In response to Tuesday’s blasting incident that took place on the site of the Louisville VA Medical Center, three independent investigations have begun to ascertain the cause or causes that led to the fragments of rock and sediment being dispersed along I-264, “Watterson Expressway,” and onto adjacent properties causing damage. The U.S. Army Corps of Engineers, the prime contractor, Walsh-Turner Joint Venture, and the Kentucky Department of Mines and Minerals are conducting these investigations.