Jump to content

T.J. O'Brien Lock and Dam

Coordinates: 41°39′08″N 87°34′02″W / 41.6521°N 87.5672°W / 41.6521; -87.5672
From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Bamyers99 (talk | contribs) at 15:41, 12 July 2020 (updated reference). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

T. J. OBrien Lock and Dam
LocationHegewisch, Chicago
Opening date1960
Construction cost$6,954,700
Operator(s) United States Army Corps of Engineers Rock Island District
Dam and spillways
Type of dam4 slide gate sections
ImpoundsCalumet River to Lake Michigan harbor
Length297 feet (91 m)
Reservoir
Normal elevation577 feet (176 m) above sea level

Thomas J. O'Brien Lock & Dam is a lock on the Calumet River on the south side of Chicago. (The Calumet River is a tributary to the Chicago Sanitary and Ship Canal, which flows into the Des Plaines River, the Illinois River and then the Mississippi.) The dam is 326 river miles (525 km) from the Mississippi-Illinois confluence. The up-river side of the dam is at Lake Michigan's level, 577 feet (176 m) above sea level. The lock dimensions are 1,000 by 110 feet (305 m × 34 m).[1]

See also

References

  1. ^ Thomas J. O’Brien Lock & Dam. U.S. Army Corps of Engineers. Retrieved July 12, 2020.

41°39′08″N 87°34′02″W / 41.6521°N 87.5672°W / 41.6521; -87.5672