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  • MKARNS Nav Notice SWL 26-31 Channel Obstruction Cleared NM 119

    The river obstruction at NM 119 (between Broadway and Main Street Bridges) has been removed. The area is clear for all transit. Ref: Navigation Notice SWL 26-30.

  • MKARNS Nav Notice SWL 26-30 Caution Advisory NM 119

    Mariners are advised that there is an obstruction in the river near the left descending side of the navigation channel at NM 119, between the Broadway and Main Street Bridges. The obstruction appears to be a derelict wooden pile protruding just above the waterline. Crews are mobilizing to investigate the obstruction and will attempt to remove it tomorrow, August 20, 2026.

  • MKARNS Nav Notice SWL 26-29 Lock 10 Early Closure

    Mariners are advised that due to a critical construction activity related to the 110 ft. stoplog conversions, the daytime closure at Dardanelle Lock (No. 10) NM 205.5 will begin at 3:00 a.m. on Thursday August 20th, 2026, and end at 3:00 p.m. on Thursday August 20th, 2026. To offset the early closure start, the lock will open early to traffic at 4:00 p.m. on Wednesday August 19th, 2026.

  • USACE commemorates completion of Three Rivers Project with ribbon cutting

    The U.S. Army Corps of Engineers Little Rock District commemorated the completion of the Three Rivers Project during a ribbon cutting ceremony Aug. 12, 2026, celebrating a nationally significant infrastructure project that protects the long-term reliability of the McClellan-Kerr Arkansas River Navigation System.

  • MKARNS Nav Notice SWL 26-27 Lock 13 Early Closure

    Mariners are advised that due to a critical construction activity related to the 110 ft. stoplog conversions, the daytime closure at James W. Trimble Lock (No. 13) NM 292.8 will begin at 5:00 a.m. on Monday August 3rd, 2026, and Friday August 7th, 2026.

  • MKARNS Nav Notice SWL 26-26 Lock 1 Repair Closure

    Mariners are advised that Norrell Lock (No. 1) NM 10.3 will be closed to traffic beginning at 6:00 a.m. until 2:00 p.m. on July 29th, 2026. The lock closure is required to facilitate concrete repair of the lock parapet wall.

  • MKARNS Nav Not 26-25 Lock 13 Early Closure

    Mariners are advised that due to a critical construction activity related to the 110 ft. stoplog conversions, the daytime closure at James A. Trimble Lock (No. 13) NM 292.8 will begin at 5:00 a.m. on Wednesday July 29th, 2026.

  • MKARNS Nav Notice 26-24 Multiple Location Locking Instructions

    SPECIAL LOCKING INSTRUCTIONS MULTIPLE LOCATONS MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM Due to ongoing construction at the following locations on the McClellan-Kerr Arkansas River Navigation System •Murry Lock (No.7) NM 125.4 •Toad Suck Ferry Lock (No. 8) NM 155.9 •Arthur V. Ormond Lock (No. 9) NM 176.9 •Dardanelle Lock (No. 10) NM 205.5 •Ozark Jetta-Taylor Lock (No. 12) NM 256.9 •James W. Trimble Lock (No. 13) NM 292.8

  • USACE lifts small craft advisory for Arkansas River

    The U.S. Army Corps of Engineers is lifting the small craft advisory for the Arkansas River. Small craft advisories are issued when flows reach 70,000 cubic feet per second.

  • Russellville Marina docks temporarily closed as of July 8, 2026

    The U.S. Army Corps of Engineers Little Rock District is temporarily closing the docks at Russellville Marina, effective July 8, 2026, due to safety hazards and unmet terms of the facility's Commercial Concessions Lease Agreement. The repair shop, store and cabins, will remain open.