chevaux-de-frise river obstructions
E589907
Chevaux-de-frise river obstructions were defensive underwater barriers—typically consisting of large wooden frames armed with iron-tipped spikes—used to block or damage enemy ships navigating strategic waterways.
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
naval defensive barrier
ⓘ
river obstruction ⓘ underwater military fortification ⓘ |
| adaptedFrom | cheval-de-frise anti-cavalry defenses ⓘ |
| alternativeLabel |
chevaux-de-frise naval obstructions
ⓘ
chevaux-de-frise underwater barriers ⓘ |
| camouflage | often submerged below waterline ⓘ |
| category |
coastal and riverine defenses
ⓘ
military engineering ⓘ |
| designedTo |
impale ship hulls
ⓘ
snag ship rigging or rudders ⓘ tear out ship planking ⓘ |
| effect |
force ships to slow or stop
ⓘ
increase vulnerability of ships to shore batteries ⓘ |
| hasComponent |
iron-tipped spikes
ⓘ
large wooden frames ⓘ |
| hasFunction |
block enemy ships
ⓘ
control navigation on waterways ⓘ damage enemy ships ⓘ |
| historicalUse | early modern period naval warfare ⓘ |
| installationMethod |
anchored to riverbed
ⓘ
sometimes chained together in lines ⓘ |
| maintenance | periodic inspection for shifting or damage ⓘ |
| material |
iron
ⓘ
wood ⓘ |
| notableExampleLocation |
Delaware River
NERFINISHED
ⓘ
Hudson River NERFINISHED ⓘ |
| positioned |
across river channels
ⓘ
underwater ⓘ |
| purpose |
create choke points for artillery fire
ⓘ
deny passage to enemy fleets ⓘ protect upriver cities and forts ⓘ |
| relatedTo | cheval-de-frise land obstacles ⓘ |
| requires | knowledge of local river depth and currents ⓘ |
| risk | hazardous to friendly navigation if not clearly marked ⓘ |
| structuralForm | frame with projecting spikes ⓘ |
| tacticalRole |
area denial
ⓘ
channeling enemy movement ⓘ |
| usedAgainst | British naval forces ⓘ |
| usedBy | American forces in the American Revolutionary War ⓘ |
| usedDuring |
18th century
ⓘ
American Revolutionary War NERFINISHED ⓘ |
| usedIn | strategic waterways ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.