In this video, we break down the construction and function of cofferdams, temporary watertight enclosures that allow engineers to create dry workspaces below the waterline. From steel sheet piling ...

In 2018, an $8 million steel cofferdam, or watertight enclosure, was built around the historic warship. This allows crews to pump water out, to expose the hull, and finish repairs for $15 million ...

Thirty-two feet below the Mississippi River’s surface, construction worker Mike Wasylko stood on a 12-foot-thick slab of concrete that held back water from filling the metal cofferdam he and a ...

A cellular cofferdam is a hollow, steel shell driven into the riverbed that is filled with sand and capped with concrete and is like the yellow plastic barrels on highways filled with water.

DLZ Michigan Inc. is installing a cofferdam, a temporary water barrier which will allow construction crews to access the canal to replace the gate. Port Huron City Manager James Freed said the ...