Columbia River, State of Washington. Grand Coulee Dam is concrete . Constructed between 1933 and 1942, The dam supplies four power stations with an installed capacity of 6,809 MW. As the center-piece of the Columbia Basin Project, the dam’s reservoir supplies water for the irrigation of 671,000 acres. Hundreds of tons of crushed glass 30/50 have been used on various maintenance projects over the years.
Wal-Mart, required the removal of a urethane paint from the outside of 20 stores. The challenge for the contractor was Wal-Mart did not want the base material to be affected by the sandblasting. A consistent profile was important. Crushed Glass 40/70 was the choice for the blast media.