1.) Bridge workers needed a cofferdam for construction on Arizona State Route 77 going over Leroux Wash, near Holbrook Arizona. An 8ft tall AquaDam cofferdam system was chosen to be used for this project.

2.) The 8ft tall AquaDams were installed in a “L” shape configuration, forcing any water that may run though the wash to go around the work area.

3.) A beam was placed on the top of the filled AquaDam to help verify its filled height.

4.) Here we can see the starting point (open end) of one of the 8ft tall AquaDams where it was laid up its starting bank. A starting bank is required for all single closed end (SCE) AquaDams. The open end and fill-tubes of a SCE AquaDam must be elevated higher than the full height of dam along its given path. An AquaDam will only reach its full height at the lowest elevation along its given path.

5.) There does not appear to be much water in the wash while this photo was taken, but these AquaDams can handle a maximum of 74-inches (~6ft) of mud/water depth.

6.) Looking North, towards the staring bank for the other leg of the “L” shaped cofferdam system.

7.) The work area that the 8ft tall AquaDam cofferdam system was protecting.

8.) AquaDams gain their structural integrity by being filled with water and so a source is required. Water controlling water! The closer the source of water to fill the AquaDam the better.

9.) Doing work during the dry season will typically be accompanied by low flows and less water. There is obviously not a lot of water flowing through Leroux Wash at the time of these photos.

10.) A photo from inside the work area. Bridges need large and deep foundations.

11.) Looking at one of the starting banks for a SCE AquaDam. This bank looks steep but has the needed height to keep the open end and fill-tubes elevated.

12.) Pumps with their suction hoses in an open water source that was used to fill the AquaDams.

13.) A photo from on top of one of the 8ft tall AquaDams. We are looking at two SCE AquaDams connected with a connection collar. The first one has a dirt starting bank and the other uses the closed end of the first as its starting bank. The black material is the fill-tubes for the second SCE AquaDam.

14.) Standing in the work area looking at one of the AquaDam which was an 8ft all by 110ft long unit.

15.) After filling a SCE AquaDam, it is best to close off and secure the fill-tubes so that the water inside the dam will not leak out.

16.) Great job AquaDam!