La Grange Lock and Dam

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La Grange Lock and Dam, Navigation lock and embankment dam on Illinois River, Brown County, United States.

The La Grange Lock and Dam spans 1,066 feet across the Illinois River, featuring a lock chamber measuring 110 by 600 feet to regulate water levels.

The U.S. Army Corps of Engineers completed the construction of this navigation infrastructure between 1936 and 1939 to accommodate nine-foot channel depths.

The National Register of Historic Places recognized this engineering structure in 2004 for its role in the Illinois Waterway Navigation System.

The lock chambers fill and empty with water to raise or lower vessels between different river elevations, enabling continuous navigation throughout the year.

The facility incorporates Chanoine wicket gates for navigation control, distinguishing it from other river facilities that use Tainter gate systems.

Location: Brown County

Elevation above the sea: 134 m

GPS coordinates: 39.94080,-90.53390

Latest update: March 13, 2025 11:36

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« La Grange Lock and Dam - Navigation lock and embankment dam on Illinois River, Brown County, United States. » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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