(NDAgConnection.com) – Shipping travel along the Mississippi River has been disrupted as water levels nearing record lows cause barges to get stuck in mud and sand, likely creating another snag for the supply chain.

The U.S. Coast Guard said last week that at least eight barge groundings have been reported within the past week.

One of the groundings happened Friday between Louisiana and Mississippi, near Lake Providence, Louisiana. It halted river traffic in both directions for days, forcing dozens of barges to line up and wait to pass by.

The U.S. Army Corps of Engineers has dredged the Mississippi at several spots to keep river traffic flowing in some areas from Missouri south through Louisiana. Low-water restrictions were also placed on barge loads, slowing down transport.