NOLAN COUNTY, Texas -

The state transportation department will be closing both westbound lanes of Interstate 20 at U.S. 84 in Nolan County on Thursday for ongoing work to replace the bridge damaged when it was struck by a truck in September 2012.

Westbound I-20 will be closed all day as crews place beams on the new structure.  

Traffic will be detoured to U.S. 84 business and routed around the overpass.  Signs, cones and message boards will be in place to direct drivers.

All interstate lanes are expected to be open by Friday.