PUBLIC WEBSITE: Notices to Navigational Interests (NTNI) https://ndc.ops.usace.army.mil/ords/f?p=107:1
NAVIGATION NOTICE Number SWL 26-21
McClellan-Kerr Arkansas River Navigation System
June 13th, 2026
In Reply Refer to: CESWL-OP
P. O. Box 867
Little Rock, AR 72203-0867
PH. 501-324-5096
NOTICE TO NAVIGATION INTERESTS
LOCKAGE CUTOFF TIMES FOR DIFFERENT TOW CONFIGURATIONS DURING 110-FT STOPLOG CONVERSION CONSTRUCTION PERIODS
Mariners are advised that starting June 15th, 2026, and continuing until this Navigation Notice is rescinded, the following lockage cutoff times with corresponding tow configurations will be in place at Murray Lock (No. 7) NM 125.0, Toad Suck Lock (No. 8) NM 155.9, Arthur V. Ormond Lock (No. 9) NM 176.9, Dardanelle Lock (No. 10) NM 205.5, Ozark - Jeta Taylor Lock (No. 12) NM 256.8, and James W. Trimble Lock (No. 13) NM 292.8.
Configuration Cut-off Time
Straight Lockage 0600
Straight Lockage (with boat set in notch) 0530
Double Lockage 0100
Triple Lockage 2300
Quadruple Lockage 2100
Pleasure Craft (Powered) 0630
Pleasure Craft (Non-Powered) 0600
Government Vessel 0630
This table clarifies the designated times that each corresponding tow configuration must be at a facility in order to lock through the facility during the same evening. If a tow configuration is not at a facility by the corresponding time listed in the table above, it will not be allowed to lock through until the following evening.
Vessels that can be at a facility by the time that corresponds with their configuration listed in the table above could be allowed to pass other vessels in the queue who cannot meet their cutoff times. All other rules for vessel precedence will apply.
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 CESWL-OP-OM@usace.army.mil.
//signed// (for)
Chief, Operations Division
Release no. 26-073