The rehab work was necessary at the locks to extend their lifespan. Construction began on the youngest, Peoria, in 1936 and on the oldest, Marseilles, in 1920.
![](https://cityofmarseilles.com/wp-content/uploads/2020/11/5645EBDC-DCF0-4669-8052-F8E7C8FED0F1_4_5005_c.jpeg)
The rehab work was necessary at the locks to extend their lifespan. Construction began on the youngest, Peoria, in 1936 and on the oldest, Marseilles, in 1920.