Highway 99W just south of Red Bluff was closed down while firefighters battled a fire Monday. It started at around 2:20PM at Sunbright Avenue between the Sierra Pacific Mill and the Walmart Distribution Center. Apparently the smoke was so bad, the mill workers were told to go home. The incident apparently started as a house fire which became fully involved and spread to vegetation, then started another house on fire, and it became fully involved as well. The vegetation fire was stopped at around one acres, but both houses burned to the ground. Highway 99W reopened at around 3 O’clock.