All Lanes Closed on Northbound US-101 Past Ralston Ave in San Mateo County Due to a Gravel Spill.
On Saturday, January 31st, at 2:33pm, a severe traffic alert is in effect on Northbound US-101 past Ralston Ave in San Mateo County. All lanes are closed due to a gravel spill. Motorists are advised to expect delays and to use alternate routes. There is no estimated time of opening the roadway.