Third System of US fortifications

URI: https://gptkb.org/entity/Third_System_of_US_fortifications
GPTKB entity
Statements (37)
Predicate Object
gptkbp:instanceOf coastal defense system
gptkbp:characteristic multi-tiered gun emplacements
thick masonry walls
bastion design
casemated batteries
gptkbp:country gptkb:United_States
gptkbp:endDate 1867
gptkbp:era 19th century
gptkbp:followedBy gptkb:Endicott_Period_fortifications
gptkbp:fundedBy gptkb:US_Congress
gptkbp:governingBody gptkb:United_States_Army_Corps_of_Engineers
https://www.w3.org/2000/01/rdf-schema#label Third System of US fortifications
gptkbp:influencedBy French military engineering
gptkbp:location gptkb:Great_Lakes
Atlantic coast
Pacific coast
Gulf coast
gptkbp:material gptkb:brick
gptkb:stone
masonry
gptkbp:notableExample gptkb:Fort_Monroe
gptkb:Fort_Point
gptkb:Fort_Sumter
gptkb:Fort_Jefferson
gptkb:Fort_Adams
gptkb:Fort_Morgan
gptkb:Fort_Pulaski
gptkbp:notableModel gptkb:Joseph_G._Totten
gptkb:Simon_Bernard
gptkbp:numberOfForts over 40
gptkbp:precededBy gptkb:Second_System_of_US_fortifications
gptkbp:purpose defense against naval attack
gptkbp:reasonForDevelopment War of 1812 vulnerabilities
gptkbp:startDate 1816
gptkbp:status obsolete after Civil War
gptkbp:bfsParent gptkb:Fort_Knox_(Maine)
gptkbp:bfsLayer 5