Instrumentation And Monitoring For Cofferdam System
Instrumentation And Monitoring For Cofferdam System
1 PagesPROJECT PROFILE Construction of a new lock at the 70- year-old Point Marion lock and dam located close to the West Virginia- Pennsylvania border required incorpo- ration of the existing 1,200-foot-long land wall (wall) into the 2,000-foot- long cofferdam system to allow excava- tions to 50 feet below the upper pool level. Two important design concerns associated with this construction ap- proach were: • The integrity of the 45-foot-hig
