The failed Demopolis Lock, at the intersection of the Tombigbee Waterway and Black Warrior rivers in Alabama, has reopened two weeks earlier than projected.
The lock reopened on 16 May, ahead of the scheduled 30 May opening.
Vessels carrying commodities such as asphalt, coal, petcoke, metals and fertilizers have been able to pass through the lock without a long queue since the reopening, according to the US Army Corps of Engineers.
The lock had been closed since 16 January when the concrete sill underneath the lock doors failed. The lock was largely rebuilt over the ensuing four months
Traffic that would typically pass through the lock was rerouted during the closure.
Multiple steel mills in Alabama and Mississippi move some of their feedstock and finished product through the Demopolis lock. Those mills have 8.16mn short tons (st)/yr of flat, long, semifinished and pipe steel production capacity.
