/ / /

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: November, 2025

3 Nov 2025
MKARNS Nav Notice SWL 25-73 Sailing Instructions Lifted
The sailing instructions for NM 86.3, noted in Nav Notice SWL 25-31, NM 155.9 noted in Nav Notice 25-55 and NM 221.2 – 221.7 noted in Nav Notice SWL 25-46 have been lifted.