IDC performs multiple cofferdam projects every year. Cofferdam preparation has become an IDC specialty:

• IDC assists our customers in inspection and cleaning of coffer dam walls and auger piles for grout adhering
• Dredging and de-mucking of excess silt and mud off cofferdam bottom in preparation for grouting
• Chipping and removing of rock that cannot be reached by conventional digging methods
• Checking and setting rock anchors to proper elevations
• Repairing leaks after grouting
• Assist with tremie seal preparation and monitoring concrete pour