Third System
E952370
The Third System was a comprehensive 19th-century U.S. coastal defense program that produced a network of large masonry forts to protect key harbors and strategic points along the American shoreline.
Statements (70)
| Predicate | Object |
|---|---|
| instanceOf |
United States military fortification system
ⓘ
coastal defense program ⓘ |
| appliesToJurisdiction | United States coastline ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedBy | U.S. Army Corps of Engineers NERFINISHED ⓘ |
| endTime | late 19th century ⓘ |
| follows | Second System of U.S. coastal fortifications NERFINISHED ⓘ |
| hasCharacteristic |
casemated gun positions
ⓘ
designed for smoothbore artillery ⓘ designed to deter naval attack ⓘ designed to protect major ports ⓘ large permanent forts ⓘ multi-tiered cannon emplacements ⓘ polygonal bastioned trace ⓘ |
| hasEffect |
provided long-term garrison posts for U.S. Army
ⓘ
shaped harbor defense planning in the 19th century ⓘ strengthened U.S. coastal defense infrastructure ⓘ |
| hasPart |
Fort Adams
NERFINISHED
ⓘ
Fort Adams (Rhode Island) NERFINISHED ⓘ Fort Barrancas NERFINISHED ⓘ Fort Caswell NERFINISHED ⓘ Fort Clinch NERFINISHED ⓘ Fort Constitution (New Hampshire, rebuilt) NERFINISHED ⓘ Fort Delaware NERFINISHED ⓘ Fort Fisher (partly earthen, associated with system) NERFINISHED ⓘ Fort Gaines NERFINISHED ⓘ Fort Gorges NERFINISHED ⓘ Fort Hamilton NERFINISHED ⓘ Fort Independence (Boston Harbor, rebuilt) NERFINISHED ⓘ Fort Jackson (Louisiana) NERFINISHED ⓘ Fort Jackson (Savannah, modernized) NERFINISHED ⓘ Fort Jefferson NERFINISHED ⓘ Fort Knox (Maine) NERFINISHED ⓘ Fort Macon NERFINISHED ⓘ Fort Macon State Park (Third System fort) NERFINISHED ⓘ Fort Massachusetts (Massachusetts) NERFINISHED ⓘ Fort Massachusetts (Mississippi) NERFINISHED ⓘ Fort McAllister (associated earthwork defense) NERFINISHED ⓘ Fort McClary (improved Third System work) NERFINISHED ⓘ Fort McRee NERFINISHED ⓘ Fort Mifflin (modernized Third System elements) NERFINISHED ⓘ Fort Monroe NERFINISHED ⓘ Fort Morgan NERFINISHED ⓘ Fort Pickens NERFINISHED ⓘ Fort Point National Historic Site NERFINISHED ⓘ Fort Popham NERFINISHED ⓘ Fort Pulaski NERFINISHED ⓘ Fort Schuyler NERFINISHED ⓘ Fort Screven (later coastal defense influenced by system) NERFINISHED ⓘ Fort St. Philip NERFINISHED ⓘ Fort Sumter NERFINISHED ⓘ Fort Sumter National Monument NERFINISHED ⓘ Fort Taylor (Fort Zachary Taylor) NERFINISHED ⓘ Fort Trumbull (rebuilt Third System work) NERFINISHED ⓘ Fort Wadsworth (modernized Third System works) NERFINISHED ⓘ Fort Warren NERFINISHED ⓘ Fort Washington (Maryland, rebuilt) NERFINISHED ⓘ Fort Winthrop NERFINISHED ⓘ |
| influencedBy |
French school of fortification
NERFINISHED
ⓘ
works of Sébastien Le Prestre de Vauban ⓘ |
| location |
Atlantic coast of the United States
ⓘ
Gulf Coast of the United States NERFINISHED ⓘ Key harbors and strategic points along the American shoreline ⓘ Pacific coast of the United States NERFINISHED ⓘ |
| mainBuildingMaterial | masonry ⓘ |
| reasonForDevelopment | perceived vulnerability of U.S. coasts after War of 1812 ⓘ |
| replacedBy | Endicott Period coastal defenses NERFINISHED ⓘ |
| significantEvent | American Civil War NERFINISHED ⓘ |
| startTime | circa 1816 ⓘ |
| useDuringConflict | American Civil War NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.