Contractors worked Monday to install a temporary cofferdam around the derelict barge Davy Crockett, which lies beached and broken on the north bank of the Columbia River between Vancouver and Camas.

Pingtan finished installation of its first steelboxed cofferdam for the highway-railway bridge of the Fuzhou-Pingtan high-speed rail on Nov 8. The cofferdam is 32.52 meters long, 16.12 meters wide and ...

LBOs cofferdam concept for riser repair is tailor made for each project. Repair works can be executed while the riser is in operation, maintaining production and therefore saving cost. LBO skills and ...