Highway Commission--iowa State Of Sheldon, IA 51201 Phone : (712) 324-3631 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Highway Maintenance Garage 1214 2nd Ave Sheldon, IA 51201 Phone : (712) 324-3631 Business Category Government Offices-State Highway & street construction Road Maintenance Transportation Services Local Passenger Transportation Government Offices State & Local Government Offices & Public Schools