Closures on Westbound I-80 Caltrans is notifying motorists of multiple closures happening on westbound I-80 for corridor improvements. Work will begin with a 79-hour closure starting the weekend of October 24, followed by a 55-hour closure on October 31. Motorists are advised to use I-5 or Highway 99 as alternate routes. For more information, visit bit.ly/Yolo80Project. IPL0280865 Oct 17 2025