An official website of the United States government
Here's how you know
Official websites use .mil
website belongs to an official U.S. Department of Defense organization in the United States.
Secure .mil websites use HTTPS
means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.
Skip to main content (Press Enter).
US Army Corps of Engineers
Little Rock District Website
Who We Are
Business With Us
America the Beautiful Passes
Engineering and Construction
Continuing Authorities Program
Levee Safety Information
Floodplain Management Services and Silver Jackets
Levee System Status
Formerly Used Defense Sites
Channel Reconnaissance Reports
David D Terry MRER Status
Approved Project Review Plans
Prairie Creek, Russellville, Arkansas
Three Rivers Study
Millwood Lake Master Plan Revision
Norfork Lake Master Plan
MKARNS Master Plan Revision
Maumelle River Ecosystem Restoration Study
Nimrod Blue Mountain Master Plan
MKARNS 12-foot Channel
Illinois River Flood Study
Stump Creek Flood Risk Management
Stump Creek FRM Comments
Norfork Lake Master Plan Revision Page
Beaver Lake Land Acquisition
Stair or Step Request Form
Blue Mountain Lake
Bull Shoals Lake
Greers Ferry Lake
Table Rock Lake
Pine Bluff Area
Applying for a Permit
Fayetteville Shale Information
Arkansas Special Resource Waters
Missouri Special Resource Waters
Types of Permits
Water Resources Development Act
What is the Regulatory Program
Requirements/Exemptions for Flood Recovery Activities
About Water Management
Real Time Data (Reservoir)
Real Time Data (Arkansas River Nav. Channel)
Water Management FAQ
Beaver Lake Dam IRRM
Equal Employment Opportunity
Arkansas River Navigation Chart
Contact Little Rock District
USACE Office Locator
MKARNS Nav Notice SWL 22-49 Sailing Instruction NM 179
MKARNS - Mariners are advised that until further notice, both upbound and downbound tows should run the green line in the NM 179 vicinity.
MKARNS Nav Notice SWL 22-48 Lock 1 Closure Update
MKARNS - Norrell Lock (No. 1) NM 10.3 will go to 24-hour operation beginning at 7:01 P.M. on Friday, September 9th, 2022, until 6:59 A.M. on Friday, September 16th, 2022.
MKARNS Nav Notice SWL 22-47 Lockage Queue - Lock 2, Lock 1 & Montgomery Point Lock
MKARNS - Lock 1 operators will establish and distribute a lockage/queue management plan daily for Lock 2, Norrell Lock (No.1) and Montgomery Point Lock.
MKARNS Nav Notice SWL 22-46 Montgomery Point Lock - Open, WREC Draft Restriction Lifted
MKARNS - Mariners are advised that Montgomery Point Lock (NM 0.5) is operable.
MKARNS Nav Notice SWL 22-45 Closure - Montgomery Point Lock & Navigation Pass
MKARNS - Mariners are advised that Montgomery Point Lock and Dam (NM 0.5) is currently closed to all navigation traffic.
MKARNS Nav Notice SWL 22-44 Sailing Instruction & Draft Restriction - Downstream of Lock 1
MKARNS - Mariners are advised that upbound and downbound tows should run the centerline of the navigation channel in the downstream approach to Norrell Lock (No. 1).
MKARNS Nav Notice SWL 22-43 Sailing Instructions Lifted Locks 3 and 5
MKARNS - The sailing instructions for the downstream approach to Joe Hardin Lock (No. 3), noted in Nav Notice SWL 22-26 and the downstream approach to Colonel Charles D. Maynard Lock (No. 5), noted in Nav Notice 22-24 have been lifted.
MKARNS Nav Notice SWL 22-42 WREC Differentials
MKARNS - This 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.
MKARNS Nav Notice No. 22-41 Lock 1 Locking Instructions Update
MKARNS - The landside/long wall coffer boxes are scheduled to be installed downstream and upstream of the miter gate recesses at Norrell Lock (No. 1) NM 10.3, beginning Aug 22.
MKARNS Nav Notice SWL 22-40 Lock 13 Tow Haulage Out of Service
MKARNS - Tow haulage equipment at Trimble Lock (No. 13) NM 292.8 is currently out of service.