TDOT Crews In East Tennessee Have Been Hard At Work Clearing Interstates And State Routes During The Recent Winter Weather. Between January 8 And January 12, Crews Used Over 268,000 Gallons Of Brine, 55,000 Gallons Of Calcium Chloride, And 17,000 Tons Of Salt Across The Region’s 24 Counties. TDOT Continues To Monitor Conditions And Maintain Road Safety.