Peoria Lock and Dam

{{Use American English|date=January 2025}}

{{Use mdy dates|date=August 2023}}

{{Infobox NRHP

| name = Peoria Lock and Dam Historic District

| nrhp_type = hd

| nocat = yes

| image = VIEW OF LOCK FROM UPSTREAM. CONTROL HOUSE AT LEFT REAR. TAINTER GATE AT RIGHT REAR. LOOKING SOUTH SOUTHWEST. - Illinois Waterway, Peoria Lock and Dam, 1071 Wesley Road, Creve Coeur, HAER IL-164-B-12.tif

| caption = The lock from upstream

| location = 1071 Wesley Rd., Creve Coeur, Illinois

| coordinates = {{coord|40|37|55|N|89|37|30|W|region:US-IL_type:landmark_dim:200_source:GoogleEarth-eyeball-Closeapple|display=inline,title}}

| locmapin = Illinois#USA

| built = {{Start date|1938}}-39

| architect = LeGromwell, Paul

| added = March 10, 2004

| area = {{convert|27.3|acre}}

| mpsub = Illinois Waterway Navigation System Facilities MPS

| refnum = 04000169{{NRISref|version=2010a}}

}}

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.{{Cite web |last=Lynn |first=Greg |date=2017-05-19 |title=A Historic Complex |url=https://www.peoriamagazine.com/archive/ibi_article/2017/historic-complex/ |access-date=2023-09-18 |website=Peoria Magazine |language=en-US}}{{Cite web |last=Alani |first=Hannah |date=2022-02-02 |title='An incredible system': 1930s-era Peoria Lock and Dams included in $829 million for waterway improvements |url=https://www.wcbu.org/local-news/2022-02-02/an-incredible-system-1930s-era-peoria-lock-and-dams-included-in-829-million-for-waterway-improvements |access-date=2023-09-18 |website=WCBU Peoria |language=en}} 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 {{convert|100|x|600|ft|adj=on}} chamber, similar to other locks on the river, and a vertical lift of {{convert|11|ft}}. The dam is {{convert|536|ft}} long and includes 108 wicket gates and a Tainter gate; it is one of two Illinois dams that still use wicket gates.{{Cite web |title=Peoria Lock and Dam |url=https://www.mvr.usace.army.mil/Missions/Navigation/Lock-and-Dam-Information/Peoria-Lock-and-Dam/ |access-date=2023-09-18 |website=www.mvr.usace.army.mil}} 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.{{cite web|last1=Henning|first1=Barbara J.|title=National Register of Historic Places Registration Form: Peoria Lock and Dam Historic District|url=http://gis.hpa.state.il.us/pdfs/223449.pdf|archive-url=https://web.archive.org/web/20150927182928/http://gis.hpa.state.il.us/pdfs/223449.pdf|url-status=dead|archive-date=2015-09-27|publisher=Illinois Historic Preservation Agency|access-date=September 27, 2015|date=2001}}

The complex was added to the National Register of Historic Places on March 10, 2004.

Significant repairs were made during July through October 2020.{{Cite web |last=Sheehan |first=Matt |date=2018-11-12 |title=Peoria Lock and Dam to close for up to four months in 2020 |url=https://www.centralillinoisproud.com/news/local-news/peoria-lock-and-dam-to-close-for-up-to-four-months-in-2020/ |access-date=2023-09-18 |website=CIProud.com |language=en-US}}{{Cite web |title=Peoria lock and dam tour |url=https://www.pjstar.com/picture-gallery/news/2020/08/06/peoria-lock-and-dam-tour/114347958/ |access-date=2023-09-18 |website=Peoria Journal Star |language=en-US}}{{Cite web |last=Grant |first=Daniel |date=2020-07-15 |title='Much-needed' work underway on locks and dams along Illinois River |url=https://www.farmweeknow.com/general/much-needed-work-underway-on-locks-and-dams-along-illinois-river/article_0958fd02-c6a5-11ea-b3f5-c3a072e0ab20.html |access-date=2023-09-18 |website=FarmWeek Now |language=en}} After securing a multi-million dollar federal funding appropriation in 2022, the Peoria Lock and Dam is expected to further update its infrastructure.{{Cite web |last=Eggert |first=Timothy |date=2022-02-15 |title=Durbin: Lock and dam upgrades a 'game changer' for Illinois farmers |url=https://www.effinghamdailynews.com/news/durbin-lock-and-dam-upgrades-a-game-changer-for-illinois-farmers/article_eebefd68-8e7e-11ec-b5dd-43453b03857d.html |access-date=2023-09-18 |website=Effingham Daily News |language=en}}