If your travel plans include motoring along on Interstate 75 in Bradley and McMinn Counties this Sunday, be warned: the Tennessee Department of Transportation and Tennessee Highway Patrol will be testing the fog zone in both directions.

The testing "scenarios" will be conducted between 8:00am and 10:00am EDT. The fog zone area is on I-75, from mile marker 27 in Bradley County to mile marker 44 in McMinn County.

TDOT and THP may implement closures of interstate on-ramps throughout the fog zone area to perform fog zone scenario testing activities on dynamic message signs, changeable speed limit signs, swing gates and fog detection systems.

Crews will work along I-75 in both directions at the on-ramps at exits 27, 33, 36 and 42.

This work is weather dependent. Should weather or unforeseen circumstances delay the testing, it will be rescheduled.