" Walnut Creek, CA 2013
Pages: 1 2 3 4 5 6 7 Videos