The final crash happened in San Mateo on southbound I-280 and under the Highway 92 overpass, also at around 3 a.m. Two people died as a result, according to CHP. The head-on collision happened on northbound 101, just south of I-280 and Silver Avenue. Further details weren’t immediately available.ĬHP said the third crash happened just before 3 a.m., again in San Francisco. The second was a car crash in Dublin, which happened just after 2:30 a.m. Sign up for NBC Bay Area’s Housing Deconstructed newsletter. Get a weekly recap of the latest San Francisco Bay Area housing news.