Two lanes of eastbound Interstate 635 west of Forest Lane remain closed to traffic Wednesday after a truck overturned and spilled a load of pallets or crates onto the roadway.
Dallas police said they were called to the scene at about 10:40 a.m.
By noon, crews were still working to clear the scene and right the trailer.
Eastbound traffic has been allowed to pass in the HOV lane and in an outside lane.