map of san francisco area

NBC Bay Area on MSN: I-80 closure in San Francisco: What to know, timeline and detour maps I-80 closure in San Francisco: What to know, timeline and detour maps A portion of Interstate 80 in San Francisco will shut down for an estimated 55 hours starting April 17 while Caltrans continues work on a rehabilitation project to improve safety on the freeway. KQED: I-80 Closure: What to Know About Travel Through San Francisco This Weekend I-80 Closure: What to Know About Travel Through San Francisco This Weekend