ROY -- All lanes on northbound Interstate 15 are open, after a diesel spill Wednesday morning.

The diesel spill, caused after a tanker truck rolled at the 5600 South exit in Roy around 4:15 a.m., has shut down the highway to all northbound traffic since the crash. The fuel damaged the asphalt roadway in the left and center lanes. UDOT crews are working to repave those lanes and are hoping to have the number two lane open by 4 p.m., said UDOT Region One Spokesman Vic Saunders.