Discharge hoses have been inserted into the fill tube far enough so that they are also inside the black outer tube. This is a very short crossing, and does not require use of the entire rolled AquaDam®.

It is time to start the pumps. Workers stand behind the AquaDam® to prevent it from unrolling prematurely. The stream flow is always trying to move the uninflated AquaDam® downstream.   

Workers are holding back the AquaDam® as it inflates. Head pressure inside the AquaDam® must be maintained higher than the surrounding water. Stream water starts flowing down the diversion channel.