- Bridge Pier Construction
Shoshone River, Cody, WY (2002)
Page 1 of 2
The Wyoming Dept. of Transportation and the Federal Highway Administration
needed to construct a new bridge pier in the Shoshone River, 13 miles east
of the main entrance to Yellowstone National Park. Water quality was a top priority.
Two 4' x 100' AquaDams® were used to isolate the work area.
Since the amount of fall in the river is so great, the work area did not have
to be completely enclosed. Excess water merely drained off. The first AquaDam®
was bent to curve around the work area. The excavated hole had to be kept
dewatered using a pump.
This is a view of the completed bridge pier after the AquaDams® had
been removed. Another set of AquaDams® were used to dewater the other side.
The water is moving fast due to the construction of the stream bed
and the rapid drop in elevation. A great amount of time was spent
rock-picking directly in the path
of the unrolling AquaDam® to ensure that the best
possible watertight seal would be formed. AquaDams® can seal remarkedly
well even over rocky terrain.