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The Chicago Harbor Lock, also known as the Chicago River & Harbor Controlling Works, is a stop lock and dam located within the Chicago Harbor in Chicago, Illinois at the mouth of the Chicago River. It is a component of the Chicago Area Waterway System, and is used to control water diversion from Lake Michigan into the river and for navigation.
There are three major locks within the CAWS, operated by the Army Corps of Engineers: the Chicago Harbor Lock, the Lockport Lock & Dam, and the T.J. O'Brien Lock and Dam. [4] Artificial waterways connecting the Mississippi and Great Lakes systems via the Chicago area, over the Chicago Portage, began with the I&M Canal in 1848. [5]
The main entrance to this harbor is marked by the Chicago Harbor Lighthouse. The Jardine Water Purification Plant, Navy Pier, the Chicago Harbor Lock, Coast Guard Station Chicago, two municipal harbors (DuSable Harbor and Monroe Harbor), the Chicago Yacht Club, and the Columbia Yacht Club are all located here. [2]
The McCormick Bridgehouse & Chicago River Museum is a 5-floor, 1,613-square-foot (149.9 m 2) museum that opened on June 10, 2006; it is named for Robert R. McCormick, formerly owner of the Chicago Tribune and president of the Chicago Sanitary District. The Robert R. McCormick Foundation was the major donor that helped meet the $950,000 cost to ...
Chicago Harbor Lock; Chicago Sanitary and Ship Canal; Corwith Yard; E. List of Chicago "L" stations; List of former Chicago "L" stations; F. Four Nineteen Building; S.
Floodwaters from the Chicago River can enter Lake Michigan, the source of the area's drinking water, if the river is "reversed" (back to the original flow direction). [8] The opening of Chicago Harbor Lock caused untreated sewage mixed with rain water to enter the lake.
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The lock chamber measures 1,000 by 110 feet (305 m × 34 m) with a maximum lift capability of 5 feet (1.5 m). [ 1 ] [ 2 ] The lock contains a pair of sector gates at either end, which were chosen as they both reduce the cost of engineering and are more conducive to operations in a waterway which can reverse direction.