This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB CofferDam at Dam No.jpeg check categories September CofferDam at Dam No Great Kanawah River Subject DamsWest Virginia Geographic Subject West VirginiaKanawah River United StatesWest VirginiaClendenin Tag Dams Cite book CofferDam Process for Piers Practical Examples from Actual Work Fowler Charles Evan New York John Wiley