USS Long Beach (CLGN-160/CGN-160/CGN-9) was a nuclear-powered

Nuclear marine propulsion

Nuclear marine propulsion is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships...

 guided missile cruiser in the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

. She was the only ship of her class

Long Beach class cruiser

The Long Beach class cruiser is a single-ship class of the United States Navy. The class is noted as the world's first nuclear-powered surface combatant, and the last cruiser built in the US Navy to a cruiser design; all subsequent cruiser classes were built on scaled-up destroyer hulls, or, in...

.

Long Beach was the first "all-new" cruiser designed and constructed after World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 (all others were completions or conversions of cruisers begun or completed during the war). She was the third Navy ship named after the city of Long Beach, California

Long Beach, California

Long Beach is a city situated in Los Angeles County in Southern California, on the Pacific coast of the United States. The city is the 36th-largest city in the nation and the seventh-largest in California. As of 2010, its population was 462,257...

, and the last ship built on a traditional "cruiser hull" in the US Navy; all subsequent cruisers were built on scaled-up destroyer hulls.