From the West (Dayton area) From I-75 north take the I-70 East exit (exit number 61A), towards COLUMBUS. Merge onto I-70 East. Take the I-270 North exit, (exit number 93B), towards CLEVELAND. Merge onto SAWMILL ROAD. Turn LEFT onto WEST DUBLIN-GRANVILLE ROAD (Ohio 161). Turn south on Brookdown Road. Ohio EMA is the second driveway on the right.