Arnold, CA…Road Closure Arnold Byway, Arnold 9/8/22 – 7:00 a.m. to 5:00 p.m. Please be advised that there will be a complete road closure at Arnold Byway, Arnold on Thursday, September 8, 2022. There are no designated detour routes, however traffic control personnel will allow local and emergency access as necessary. Please follow instructions provided by on site personnel. If you have any questions regarding this closure please contact PG&E at (707) 317-5173.