Alton Lock and Dam

E379465

Alton Lock and Dam is a major navigation and flood-control structure on the Mississippi River that helps regulate river traffic and water levels as part of the Illinois Waterway system.

All labels observed (1)

Label Occurrences
Alton Lock and Dam canonical 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf flood-control structure ⓘ
lock and dam ⓘ
navigation structure ⓘ
alsoKnownAs Lock and Dam No. 26 (replacement) ⓘ
auxiliaryLockLength 600 ft ⓘ
auxiliaryLockWidth 110 ft ⓘ
constructionStartDate 1935 ⓘ
coordinates 38.890°N 90.184°W ⓘ
country United States ⓘ
damType roller-gate dam ⓘ
function regulates river traffic ⓘ
regulates water levels ⓘ
hasHeritageDesignation National Register of Historic Places ⓘ
hasPart Alton Dam ⓘ
Alton Lock ⓘ
auxiliary lock ⓘ
main lock ⓘ
roller gates ⓘ
spillway ⓘ
inception 1938 ⓘ
locatedAtRiverMile 203 ⓘ
locatedDownstreamFrom Lock and Dam No. 25 ⓘ
locatedInOrNextToBodyOfWater Mississippi River ⓘ
locatedInTheAdministrativeTerritorialEntity Madison County, Illinois ⓘ
St. Charles County, Missouri ⓘ
locatedNear Alton, Illinois ⓘ
locatedUpstreamFrom Chain of Rocks Lock and Dam ⓘ
mainLockLength 1200 ft ⓘ
mainLockWidth 110 ft ⓘ
maintainedBy United States Army Corps of Engineers ⓘ
nearbyCity Alton, Illinois ⓘ
West Alton, Missouri ⓘ
NRHPListingDate 2004 ⓘ
numberOfLocks 2 ⓘ
openingDate 1938 ⓘ
operatedBy United States Army Corps of Engineers St. Louis District ⓘ
partOf Illinois Waterway ⓘ
Upper Mississippi River system ⓘ
purpose flood control ⓘ
navigation ⓘ
water level regulation ⓘ
replaced original Lock and Dam No. 26 at Alton ⓘ
river Mississippi River ⓘ
state Illinois ⓘ
Missouri ⓘ
usedFor commercial barge traffic ⓘ
recreational boating ⓘ
waterwaySystem Illinois Waterway ⓘ

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Illinois Waterway system → hasPart → Alton Lock and Dam ⓘ