On November 28 , 1940 , the U.S. Navy 's Hydrographic Office reported that the remains of the bridge were located at geographical coordinates , at a depth of 180 feet ( 55 meters ) .
On November 28 , 1940 , the U.S. Navy 's Hydrographic Office said that the parts of the bridge were at geographical coordinates , at a depth of 180 feet ( 55 meters ) .