Thomas J O'Brien Lock and Dam
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Hyde Park Township
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Thomas J O'Brien Lock and Dam
Thomas J O'Brien Lock and Dam, also known as Thomas J. O'Brien Lock and Controlling Works Dam in Cook County.
Thomas J O'Brien Lock and Dam
alt_name
Thomas J. O'Brien Lock and Controlling Works Dam
Operator
United States Army Corps of Engineers
Waterway
dam
Thomas J. O'Brien Lock and Dam
O'Brien Marsh
East 134th Street
Ave O & 134th St, Avenue O & 134th Street
Calumet River