Transportation Department 22025 Saint Louis Rd Middleburg, VA 20117 Phone : (540) 687-6294 Business Category Port Authorities Virginia Commonwealth Of--transportation Dept Of, Loudoun County, Area Hdqtrs, St Louis Middleburg, VA 20117 Phone : (540) 687-6294 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools