Lock 25 1200’ Lock (Navigation)
Lock 25 is one of seven 1200’ lock chambers authorized by the program and the first to be funded for construction. Lock 25 received $732M to fully fund the project to completion.
The project scope includes a new 1200’ lock chamber adjacent to the existing 600’ chamber and upstream/downstream approach walls. When complete, the new lock will improve the efficiency and reliability along with adding redundancy at Lock 25. Reference image below for general project layout.
Lock 22 Fish Passage (Ecosystem)
Lock and Dam 22 is one of five fish passage locations on the Mississippi River authorized by the program and the first to be funded for construction. Lock 22 fish passage received $97.1M to fund design and construction of the project.
The project scope includes construction of a 200’-wide rock ramp fishway, an ice/debris barrier, bridge, and stoplogs. When complete, the project will provide the means for fish access to upstream mainstem river and tributary habitats resulting in an increase of size and distribution of native migratory fish populations. Reference the image below for the general project layout.
Lock 22 Fish Passage Project