SILVERDALE – A mine found floating in waters between Brownsville and Bainbridge Island was from a training exercise performed more than a decade ago, according to the U.S. Navy.
The mine was discovered by the Washington State Department of Natural Resources on Tuesday afternoon, and it appeared to have years of marine growth on its exterior.
“It was determined the mine was from an exercise Naval Undersea Warfare Command, Keyport, conducted in 2005,” a Navy spokesperson said. “This exercise was an opportunity for academia to demonstrate various Unmanned Underwater Vehicles and their capability to detect underwater objects and avoid submerged obstacles.”
During this exercise, inert training mines were placed in areas between Brownsville, Keyport, and Bainbridge Island. Only a small number of the training mines were buoyant, and not all training mines were recovered, the Navy said.
“It has been confirmed the device destroyed Tuesday was a positively buoyant, inert training mine used during the 2005 exercise,” the spokesperson said, adding that the area will be surveyed for any remaining buoyant mines.