Notice to Navigation Interests 206897-1 – T.J. O’Brien Lock & Dam Closure

Notice Number: 206897-1
Date: 05/14/2024 12:00 thru 05/14/2024 17:00

1. The T.J. O'Brien Lock and Dam, River Mile 326, will be closed to all vessel traffic from 0700 to 1200 CDT on Tuesday, May 14th, 2024. The purpose of the closure is to make repairs to the sector gate operating machinery. Mariners are requested to not moor on the guidewalls during this time.

2. In the event the repairs are completed prior to the scheduled completion time, an amendment to this Notice to Navigation Interests will be posted.

3. The following link provides access to all USACE Notices to Navigation Interests: (

4. If you have any questions/comments/concerns regarding this Notice to Navigation Interests, please contact Michael Walsh, USACE Chicago District Waterway Project Office Chief, (815) 510-0361 or at


MacDonald, Jeffrey A, Chief, Technical Support Branch