Hmmm...a clue. This is from Lighthouse Friends and slightly modified.
By the early 1930s, erosion had put the _________ Lighthouse in danger of falling into the sea, and in 1932 a new tower was built further inland. The old tower was left standing until the new thirty-one foot steel tower was completed in June of 1932. Just six years later, a hurricane tore another big chunk out of the bank, and after the storm the new tower was inches away from falling into the water as well. The following year, a series of massive jacks lifted the thirty-five ton tower and moved it even further inland to its present location. It was placed on an eight-foot tall concrete base so that ships could see its beacon over the top of the keeper's house. The move only took one day, and the light continued to shine throughout the entire move.