Lock and Dam No. 20
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| Lock and Dam No. 20 | |
 Mississippi River Lock and Dam number 20 |
|
| Impounds | Upper Mississippi River |
|---|---|
| Creates | Pool 20 |
| Locale | Canton, Missouri |
| Maintained by | United States Army Corps of Engineers |
| Length | 2,369 feet (722.1 m) |
| Construction began | 1932 |
| Opening date | November 20, 1935 |
| Construction Cost | US$4.45 million |
| Geographical Data | |
| Coordinates | |
Lock and Dam No. 20 is a lock and dam located on the Upper Mississippi River, about one mile upstream from Canton, Missouri.
The structure is located at river mile 343.1. It includes a 2,369 feet (722.1 m) long dam, 40 tainter gates, 3 roller gates, and a lock chamber that is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. 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. 25 Historic District, #04000180 covering 839 acres (3.4 km²), 1 building, 6 structures, 3 objects.
[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. 19 |
Downstream: Lock and Dam No. 21 |
