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Navigation Notices

Points of Contact

Navigation & Maintenance
(501) 324-5739

Reservoir Control
(501) 324-6237 

Pine Bluff Project Office
(870) 534-0451

Russellville Project Office
(479) 968-5008

Montgomery Pt L&D 
(870) 548-3400

Norrell Lock
(870) 548-2796

Lock No. 2
(870) 548-2791

Joe Hardin Lock
(870) 479-3164

Emmett Sanders Lock
(870) 534-2127

Col Charles D. Maynard Lock
(501) 842-2761

David D. Terry Lock
(501) 961-9281

Murray Lock
(501) 663-1997

Toad Suck Ferry Lock
(501) 327-0853

Arthur V. Ormond Lock
(501) 354-8402

Dardanelle Lock
(479) 890-4987

Ozark-Jeta Taylor Lock
(479) 667-2120

James W. Trimble Lock
(479) 452-0488

Navigation Notices

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Archive: 2025
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  • MKARNS Nav Notice No. SWL 25-05 Lock 13 Tow Haulage Out of Service

    The tow haulage equipment at James W. Trimble (No. 13) NM 292.8 is currently out of service. Double cut tows will have to be locked the conventional way (without the use of tow haulage). A follow up notice will be distributed when the tow haulage equipment is back in service.

  • MKARNS Nav Notice No. SWL 25-03 Lock 7 Reopened

    Repairs to the hydraulic piping at Murray Lock and Dam (No. 7) NM 125.4 have been completed. The lock is currently open to traffic.

  • MKARNS Nav Notice No. SWL 25-02 Lock 7 Closure

    Due to an unexpected hydraulic piping failure, Murray Lock and Dam (No. 7) NM 125.4 is currently closed to navigation until further notice. Crews are onsite making emergency repairs at this time. A follow up notice will be distributed as soon as the Lock is reopened to navigation.

river vessel with barges in tow on river

2023 MKARNS Waterway Action Plan
(pdf reader required)

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