UPDATE: The intersection of Foothill @ Arastradero has been re-opened. 
Update: Foothill Expressway @ Arastradero is now open. This location ended up being the Santa Clara County Sheriff's jurisdiction.
(Original Message) We are currently investigating an accident on Foothill Expwy @ Arastradero. Both lanes are shutdown in the direction of Los Altos. Expect this road closure for the next several hours while we investigate. Foothill traveling towards Palo Alto is open both lanes. Palo Alto Police is assisting with this closure. We appreciate your patience during this time.
Address/Location
Los Altos Police Department
1 N San Antonio Rd
Los Altos, CA 94022
Contact
Emergency: 9-1-1
Non-emergencies: 650-947-2770