Jayne Singleton, director of the Spokane Valley Heritage Museum, is ready to open the Grand Coulee Dam and Ice Floods exhibit. The box hanging from the ceiling denotes one cubic yard. Grand Coulee Dam contains around 12 million cubic yards of concrete.
March 9, 2013 in Washington Voices on Page V1
Try to imagine 12 million cubic yard blocks of concrete as the building blocks of the Grand Coulee Dam. It’s tough to wrap your mind around, but a new exhibit …