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  • 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 25-17 Lock 2 Tow Haulage Return to Service

    The tow haulage equipment at Lock No. 2 (NM 13.3) has been repaired and returned to service.

  • USACE issues small craft advisory for Arkansas River

    The U.S. Army Corps of Engineers is issuing a small craft advisory for the McClellan-Kerr Arkansas River Navigation System in Arkansas. Heavy rainfall in eastern Oklahoma and western Arkansas over the last 24 hours has resulted in Arkansas River flows exceeding 70,000 cubic feet per second at Trimble Lock and Dam.

  • MKARNS Nav Notice No. SWL 25-16 Lock 2 Tow Haulage Out of Service

    The tow haulage equipment at Lock No. 2 (NM 13.3) 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.

  • MKARNS Annual Navigation Notice No. 1-2025

    As a result of partnering efforts with navigation stakeholders, the attached consolidated Notice to Navigation Interests has been prepared for the McClellan-Kerr Arkansas River Navigation System (MKARNS). The intent is to provide consistency by reviewing and informing current district regulations with a joint notice that will be updated annually. The notice is applicable to the Little Rock (SWL) and Tulsa (SWT) Districts.

  • MKARNS Nav Notice No. SWL 25-13 Lock 3 Intermittent Delays 

    Mariners should expect to experience intermittent delays at Joe Hardin Lock (No. 3) NM 50.2 on February 27, 2025, between the hours of 6:00 a.m. and 6:00 p.m. The intermittent delays are required to facilitate work on the hydraulic system.

  • MKARNS Nav Notice No. SWL 25-12 Lock 4 Closure

    Mariners are advised that Emmett Sanders (No. 4) NM 66.0 will be closed to traffic beginning at 8:00 a.m. until 4:00 p.m. on February 26, 2025. The lock closure is required to facilitate ongoing work on the hydraulic system.

  • Public Workshop for the Lake Dardanelle Shoreline Management Plan Update cancelled due to inclement weather

    The U.S. Army Corps of Engineers Little Rock District is cancelling the public workshop scheduled for tonight, Feb. 18, due to inclement weather.

  • MKARNS Nav Notice No. SWL 25-11 Lock 9 Tow Haulage Planned Outage

    The tow haulage equipment at Ormond Lock (No. 9) NM 176.9 will be taken out of service beginning February 15, 2025, to facilitate required work on the lock shelters. 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.

  • USACE issues small craft advisory for Arkansas River

    The U.S. Army Corps of Engineers is issuing a small craft advisory for the McClellan-Kerr Arkansas River Navigation System in Arkansas. Heavy rainfall in western Arkansas over the last 48 hours will result in Arkansas River flows exceeding 70,000 cubic feet per second over the next few days from Dardanelle Lock and Dam downstream to Wilbur D. Mills Lock and Dam.