Emergency repairs began over the weekend in Atwater to fix the Applegate Road overcrossing on Highway 99.
The structure was hit by a big rig a little over a week ago and after an inspection by Caltrans, the department determined the overpass was damaged
The fast lane on Highway 99 near Applegate Road will be closed from 6 a.m. until 8 p.m. on Sunday.
The right lane and the on and off ramps will remain open during the emergency construction.
Next Saturday, the northbound lanes of the highway will be fully closed from 9 p.m. until 5 a.m. through November 10th.
There will be directions to a detour at Atwater Boulevard during the time of construction.