[IN THE SACRAMENTO VALLEY & THE LAKE TAHOE BASIN] IS CLOSED TO EASTBOUND TRAFFIC AT MATHER FIELD RD /IN RANCHO CORDOVA/ (SACRAMENTO CO) - DUE TO A JACKKNIFED BIG RIG - MOTORISTS ARE ADVISED TO USE AN ALTERNATE ROUTE IS REOPENED TO WESTBOUND TRAFFIC & REDUCED TO 3 LANES AT MATHER FIELD RD /IN RANCHO CORDOVA/ (SACRAMENTO CO) AT 2221 HRS ON 2/1/19 - DUE TO A JACKKNIFED BIG RIG