25 Mar 2025

MKARNS Nav Notice No. SWL 25-21 Lock 9 DS Appr- Sailing Instruction Lifted

The sailing instructions for both upbound and downbound tows to favor the long wall in the downstream approach to Arthur V. Ormond Lock (No. 9) NM 176.9, noted in Nav Notice SWL 24-19, have been lifted.

25 Mar 2025

MKARNS NAVIGATION NOTICE Number SWL 25-20

The tow haulage equipment at James W. Trimble (No. 13) NM 292.8 has been repaired and returned to service.

10 Mar 2025

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.

5 Mar 2025

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.

5 Mar 2025

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.

5 Mar 2025

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.

4 Mar 2025

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.

26 Feb 2025

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.

18 Feb 2025

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.

18 Feb 2025

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.