[IN THE NORTHERN CALIFORNIA AREA] TRAFFIC IS BEING HELD FROM TWIN BRIDGES TO MEYERS (EL DORADO CO) AT 0350 HRS ON 1/23/17 - DUE TO SNOW PLEASE RESEARCH CHAIN CONTROL LOCATIONS AS CALTRANS IS CURRENTLY WORKING TO UPDATE CHAIN CONTROL DESCRIPTIONS FOR CONSISTENCY WITH INTERNET MAPPING, LIKE GOOGLE MAPS & MAPQUEST.