Third System of US seacoast defense

E58935

United States military program coastal fortification program

The Third System of US seacoast defense was a 19th-century American coastal fortification program that constructed large, permanent masonry forts to protect key harbors and strategic points along the nation’s shoreline.

Aliases (2)

Statements (50)

Predicate	Object
instanceOf	United States military program → coastal fortification program →
appliesToJurisdiction	United States coastline →
architecturalStyle	masonry fortification →
country	United States →
endTime	late 19th century →
follows	Second System of US seacoast defense →
hasGoal	defense of strategic coastal points → protection of key harbors →
hasPart	Fort Adams → Fort Barrancas (Third System reconstruction) → Fort Caswell → Fort Clinch → Fort Delaware → Fort Gaines → Fort Gorges → Fort Independence (Boston Harbor, rebuilt) → Fort Jackson (Louisiana) → Fort Jefferson → Fort Knox (Maine) → Fort Macomb → Fort Macon → Fort Massachusetts (Massachusetts) → Fort Massachusetts (Mississippi) → Fort Massachusetts (Ship Island) → Fort McRee → Fort Monroe → Fort Morgan → Fort Moultrie (Third System reconstruction) → Fort Pickens → Fort Pike → Fort Point (Boston) → Fort Point (Galveston, planned/partial) → Fort Point (San Francisco) → Fort Popham → Fort Pulaski → Fort Schuyler → Fort St. Philip → Fort Sumter → Fort Taylor → Fort Totten (New York) → Fort Trumbull (Third System reconstruction) → Fort Warren → Fort Washington (Potomac River) →
partOf	United States seacoast defense systems →
replacedBy	Endicott Period coast defenses →
significantEvent	American Civil War →
startTime	circa 1816 →
uses	brick masonry → stone masonry →

Referenced by (4)

Subject (surface form when different)	Predicate
Fort Monroe, Virginia ("Third System of U.S. seacoast fortifications") → Fort Pickens ("Third System of U.S. seacoast fortifications") →	partOf
Fort Barrancas ("Third System coastal fortification") →	architecturalStyle
Fort Sumter →	builtDuring