Lock and Dam No. 21
| Lock and Dam No. 21 | |
|---|---|
 Mississippi River Lock and Dam number 21 |
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| Location | Adams County, Illinois / Marion County, Missouri, near Quincy, Illinois, USA |
| Coordinates | 39°54′21.97″N 91°25′55.87″W / 39.9061028°N 91.4321861°W |
| Construction began | 1933 |
| Opening date | July 23, 1938 |
| Dam and spillways | |
| Length | 1,265 feet (385.6 m) (movable portion) |
| Impounds | Upper Mississippi River |
| Reservoir | |
| Creates | Pool 21 |
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Lock and Dam No. 21 Historic District
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| Location: | 0.5 mi. W of IL 57, Quincy, Illinois |
| Area: | 107.5 acres (43.5 ha) |
| Built: | 1938 |
| Governing body: | Federal |
| MPS: | Upper Mississippi River 9-Foot Navigation Project MPS |
| NRHP Reference#: | 04000181[1] |
| Added to NRHP: | March 10, 2004 |
Lock and Dam No. 21 is a lock and dam located at Quincy, Illinois on the Upper Mississippi River around river mile 324.9. The movable portion of the dam is 1,265 feet (385.6 m) long and consists of three roller gates and ten tainter gates. A 1,400 feet (426.7 m) long submersible dike continues to the Missouri shore. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long and there is also an incomplete auxiliary lock. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 21 Historic District, #04000181 covering 1,075 acres (4.4 km2), 1 building, 4 structures, 4 objects.
Currently there is a study being conducted by the city of Quincy to convert Lock & Dam No. 21, 20, and 22 into being hydroelectric by 2016. (Source:WGEM)
[edit] References
- ^ "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. http://nrhp.focus.nps.gov/natreg/docs/All_Data.html.
[edit] External links
| Locks and dams of the Upper Mississippi River | |
|---|---|
| USAF • LSAF • 1 • 2 • 3 • 4 • 5 • 5A • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 24 • 25 • 26 • 27 | |
| Upstream: Lock and Dam No. 20 |
Downstream: Lock and Dam No. 22 |
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This article about a property in Illinois on the National Register of Historic Places is a stub. You can help Wikipedia by expanding it. |
- Historic districts in Illinois
- National Register of Historic Places in Illinois
- Buildings and structures completed in 1938
- Buildings and structures in Adams County, Illinois
- Buildings and structures in Marion County, Missouri
- Mississippi River locks
- Dams in Missouri
- Dams in Illinois
- Adams County, Illinois
- Illinois Registered Historic Place stubs
