RIAC Navigation Notice 206555 Locks 27 Scheduled 12 hour closure 22 May 2024 completed

Locks 27 Main and Auxiliary Locks
Upper Mississippi River mile 185.5

1. Locks 27, the Main and Auxiliary Lock, will be closed on 22 May 2024 for 12 hours from 0630 to 1830 hours for electrical maintenance.

2. All navigation interest should be alert for, and abide by, any special instructions that may be issued by the Lockmaster.


Andrew C. Schimpf, P.E.,
Rivers Project Manager