| Peoria Lock and Dam Historic District | |
| Nrhp Type: | hd |
| Nocat: | yes |
| Location: | 1071 Wesley Rd., Creve Coeur, Illinois |
| Coordinates: | 40.6319°N -89.625°W |
| Built: | -39 |
| Architect: | LeGromwell, Paul |
| Added: | March 10, 2004 |
| Mpsub: | Illinois Waterway Navigation System Facilities MPS |
| Refnum: | 04000169 |
The Peoria Lock and Dam is a historic lock and dam complex on the Illinois River at Creve Coeur, Illinois. The complex was built in 1938-39 as part of an effort to make the river navigable and establish a route for barges between Chicago and the Mississippi River.[1] [2] The U.S. Army Corps of Engineers designed the complex; their influence is particularly evident in the dam's control station, as the State of Illinois designed most other dam control stations along the river. The lock has a standard 100feetx600feetft (xft) chamber, similar to other locks on the river, and a vertical lift of . The dam is long and includes 108 wicket gates and a Tainter gate; it is one of two Illinois dams that still use wicket gates.[3] The control station is for the most part a large, functional building, though it has Art Deco surrounds at the main entrance. The district also contains an original maneuver boat designed to raise and lower the dam's wicket gates; the boat is still used and is one of four boats of its kind left in the United States.[4]
The complex was added to the National Register of Historic Places on March 10, 2004.
Significant repairs were made during July through October 2020.[5] [6] [7] After securing a multi-million dollar federal funding appropriation in 2022, the Peoria Lock and Dam is expected to further update its infrastructure.[8]