A pair of spurs was extended into Lake Erie from the breakwaters, effectively extending the entrance to the harbor and river farther out into Lake Erie. In 1911, the Cleveland Harbor West Pierhead Lighthouse, the large structure that remains standing today, was built at the eastern end of the extended western breakwater. The conical, cast-iron tower incorporated the keeper’s quarters and was fitted with a fourth-order Fresnel lens. In 1916, a one-and-a-half-story fog signal building was added. The fog signal was affectionately known as the “cow” because of the deep mooing sound it made. In spite of its whimsical name, the whistle was a valuable asset to sailors, as its signal penetrated twelve miles — two miles farther than the beacon on the west pierhead.