Advisory
UPDATE:
N California Blvd has been reopened.
UPDATE:
N California Blvd has been reopened. 
UPDATE:
N California Blvd has been reopened.
AVOID N Calif Blvd at Ygnacio Valley Rd for the next 1-2 hours due to traffic collision. The Northbound lanes of N Calif Blvd are closed from Ygnacio to Pringle until further notice.
Address/Location
Walnut Creek Police Department
1666 N Main St
Walnut Creek, CA 94596
Contact
Emergency: 9-1-1
Non-emergencies: 925-943-5844