Lock and Dam No. 22

Lock and Dam No. 22

Mississippi River Lock and Dam No. 22
Location of Lock and Dam No. 22 in Missouri
Location Cincinnati Township, Pike County, Illinois / Saverton Township, Ralls County, Missouri,
near Saverton, Missouri
Coordinates 39°38′18″N 91°14′49″W / 39.63833°N 91.24694°W / 39.63833; -91.24694Coordinates: 39°38′18″N 91°14′49″W / 39.63833°N 91.24694°W / 39.63833; -91.24694
Construction began 1934
Opening date July 22, 1938
Operator(s) United States Army Corps of Engineers
Dam and spillways
Impounds Upper Mississippi River
Length 1,224 feet (373.1 m) (movable portion)
Reservoir
Creates Pool 22
Total capacity 80,000 acre·ft (0.099 km3)
Catchment area 137,500 sq mi (356,000 km2)
Lock and Dam No. 22 Historic District
Location Secondary Rd. E, New London, Missouri
Area 126.8 acres (51.3 ha)
Built 1938
MPS Upper Mississippi River 9-Foot Navigation Project MPS
NRHP Reference # 04000182[1]
Added to NRHP March 10, 2004

Lock and Dam No. 22 is a lock and dam located near Saverton, Missouri on the Upper Mississippi River around river mile 301.2. The movable portion of the dam is 1,224 feet (373.1 m) long and consists of three roller gates and ten tainter gates. A 1,600 feet (487.7 m) long submersible earthen dike extends to a flood control levee on the Illinois shore. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long; there is also an incomplete auxiliary lock.[2] In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 22 Historic District, #04000182 covering 1,268 acres (5.1 km2), 1 building, 5 structures, 4 objects.

When the northern part of Mississippi freezes, near the first week of February, upwards of 20 bald eagles fly down to fish in the churning waters below Lock and Dam No. 22.

Public Works Administration and Army Corps of Engineers building Lock and Dam No. 22

See also

References

  1. ↑ National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service.
  2. ↑ "Lock & Dam 22" (PDF). U.S. Army Corps of Engineers. Archived from the original (PDF) on January 22, 2015.
Locks and dams of the Upper Mississippi River
Upstream:
Lock and Dam No. 21		 Downstream:
Lock and Dam No. 24


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