Transportation Department 12190 Us Highway 87 Dalhart, TX 79022 Phone : (806) 249-5333 Business Category Port Authorities Texas State Of--texas Department Of Transportation, Permit Ofc Highway 87 N Dalhart, TX 79022 Phone : (806) 249-5333 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Texas State Of--dalhart, Texas Dept Of Transportation, Permit Ofc Dalhart, TX 79022 Phone : (806) 249-5333 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools