The United States Coast Guard took over the Lighthouse Service in 1939. The lighthouse building sustained major damage in 1960 after a storm caused waves that crested above the light and flooded the building with mud, but the lens remained undamaged. Later during the Cold War, the station was used to simulate a Soviet radar base in training exercises. The Coast Guard manned the station until 1973, when the lens was covered and a modern rotating beacon was mounted on a metal stand on the roof west of the lantern room.