What is the largest concrete dam in the United States?
Answer Grand Coulee Dam
Grand Coulee Dam west of Spokane, Washington, is the largest concrete dam in the United States. Standing 550 feet high and almost a mile long, the dam has enough concrete in it to build a highway from Spokane to Miami. There are 12 million cubic yards of concrete in this one dam alone. It is on the list of the 7 engineering marvels of the United States.
Asked by Jennifer Sinclair · Last updated 5 years ago · 5K views · SOURCE
