This job was delayed through the summer months (when construction should have occurred) and started in November. Rainfall for the previous six months totaled less than 1", but 7 days after the AquaDams® were initially installed, a thunderstorm developed, and over an inch of rain fell in 2 1/2 hours.  

Over 35 square miles of greater San Antonio drains into this lake. Even with only an inch of rain, the water level in the lake rose far faster than what the four discharge pumps could keep up with.

The AquaDams® were inundated with an extra 4' of water depth. Of course they failed due to the depth of the water, as shown in these pictures. The AquaDams® moved completely out of alignment and were free-floating on the overflowing lake. 

The water level in this picture is about 1' higher than the overflow dam. The lakes' boat dock is actually in the foreground of this picture, but it cannot be seen as it is submerged underwater. The beauty of the AquaDams® is that even though they failed due to high water, no earthen fill materials were deposited on the lake bed.

This is the overflow dam that creates the lake. Water is spilling over the top and its volume increased dramatically immediately following the rainstorm. The discharge pumps could not possibly maintain the lake level, and because of this, many of the AquaDams® washed over the dam and were severely damaged. This is what happens when you work in the water during the rainy season.