Dewatering Tidal Canal for Water Intake Repair
Fremont, CA (2002)
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This project required the use of two AquaDams®: the 16' dam placed "downstream" and this 12' high AquaDam® placed "upstream". Since this was a tidal project, the "downstream" dam would actually have more pressure on it. In a normal flowing stream, this is exactly the opposite. 
Fremont, CA
The AquaDam® is lowered into position with a boom truck rented specifically for this project. The AquaDam® actually ended up being placed several feet further to the left, but only after several of the rocks were removed. A rock-free bank is essential to create a tight seal.
Fremont, CA
Pumping began just before high tide. The idea was to have the AquaDam® fully inflated by the time the tide was low. 
Fremont, CA
Three ropes were placed around the AquaDam® to control its unrolling. They were tied off to the boom truck, run under the AquaDam®, then back up to the boom truck. Each rope was then held securely by one laborer.
Fremont, CA