MKARNS Nav Notice SWL 22-51 Lock 13 Downstream Miter Gate Obstructed

Little Rock District Operations Technical Services Branch
Published Sept. 20, 2022
Navigation Notice

Navigation Notice

Due to an underwater obstruction, the downstream land wall miter gate at Trimble Lock (No. 13) NM 292.8 is unable to properly recess. Upbound tows are advised to stop prior to entering the lock and await the Operator’s command to enter.  Mariners are to favor the river wall. Tows should be configured such that their width is not greater than 105-ft. Maintenance staff is currently assessing the situation. An ensuing Navigation Notice will be sent out once the issue has been resolved.

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 Services Branch

Release no. 22-096