Williams Transco Pipeline, McComb, MS
The objective was to dewater the worksite in order to visually inspect a 32" natural gas pipeline for maintenance purposes. The proposed work site: a bank on the Bogue Chitto River. This river is famous for its summertime recreational activities.
|Proposed cofferdam layout. The river flow is going to be diverted around the worksite. Water quality was the paramount reason for choosing the new Aquadam® cofferdam system instead of older methods using earthen fill dams.||
|Step 1: Installation of 7' high by 50' long Aquadam® across scour channel with an estimated water depth of 6' or higher. The river flow was shifted to the opposite side of the river channel. The first Aquadam® (shown on right) was used as a "spacer" and provided support for the second Aquadam®, which bent around it.||
This Aquadam® was installed using three ropes because the water
exceeded 6' in depth (too deep for laborers to stand in).
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