La Grange Lock and Dam

LaGrange Lock and Dam is a lock and dam complex on the Illinois River at Versailles, Illinois. The structure includes a 1,066 feet (325 m) dam and a 110 by 600 feet (34 by 183 m) lock. The U.S. Army Corps of Engineers built the complex from 1936 to 1939; A.F. Griffin designed the lock and dam, while Paul Le Gromwell designed the control station. The lock and dam, as well as a similar lock and dam near Peoria, were needed when the authorized channel depth was raised to nine foot. The Peoria and LaGrange locks replaced older locks on the lower Illinois River. The lock uses Chanoine wicket gates, which allow for navigation on the river, rather than the Tainter gates seen elsewhere on the river.[2][3]

For the dam in California, see La Grange Dam.

LaGrange Lock and Dam Historic District
Aerial view of the dam
La Grange Lock and Dam is located in Illinois
La Grange Lock and Dam
La Grange Lock and Dam is located in the United States
La Grange Lock and Dam
Nearest cityVersailles, Illinois
Coordinates39°56′27″N 90°32′02″W
Area17.6 acres (7.1 ha)
Built1939 (1939)
MPSIllinois Waterway Navigation System Facilities MPS
NRHP reference No.04000170[1]
Added to NRHPMarch 10, 2004

The structure was added to the National Register of Historic Places on March 10, 2004.[1]

References
  1. "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
  2. "LaGrange Lock & Dam" (PDF). U.S. Army Corps of Engineers. Archived from the original (PDF) on January 6, 2014. Retrieved January 4, 2014.
  3. "Illinois Waterway, La Grange Lock and Dam" (PDF). Historic American Engineering Record. Retrieved January 4, 2014.
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