| Lock and Dam No. 25 | |
|---|---|
Mississippi River Lock and Dam number 25 |
|
| Location | Calhoun County, Illinois / Lincoln County, Missouri, near Winfield, Missouri, USA |
| Construction began | 1935 |
| Opening date | May 18, 1939 |
| Dam and spillways | |
| Length | 1,296 feet (395.0 m) |
| Impounds | Upper Mississippi River |
| Reservoir | |
| Creates | Pool 25 |
| Surface area | 18,000 acres (73 km2) |
Lock and Dam No. 25 is a lock and dam located near Winfield, Missouri on the Upper Mississippi River around river mile 241.4. The movable portion of the dam is 1,296 feet (395.0 m) long and consists of three roller gates and 14 tainter gates. A 2,566 feet (782.1 m) submersible dike extends to the Illinois shore. A 5 miles (8.0 km) long dike is part of the facility extending upstream on the Missouri side of the river. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 25 Historic District, #04000184 covering 3,164 acres (12.8 km2) , 2 buildings, 7 structures, 2 objects.
| 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. 24 |
Downstream: Melvin Price Locks and Dam |