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MKARNS Navigation Notices

Current navigation and sailing notices for the McClellan-Kerr Arkansas River Navigation System

18 Locks & Dams

10 Navigation Pools

445 Miles of Waterway

Mariners: Check notices regularly for current channel conditions, restrictions, and safety information.

For the most up-to-date navigation information, visit the Notices To Navigation Interests (NTNI) website.

Navigation Notices

Archive: October, 2025

21 Oct 2025
MKARNS Nav Notice SWL 25-72 Lock 10 Intermittent Delays
Mariners should expect to experience intermittent delays at Dardanelle Lock (No. 10) NM 205.5 on October 27th, 2025 – October 30th, 2025, between the hours of 6:00 a.m. and 4:30 p.m. The intermittent delays are required to facilitate concrete repairs to the lock walls.