July, 2002

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Bridge Projects
<p>Two cofferboxes in the Potomac River.</p> <hr /> <p>Note: Pile driver (red) in the background is driving a 180 foot long steel pipe pile. Each cofferbox contains 36-38 steel pipe piles. A concrete cap is poured on top and pedestals will be placed on top of the cap.</p> <hr /> <p><em>Photo Credit: MSHA</em></p>
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Description

Two cofferboxes in the Potomac River.

Note: Pile driver (red) in the background is driving a 180 foot long steel pipe pile. Each cofferbox contains 36-38 steel pipe piles. A concrete cap is poured on top and pedestals will be placed on top of the cap.

Photo Credit: MSHA