MKARNS Nav Notice No. SWL 24-38 Lock 10 Closure Update

Notice Number: 206558/206574_NTN-05_GI_BRF_2024-04
Date: 06/15/2025 12:00 thru 10/01/2025 00:00

The partial lock closure for Dardanelle Lock (No. 10) NM 205.5, as stated in Nav Notice SWL 23-31, is being postponed. The partial lock closure will now take place from June 15th, 2025, through September 30th, 2025. During this time, the Lock will be closed daily between the hours of 7:00 a.m. and 7:00 p.m. The Lock will be opened to traffic each night between the hours of 7:00 p.m. and 7:00 a.m., however a 70-ft width restriction will be in place.

This scheduled lock closure is to allow construction crews to install temporary cofferboxes on the lock walls to facilitate concrete saw-cutting of the lock walls and other work related to the new 110-ft stoplog slots near the upstream and downstream miter gates.

Questions or requests for additional information concerning this notice should be directed to the Little Rock District Office, at (501) 324-5096 or you may email