List of coastal fortifications of the United States

The United States has built numerous coastal defenses to defend main cities, ports and straits. Some listed were built by other nations and are now on United States territory.

State	City	Name	Established	Deactivated	Notes
Alabama
	Mobile	Fort Charlotte	1702	1820	Now reconstructed as a tourist site.
		Fort Gaines	1821	1926
		Fort Morgan	1834
Alaska
California
	San Diego	Fort Guijarros	1797
	San Francisco	Fort Baker		n/a	Coast Guard Station
		Fort Mason	1864	1970
		Fort Miley
		Fort Point	1794	<1970
		Presidio of San Francisco		1948	Battery Chamberlin was the coast defense element.
Connecticut
	New London	Fort Trumbull
Delaware
	Delaware City	Fort Delaware
District of Columbia
	Washington, D.C.	Fort Foote
Florida
	Apalachicola River	Fort Gadsden			Many British and Spanish forts on this site
	Amelia Island	Fort Clinch
	Pensacola	Fort Barrancas	1698	1947
		Fort George	1778		British fort
		Fort McRee	1834	1947
		Fort Pickens	1829		Destroyed by a hurricane in 1906.
	Tampa	Fort Brooke			Site of the Tampa Convention Center
		Fort Dade
	Florida Keys	Fort Zachary Taylor
Georgia
	Savannah	Fort Pulaski
Hawaii
	Pearl Harbor	Fort DeRussy
		Fort Weaver
		Fort Kamehameha
Louisiana
	New Orleans	Fort Jackson
		Fort Livingston		1889	Ruins only
		Fort Saint Philip
Maine
	Bangor	Fort Knox
	Bath	Fort Baldwin	1905
		Fort Popham
	Portland	Fort Gorges	1865	1960
		Fort Preble
		Fort Scammel	1808
	Wiscasset	Fort Edgecomb	1808
Maryland
	Baltimore	Fort Carroll	1890	1928	On an island near center of the bridge
		Fort Howard	1896	1940
		Fort McHenry		1925	Now a national park
		Fort Smallwood	1890	1928	Now a park
Massachusetts
	Boston	Fort Independence			Built by the British as Castle William
		Fort Strong			on Long Island
		Fort Warren
Mississippi
	Ship Island	Fort Massachusetts
New Hampshire
	Portsmouth	Fort Constitution	1808	1961
New Jersey
	Trenton	Fort Billingsport	1777
		Fort Mercer	1777
New York
	New York City	Fort Hamilton	1825	in use
	New York City	Castle Williams	1807	1993	National Park Service property, part of Governors Island National Monument
	Montauk	Camp Hero		1984
		Fort H. G. Wright	1878	Late 1950s	Fishers Island
	Brooklyn	Fort Lafayette	1818	1960	Destroyed by the construction of the Verrazano-Narrows Bridge.
		Fort Michie			Great Gull Island
	Bronx	Fort Schuyler
		Fort Terry	1879	1954	Plum Island of the north fork of Long Island
	Queens	Fort Totten	1857	n/a
	See note	Fort George, New York			Name used for several sites in New York state
North Carolina
	Wilmington	Fort Fisher	1861	1865	Confederate fort
Oregon
	Columbia River	Fort Stevens	1863	1947
Pennsylvania
	Philadelphia	Fort Mifflin	1771	1954
Puerto Rico
	Roosevelt Roads	Fort Bundy
	San Juan	El Moro
Rhode Island
	Newport	Fort Adams
South Carolina
	Charleston	Castle Pinckney
		Fort Moultrie
		Fort Sumter
		Fort Wagner
Texas
	Bolivar	Fort Travis
	Galveston	Fort San Jacinto
		Fort Crocket
Vermont
	Albany, New York	Fort Independence	1756	1777	Captured
Virginia
	Norfolk	Fortress Monroe	1609	2012	transferred to State for tourist and commercial use
	Richmond	Fort Darling			Confederate Fort during the American Civil War
Washington
	Columbia River	Fort Columbia
	Puget Sound	Fort Casey
		Fort Canby
		Fort Flagler
		Fort Ward
		Fort Worden