16 Jan 2024

MKARNS Nav Notice No. SWL 24-07 USCG Advisory Van Buren Railroad Bridge NM 300.8

Mariners are advised that crews will be conducting rehabilitation work on the Van Buren Railroad Drawbridge (NM 300.8). The work is expected to start on February 7, 2024 and will last approximately 18 days.

11 Jan 2024

MKARNS Nav Notice No. SWL 24-06 MPLD Nav Pass Open

10 Jan 2024

MKARNS Nav Notice No. SWL 24-05 MPLD Nav Pass Closed

PUBLIC WEBSITE:  Notices to Navigational Interests

10 Jan 2024

MKARNS Nav Notice No. SWL 24-04 Lock 6 Intermittent Delays

Mariners should expect to experience intermittent delays at David D. Terry Lock (No. 6) NM 108.1 beginning February 5 through February 8, 2024, between the hours of 7:00 a.m. and 5:30 p.m. daily. The intermittent delays are required to facilitate underwater dive operations near the Lock chamber.

10 Jan 2024

MKARNS Nav Notice No. SWL 24-03 MPLD Nav Pass Open

Due to increased river elevations, the crest gate dam at Montgomery Point Lock and Dam (NM 0.5) is lowered and the navigation pass is open.   When the Montgomery Point Lock and Dam tailwater elevation drops below 115 ft., the navigation pass will be closed.

5 Jan 2024

MKARNS Nav Notice No. SWL 24-02 Lock 2 Closure

Lock No. 2 (NM 13.3) will be closed to traffic beginning at 7 a.m. on February 5, 2024, until 7 p.m. on February 9, 2024. This is to allow workers to upgrade the lock interlock system which is an integral safety function of the Lock.

5 Jan 2024

MKARNS Annual Navigation Notice No. 1-2024

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.

8 Dec 2023

MKARNS Nav Notice No. SWL 23-73 Caution Advisory Van Buren Railroad Bridge NM 300.8

Mariners are advised that crews will be making electrical and mechanical rehabilitation to the Van Buren Railroad Bridge (NM 300.8). Work will be performed daily from 6 a.m. to 6 p.m., beginning on 15 December.

3 Nov 2023

MKARNS Nav Notice No. SWL 23-69 UPDATE #3: White River Entrance Channel

Dredging operations downstream of the Montgomery Point Lock & Dam (NM 0.5) to the Mississippi River have been completed. Channel depths have been restored and normal locking procedures have commenced.

1 Nov 2023

MKARNS Nav Notice No. SWL 23-70 MPLD Unscheduled Closure

Montgomery Point Lock and Dam (NM 0.5) will be closed to traffic for 24 hours from 12:00 p.m. on November 1, 2023 to 12:00 p.m. on November 2, 2023. The closure will allow workers to make repairs to the downstream land wall miter gate cylinder.