Coffer dams to be built on the Congaree River to remove tar, Civil War artifact discovery is possible
By Terry Ward The process to clean up the coal tar in the Congaree River has begun. Dominion Energy has contracted a company to build two coffer dams on the Columbia side of the river. The first coffer dam will be built across from the West Columbia Riverwalk Amphitheater. RoadsContinue Reading