Lock Restrictions & Closure: Lock and Dam No.22, UMR Mile 301.2

Notice Number: 201531/MR 22-201531
Date: 01/03/2023 06:00 thru 03/02/2023 13:00

Lock 22 will be closed to all navigation from 0700 hours on Friday January 13, 2023 until 1300 hours on Thursday March 2, 2023.

Lock 22 will be under a 70 foot wide width restriction beginning at 0600 on January 3, 2023. This restriction will be in place until the closure of the lock. Mariners need to be aware of various floating plant in the vicinity of the lock.

The upper guidewall will not be available for breaking/making tows. Lines will need to be caught on the I-Wall side of the lock unless approved otherwise by the Lockmaster.

The upper tow haulage unit will not be operable during this time, which will prohibit double lockages upstream utilizing the tow haulage unit equipment. Tows can still transit the lock with a double, as long as they have either a tug assist or industry self-help pulling cuts out of the lock chamber. Tows will have to transit and stage barges above the lock northbound or below the lock southbound to reconfigure tows.

The purpose of the restriction and closure is to replace the travelling kevel rail. All work will be performed by a contractor.

All navigation interest should be alert for, and abide by, any special instructions that may be issued by the Lockmaster. Towboat operators are requested NOT to tie up on the guide walls during these closure periods. Please contact the lock at 573-221-0294 or on channel 14 for assistance.


Robert V. Castro, P.E.
Chief, Lock and Dam Section
Mississippi River Project