3 Feb 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.

3 Feb 2025

MKARNS Nav Notice No. SWL 25-10 Lock 10 Intermittent Delays

Mariners should expect to experience intermittent delays at Dardanelle Lock (No. 10) NM 205.5 on February 6, 2025 between the hours of 7:00 a.m. and 5:30 p.m. daily. The intermittent delays are required to facilitate an underwater ROV inspection of the upstream river wall.

3 Feb 2025

MKARNS Nav Notice No. SWL 25-09 Lock 3 Closure

Mariners are advised that Joe Hardin Lock (No. 3) NM 50.2 will be closed to traffic beginning at 7:00 a.m. until 4:00 p.m. on February 12, 2025. The lock closure is required to facilitate ongoing work on the hydraulic system.

30 Jan 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 western Arkansas over the last 24 hours will result in Arkansas River flows exceeding 70,000 cubic feet per second over the next few days.

28 Jan 2025

MKARNS Nav Notice No. SWL 25-08 Lock 4 Tow Haulage Return to Service

The tow haulage equipment at Emmett Sanders (No. 4) NM 66.0 has been repaired and returned to service.

17 Jan 2025

MKARNS Nav Notice No. SWL 25-06 Lock 9 Tow Haulage Return to Service

The tow haulage equipment at Ormond Lock (No. 9) NM 176.9 has been repaired and returned to service.

15 Jan 2025

MKARNS Nav Notice No. SWL 25-05 Lock 13 Tow Haulage Out of Service

The tow haulage equipment at James W. Trimble (No. 13) NM 292.8 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.

14 Jan 2025

MKARNS Nav Notice No. SWL 25-04 WREC Differentials

his is to advise mariners transiting the White River Entrance Channel (WREC) of increased head differentials between Norrell Lock and Dam and Montgomery Point Lock and Dam. 

8 Jan 2025

MKARNS Nav Notice No. SWL 25-03 Lock 7 Reopened

Repairs to the hydraulic piping at Murray Lock and Dam (No. 7) NM 125.4 have been completed. The lock is currently open to traffic.

7 Jan 2025

MKARNS Nav Notice No. SWL 25-02 Lock 7 Closure

Due to an unexpected hydraulic piping failure, Murray Lock and Dam (No. 7) NM 125.4 is currently closed to navigation until further notice. Crews are onsite making emergency repairs at this time. A follow up notice will be distributed as soon as the Lock is reopened to navigation.