28 Nov 2025

USACE begins Dardanelle Lock repairs following barge accident

RUSSELLVILLE, Ark. – The U.S. Army Corps of Engineers, Little Rock District is lowering the Dardanelle pool on the McClellan-Kerr Arkansas River Navigation System to elevation 336 feet beginning Nov. 26, 2025, to facilitate repair work to a miter gate at Dardanelle Lock and Dam. It will take roughly two days to lower the pool from its current elevation of 337.8 to 336.

23 Nov 2025

MKARNS Nav Notice SWL 25-75 MPLD Special Sailing Instructions - Width Restrictions

The downstream river wall miter gate at Mongomery Point Lock (No. 99) NM 0.5, is failing to recess due to an obstruction behind the gate.

22 Nov 2025

MKARNS Nav Notice SWL 25-74 Lock 10 Unscheduled Lock Closure

Due to an allision with the upstream miter gates, Dardanelle Lock (No. 10) NM 205.5 is currently closed to traffic. Engineers are onsite assessing the damage.

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.

27 Oct 2025

USACE to begin intermittent spillway releases at Table Rock Dam

The U.S. Army Corps of Engineers will begin intermittent spillway releases from Table Rock Dam Oct. 27, 2025, to support ongoing powerplant maintenance.

24 Oct 2025

Single lane closure scheduled for Highway 187 across Beaver Dam

ROGERS, Ark. – The U.S. Army Corps of Engineers will be closing one lane of the Highway 187 bridge across Beaver Dam from 9 a.m. until 1 p.m. Nov. 13, 2025, for a routine bridge inspection.

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.

6 Oct 2025

USACE to temporarily close Dam Quarry Campground

The U.S. Army Corps of Engineers will temporarily close Dam Quarry Campground and the tailwater boat ramp on Norfork Lake Oct. 7 through Oct. 19, 2025, for park improvements. Work includes paving and major road improvements.

30 Sep 2025

MKARNS Nav Notice SWL 25-71 UPDATED Lock 10 Closure Notice

Mariners are advised that the partial lock closure at Dardanelle Lock (No. 10) NM 205.5 has been extended through October 24th, 2025.

25 Sep 2025

MKARNS Nav Notice SWL 20-70 UPDATED Lock 13 Closure Notice

Update to navigation notice SWL 25-68. Mariners are advised that the partial lock closure at James W. Trimble Lock (No. 13) NM 292.8 has been extended through October 25th, 2025.