Lock and Dam No. 22
Lock and Dam No. 22 | |
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![]() Mississippi River Lock and Dam No. 22 | |
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 |
Construction began | 1934 |
Opening date | July 22, 1938 |
Operator(s) | ![]() |
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 |
Architect | US Army Corps of Engineers; Abbott, Edwin E., et al. |
MPS | Upper Mississippi River 9-Foot Navigation Project MPS |
NRHP reference No. | 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 froze in the first week of February 2007, upwards of 20 bald eagles flew down to fish in the churning waters below Lock and Dam No. 22.[citation needed]
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See also
[edit]References
[edit]- ^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- ^ "Lock & Dam 22" (PDF). U.S. Army Corps of Engineers. Archived from the original (PDF) on January 22, 2015.
External links
[edit]Media related to Mississippi River Lock and Dam number 22 at Wikimedia Commons
- Lock and Dam No. 22 - U.S. Army Corps of Engineers
- Historic American Engineering Record (HAER) No. MO-35, "Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 22, Upper Mississippi River, Saverton, Ralls County, MO", 21 photos, 15 data pages, 2 photo caption pages