Firefighter crews work on the scene Wednesday of a semitrailer blaze on Interstate 5 near the Oak Knoll subdivision in Ashland. [Photo Courtesy of Haywood Norton] - Jamie Lusch

Firefighter crews work on the scene Wednesday of a semitrailer blaze on Interstate 5 near the Oak Knoll subdivision in Ashland. [Photo Courtesy of Haywood Norton] - Jamie Lusch