HASTINGS, Minn. – The Army Corps of Engineers awarded a $2.5 million contract to Dubuque Barge and Fleeting Service to repair the guidewall at Lock and Dam 2 on the Mississippi River near Hastings. The project will be over the winter and not affects shipping or boating, the Corps said. The guidewall was damaged in a tow barge collision in October 2023. The barges were tying up on the guidewall to wait to pass through the lock.