Walnut Creek, CA 2013
Partial Canal Dewatering

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Sandbags were placed on the end of the AquaDam in an attempt to stabilize the roll of the AquaDam. Walnut Creek, CA 2013
Walnut Creek, CA 2013
The AquaDam has pulled away from the sandbags. Walnut Creek, CA 2013
The downstream tube has been slightly overfilled, and is leaning downstream. A lack of tie-off points prevented effective restraint. Walnut Creek, CA 2013
The AquaDam performed a non-standard unrolling action that introduced a 90 degree twist. The remainder of the AquaDam unrolled and filled. Walnut Creek, CA 2013
The work area remains isolated. The cofferdam has dropped in height, so additional pumping is now required. Walnut Creek, CA 2013
Walnut Creek, CA 2013
Contractor has begun dewatering the work area, draining off the built-up seepage water. Walnut Creek, CA 2013
The AquaDam continues to fill. Walnut Creek, CA 2013
A shop vac was used in conjunction with the sump pump to dewater the work area. Walnut Creek, CA 2013
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