| Lock and Dam No. 22 | |||||||||||||||||||||
| Dam Crosses: | Upper Mississippi River | ||||||||||||||||||||
| Res Name: | Pool 22 | ||||||||||||||||||||
| Location: | Cincinnati Township, Pike County, Illinois / Saverton Township, Ralls County, Missouri, near Saverton, Missouri | ||||||||||||||||||||
| Operator: | U.S. Army Corps of Engineers, Rock Island District | ||||||||||||||||||||
| Dam Length: | 1224feet (movable portion) | ||||||||||||||||||||
| Construction Began: | 1934 | ||||||||||||||||||||
| Opening: | July 22, 1938 | ||||||||||||||||||||
| Res Capacity Total: | 80000acre feet | ||||||||||||||||||||
| Res Catchment: | 137500mi2 | ||||||||||||||||||||
| Location Map: | Missouri | ||||||||||||||||||||
| Coordinates: | 39.6383°N -91.2469°W | ||||||||||||||||||||
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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 1224feet long and consists of three roller gates and ten tainter gates. A 1600feet long submersible earthen dike extends to a flood control levee on the Illinois shore. The main lock is 110feet wide by 600feet long; there is also an incomplete auxiliary lock.[1] In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 22 Historic District, #04000182 covering 1268acres, 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.