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  • 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.

  • 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 rain in Oklahoma and western Arkansas over the last two days has resulted in Arkansas River flows exceeding 70,000 cubic feet per second. A crest of 150,000 to 200,000 c.f.s is forecasted from Van Buren to Ozark and a crest of 250,000 to 300,000 c.f.s is forecasted to progress downstream from Dardanelle to Wilbur D. Mills Dam over the next week.

  • 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.

  • A legacy of service: Mark Eddings' 38-year journey with USACE

    After nearly four decades of dedicated service with the U.S. Army Corps of Engineers, Park Ranger Mark Eddings, is retiring. His career spans a remarkable 38 years, with 19 spent in the Little Rock District. From his early days in Tulsa to his final years in Little Rock, Eddings’ journey has been shaped by his passion for environmental stewardship and a deep connection to the lands he served.

  • 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 24-61 Lock 10 Closure Update

    The partial lock closure for Dardanelle Lock (No. 10) NM 205.5, as stated in Nav Notice SWL 24-56, is currently in effect and scheduled to last until September 30th, 2024, Monday through Saturday each week.

  • MKARNS Nav Notice No. SWL 24-60 Lock 12 Closure

    Mariners are advised that Ozark-Jeta Taylor Lock (No. 12) NM 256.8 will be closed to traffic beginning at 8:00 a.m. until 3:00 p.m. on August 21, 2024. The lock closure is required to facilitate ongoing work on the hydraulic system.

  • MKARNS Nav Notice No. SWL 24-37 Lock 2 Tow Haulage Return to Service

    TOW HAULAGE RETURN TO SERVICE LOCK No. 2 (NM 13.3) MCCLELLAN-KERR ARKANSAS RIVER NAVIGATION SYSTEM