SCHEDULED LOCK CLOSURE Locks 27 Main and Auxiliary Locks Upper Mississippi River mile 185.5

Navigation Notice: 206555
Date: 05/22/2024 11:30 thru 05/22/2024 23:30

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.

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