How does flow velocity affect the stability of an AquaDam?
Flow velocity is a significant factor during the installation of the AquaDam. As the flow is pinched off by the AquaDam, the water velocity around the end will increase, and possibly erode the stream bed or bank. Stream bed erosion causes undercutting in the path of the AquaDam, and the actual retained water depth may be greater than anticipated. Undercutting should be accounted for when selecting a particular AquaDam size. Stream bank erosion could increase the width of the stream at the installation site and require a longer AquaDam to span the stream. Since AquaDams can be deployed quite quickly, any changes in retained water depth or stream width due to erosion are minimized. Once an AquaDam is installed in flowing water, the water will begin to pool in front of it and the flow near the AquaDam will be minimal.