US Army Corps of Engineers
Chicago District Website Website

Contact Information

Operations Techical Support Section
Phone: (312) 846-5488

Email: chicago.lock@usace.army.mil

Chicago District Navigation Information

The Chicago District operates and maintains several harbors on the Illinois, Wisconsin and Indiana shores of Lake Michigan and three locks and dams on the Illinois Waterway and Chicago River. Our mission encompasses lock operations and maintenance, breakwater repair, maintenance dredging, and the collection of hydrographic survey data. 

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