MKARNS Nav Notice SWL 21-38 Lock 12 Downstream Land Wall Miter Gate Obstruction

Little Rock District Operations Technical Support Branch
Published Sept. 14, 2021
Navigation Notice

Navigation Notice

Due to an underwater obstruction, the downstream land wall miter gate at Ozark-Jeta Taylor Lock (No. 12) NM 256.8 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. 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) 324-5739 or you may email



Christopher B. Roark

Chief, Operations Division

Little Rock District Operations Technical Services Branch

Release no. 21-098