Idaho Highway Department Maintenance 4181 Hwy 40 Downey, ID 83234 Phone : (208) 897-5379 Business Category Highway & street construction Road Maintenance Idaho State Government--highways Dept-maintenance Downey Downey, ID 83234 Phone : (208) 897-5379 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Idaho State Of--highways Dept, Maintenance Downey, ID 83234 Phone : (208) 897-5379 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools