La Grange Lock and Dam

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La Grange Lock and Dam Historic District
La Grange Lock and Dam Aerial View.jpg
Aerial view of the dam
La Grange Lock and Dam is located in Illinois
La Grange Lock and Dam
Nearest city Versailles, Illinois
Coordinates 39°56′27″N 90°32′02″W / 39.94083°N 90.53389°W / 39.94083; -90.53389Coordinates: 39°56′27″N 90°32′02″W / 39.94083°N 90.53389°W / 39.94083; -90.53389
Area 17.6 acres (7.1 ha)
Built 1939 (1939)
Governing body Federal
MPS Illinois Waterway Navigation System Facilities MPS
NRHP Reference # 04000170[1]
Added to NRHP March 10, 2004
For the dam in California, see La Grange Dam.

La Grange 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 constructed in response to a Supreme Court order limiting the amount of water which could be diverted from Lake Michigan via the 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]

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


  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. 
  2. ^ "LaGrange Lock & Dam". U.S. Army Corps of Engineers. Retrieved January 4, 2014. 
  3. ^ "Illinois Waterway, La Grange Lock and Dam". Historic American Engineering Record. Retrieved January 4, 2014.