BILLINGS, Montana, May 21 -- The U.S. Department of the Interior's Bureau of Reclamation issued the following news release: At approximately 3:00 p.m. on Sunday, May 17, a concrete drop structure failed on the Bureau of Reclamation's Milk River Project St. Mary Canal, northwest of the town of Cut Bank in northern Montana, located on the Blackfeet Indian Reservation. When the damage was reported, the canal was flowing approximately 200 cubic-feet-per-second (CFS) which is about 1/3 of the canal'  more