MKARNS Nav Notice SWL 22-67 Lock 1 Closure Update

Little Rock District Operations Technical Support Branch
Published Dec. 1, 2022
Navigation Notice

Navigation Notice

The current work schedule for the Lock 1 stoplog slots project has been revised as shown below.  The 70’ width restriction is expected to be lifted on December 7.  If the scheduled dates change, an updated navigation notice will be issued.  An additional full lock closure will take place at the end of the project in order for the new closure system to be tested; the specific dates will be provided in a subsequent navigation notice.

Lock 1 schedule:
Dec 1 – Jan 20: Full Closure, 7 a.m. – 7 p.m. daily
                          Lock Open: 7:01 p.m. – 6:59 a.m. nightly (70’ width restriction – until Dec 7)

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

Christopher B. Roark
Chief, Operations Division

Little Rock District Operations Technical Support Branch

Release no. 22-129