Lock and Dam No. 25

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Mississippi River Lock and Dam number 25 large.jpg
Mississippi River Lock and Dam number 25
Location Richwood Precinct, Calhoun County, Illinois / Burr Oak Township, Lincoln County, Missouri,
near Winfield, Missouri, USA
Coordinates 39°00′17″N 90°41′11″W / 39.00472°N 90.68639°W / 39.00472; -90.68639
Construction began 1935
Opening date May 18, 1939
Operator(s) United States Army Corps of Engineers
Dam and spillways
Impounds Upper Mississippi River
Length 1,296 feet (395.0 m)
Reservoir
Creates Pool 25
Total capacity 176,000 acre·ft (0.217 km3)
Catchment area 142,000 sq mi (370,000 km2)
Surface area 18,000 acres (73 km2)
Lock and Dam No. 25 Historic District
Location 10 Sandy Slough Rd., Winfield, Missouri
Area 316.4 acres (128.0 ha)
Built 1939
Governing body Federal
MPS Upper Mississippi River 9-Foot Navigation Project MPS
NRHP Reference # 04000184[1]
Added to NRHP March 10, 2004

Lock and Dam No. 25 is a lock and dam located near Winfield, Missouri on the Upper Mississippi River around river mile 241.4. The movable portion of the dam is 1,296 feet (395.0 m) long and consists of three roller gates and 14 tainter gates. A 2,566 feet (782.1 m) submersible dike extends to the Illinois shore. A 5 miles (8.0 km) long dike is part of the facility extending upstream on the Missouri side of the river. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 25 Historic District, #04000184 covering 3,164 acres (12.8 km2), 2 buildings, 7 structures, 2 objects.

References[edit]

  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. 

External links[edit]

Locks and dams of the Upper Mississippi River
Upstream:
Lock and Dam No. 24
Downstream:
Melvin Price Locks and Dam

Coordinates: 39°00′17″N 90°41′11″W / 39.00472°N 90.68639°W / 39.00472; -90.68639