St. Paul District > Missions > Navigation > Locks & Dams > Lock & Dam 7

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Lock & Dam 7

Located on Mississippi River mile 702.5 near LaCrescent, Minnesota.
Constructed and placed in operation in 1935. The site underwent major rehabilitation from 1989 through 2002.
Dam consists of concrete structure 940 feet long, five roller gates and 11 Tainter gates.
Lock is 110 feet wide by 600 feet long.
Brochure

Recreation Opportunities

The observation deck is currently OPEN.

Lock and Dam 7

Lock and Dam 7, La Crescent, Minn.

Contact Information

U.S. Army Corps of Engineers
St. Paul District
Lock and Dam No. 7
33018 Highway 61
La Crescent, MN 55947-9502

(507) 895-2170