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  • USACE works to fix stuck gate at Dardanelle Lock and Dam

    Teams with the U.S. Army Corps of Engineers are working to repair a stuck spillway gate at Dardanelle Lock and Dam on the Arkansas River.

  • MKARNS Nav Notice 25-59 Lock 10 Unscheduled Closure

    Dardanelle Lock (No. 10) NM 205.5 is currently closed to traffic due to dangerous cross currents downstream of the dam. The spillway release configuration is currently restricted due to mechanical issues resulting in concentrated flows that present a danger to traffic in the downstream approach. Crews are onsite and an additional notice will be submitted when the issue is resolved.

  • MKARNS Nav Notice 25-57 Caution Advisory - HWY 64 Bridge NM 300.4

    Mariners are advised that a hydrodemolition project is scheduled over the navigation span of the HWY 64 Bridge, NM 300.4, from 7 p.m. on August 16, 2025 to 7 a.m. on August 17, 2025. During this time mariners should contact the onsite workboat at VHF Channel 16 or 68, or by phone at (479) 629-2996 prior to arrival to coordinate a work stoppage to allow for safe passage under the bridge.

  • MKARNS Nav Notice No. 25-56 Lock 4 Tow Haulage Out of Service

    The tow haulage equipment at Emmett Sanders (No. 04) NM 66.0 is currently out of service due to ongoing work. 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. 25-55 Sailing Instruction Lock 8 Downstream Approach

    Due to shoaling, mariners are advised that until further notice, both upbound and downbound tows should favor the long wall in the downstream approach to Toad Suck Lock (No. 8) NM 155.9.

  • MKARNS Nav Notice No. SWL 25-54 Lock 10 and Lock 13 Special Locking Instructions

    Mariners are advised of special locking instructions due to ongoing construction and limited lock availability at Dardanelle Lock (No. 10) NM 205.5 and James W. Trimble Lock (No. 13) NM 292.8.

  • MKARNS Nav Notice No. 25-53 Lock Crew Changes

    Towboats requesting to make crew changes or to have goods or services delivered at Little Rock District navigation locks (Montgomery Point Lock and Dam, L&D’s 1-13) on the McClellan-Kerr Arkansas River Navigation System are asked to comply with the procedures listed below, as detailed in the MKARNS Annual Navigation Notice #1, Appendix D:

  • 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.

  • MKARNS Nav Notice No. SWL 25-50 Dardanelle Hinged Pool Operation

    To promote beneficial scouring of shoals in the Dardanelle Pool following recent sustained high-water flows, the U.S. Army Corps of Engineers, Little Rock District, will conduct a “Hinged Pool” operation from Thursday, July 10th, 2025, through Wednesday, July 17th, 2025.

  • MKARNS Nav Notice No. SWL 25-44 Lock 5 Tow Haulage Out of Service

    The tow haulage equipment at Colonel Charles D. Maynard Lock (No. 5) NM 86.3 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.