Around 500ft of shoreline needed to be de-watered for the construction of Triton Pier in Foster City, California.

The starting bank for the 8ft tall by 350ft long single closed end (SCE) AquaDam is to the left of this photo. The 8ft tall SCE AquaDam went straight down the bank and then was turned to run parallel with the shore the rest of its length. The right side of this AquaDam is in deep water, notice the slight lean of the unit towards the middle of the channel.

Here we can see the connection of the 8ft tall to the 3ft tall SCE AquaDam. Notice that the fill-tubes of the 3ft tall dam are up on top of the closed end of the 8ft tall dam. The fill-tubes have been pulled through the connection collar of the 8ft tall unit and should have been secured with rope to prevent movement. The fill was added to mitigate seepage at the 8ft to 3ft connection. A 3ft tall AquaDam is rated to control a maximum of 30-inches (2.5ft) of mud/water depth. The water depth at the connection here was greater than 30-inches, but the unwanted seepage was mitigated.

Here we can see the second/last turn and the closed end of the 3ft tall by 220ft long SCE AquaDam restrained at its ending bank. The AquaDam cofferdam system was over 500ft long and made a horseshoe or “U” shape configuration.

Make a straight line with any cofferdam can be difficult and thus additional length should be considered, prior to purchase.

Rock picking is always recommended, because the spaces between them and their odd shapes make them not watertight.

When using an AquaDam in tidal influenced water, it is important to use the proposed king/high tide water depth during the lifetime of the project for the maximum controllable depth.

Great job AquaDam!