Lockport Lock, Dam and Power House Historic District | |
 Lockport Dam, Lock and Powerhouse | |
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 Interactive map showing the location of Lockport Powerhouse | |
| Nearest city | Lockport Township, near Lockport, Illinois |
|---|---|
| Coordinates | 41°34′10″N 88°04′44″W / 41.56944°N 88.07889°W |
| Area | 44.2 acres (17.9 ha) |
| Built | 1910 |
| Built by | Joseph J. Duffy, Lorimer & Gallacher Co (original lock) Green & Sons co (Navigation lock) Schmidt Brothers Construction Co (control station) |
| Architect | Frederick L. Barrett (power house) |
| Engineer | Isham Randolph (original lock) Walter M. Smith (control station), Illinois state engineers (Navigation lock) M.G. Barnes, Walter M. Smith, R.S. Heath, Fred Hendershot (Lockport) |
| Architectural style | Renaissance |
| MPS | Illinois Waterway Navigation System Facilities MPS |
| NRHP reference No. | 04000167[1] |
| Added to NRHP | March 10, 2004 |
The Lockport Powerhouse is an American run-of-the-river dam used by the Metropolitan Water Reclamation District of Greater Chicago to control the outflow of the Sanitary and Ship Canal and limit the diversion of water from Lake Michigan into the Des Plaines River.