 So the lighthouse was decommissioned on October 1, 1874, because the newer Yaquina Head Light made it obsolete.The fifth-order Fresnel lens was then installed in the Yerba Buena Light in California for its opening in 1875.The United States Army Corps of Engineers used the lighthouse from 1888 to 1896 as their living quarters while they built the North and South Jetties at the mouth of Yaquina Bay.