Anchorage was awarded to Ingalls Shipbuilding in Pascagoula, Mississippi on 29 June 1965 and her keel was laid down on 13 March 1967. She was launched on 5 May 1968 and commissioned on 15 March 1969. Outfitted with a large floodable stern section accessed through an enormous operable stern gate, Anchorage served as a launch platform for large landing craft, such as the LCU, as well as a "boat haven" to shelter other small craft utilized in an amphibious landing. The ship was able to provide a minimal degree of naval gunfire support through the use of two sets of twin 3"/50 guns mounted on the 02-level fore and aft. In later years these guns were removed to be replaced with Mk-38 machine guns and two Phalanx CIWS for missile defense. In its final decade of service with the US Navy, it funct