A semi rollover wreck near New Castle closed westbound traffic on Interstate 70 Tuesday morning for over four hours.

Colorado State Patrol Trooper Josh Lewis said that a semi pulling double trailers rolled just west of the New Castle exit and blocked the westbound lane.

Traffic was re-routed on U.S. 6.

Emergency responders were paged to the wreck at 6:50 a.m. I-70 was back open shortly after 11:30 a.m.

At about 9:30 a.m. New Castle Police Chief Tony Pagni said crews with heavy machinery were working to clear the road, and he estimated that the westbound lane would be reopened in another hour.

Information about possible injuries was not immediately available.