The 18th Annual St. Patrick’s Day parade is today! The event is free and the parade starts promptly at 1:00 p.m. from 2nd & L Streets in Old Sacramento and proceeds throughout the national historic landmark. All Old Sacramento streets will be closed to traffic from noon to 3:00 p.m., as thousands are expected to line the streets. Last year more than 15,000 people turned out to enjoy the festivities.