RUSSELLVILLE, Ark. – The U.S. Army Corps of Engineers, Little Rock District, has completed emergency repairs at Dardanelle Lock and Dam, restoring navigation on the McClellan-Kerr Arkansas River Navigation System as of 9:09 a.m. Dec. 3, 2025.

The lock was closed following a Nov. 21 allision when a downbound barge struck the upstream miter gate. Inspections revealed significant structural damage above and below the waterline, requiring immediate closure to ensure safety and reliability.

Crews mobilized quickly and began lowering the Dardanelle pool to elevation 336 feet on Nov. 26 to facilitate underwater repairs. Working through cold, rainy conditions and sacrificing holiday leave, engineers and maintenance teams completed Phase I repairs above the waterline, then advanced to Phase II by addressing submerged structural members.

“Today’s reopening of Dardanelle Lock is a testament to the dedication and sacrifice of our crews and engineers,” said Col. Patrick Caukin, commander of the Little Rock District. “Many team members returned early from holiday leave and even left deer camps to get this work done. Their commitment reflects the professionalism and resilience expected of America’s engineers, and I could not be prouder of their efforts.”

The MKARNS is a vital corridor for regional commerce and national supply chains, moving more than 12 million tons of commodities annually. Ports along the system serve an 18?state region stretching as far west as California and as far north as Montana, underscoring the waterway’s role in connecting America’s heartland to national and global markets.

Throughout the closure, USACE coordinated closely with navigation stakeholders, issuing notices and conducting industry calls to maintain a shared operating picture. With navigation now restored, USACE remains committed to ensuring the long-term reliability and performance of the MKARNS for the communities and industries that depend on it.

More information can be found online at www.swl.usace.army.mil, on Facebook at facebook.com/littlerockusace and through the USACE Little Rock Water Level mobile app at www.swl.usace.army.mil/Home/water-control-app.