The Idaho Transportation Department has installed traffic signals allowing single-lane traffic to pass over the Porterville overpass north of Blackfoot. The overpass was damaged Tuesday evening when it was struck by a backhoe being hauled by a semi on Interstate 15. The collision caused severe damage to one of the concrete girders under the overpass.
ITD has determined it is safe to allow traffic to pass over the undamaged portion of the bridge. The traffic lights will alternate, allowing vehicles to use the single open lane.
In addition, concrete barriers will be put in place to ensure traffic does not pass over the damaged girder.
ITD continues to investigate what will be required to repair the bridge.
Motorists are encouraged to check 511.idaho.gov for the latest traffic information and width restrictions.