Transportation Department 10157 Ga Highway 116 Hamilton, GA 31811 Phone : (706) 628-4011 Business Category Port Authorities Harris County--dept. Of Transportation Hamilton, GA 31811 Phone : (706) 628-4011 Business Category Government Offices-County Government Offices & Public Schools Georgia State Government--department Of Transportation-harris County R/m Head Shiloh Rd Hamilton, GA 31811 Phone : (706) 628-4011 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools