Maryland Department of Transportation

MDOT Contacts 

If you have any comments, suggestions or concerns, we encourage you to contact:

Customer Service
410-865-1000

Or in writing:

Maryland Department of Transportation
7201 Corporate Center Drive
Hanover, MD 21076

For more information regarding the MBE/DBE Program, please call:

Office of Minority Business Enterprise
410-865-1269 or
1-800-544-6056

For issues related to business solutions, such as payment of overdue invoices for work done by government contractors, evaluating penalties and fines, resolution of the application of rules and clarification of regulatory requirements, and review of permit processing issues, please contact:

Office of the Business Ombudsman

For issues related to transportation projects developed by the private sector, please contact:

Office of Public-Private Partnerships
Jaclyn Hartman: jhartman1@mdot.maryland.gov

MDOT Departments

If you are concerned about issues of departmental nature, you can contact us at any of the following phone numbers:

Maryland Department of Transportation
In-State 410-865-1000
Maryland Relay TTY 1-800-735-2258

Secretary Paul J. Wiedefeld
410-865-1000

Deputy Secretary
Samantha Biddle
410-865-1000

Assistant Attorney General & Principal Counsel to the Department
Cheryl Brown-Whitfield
410-865-1109

Chief Financial Officer, Office of Finance
Jaclyn Hartman
410-865-1035

Chief Information Officer, Office of Transportation Technology Services
410-865-1040

Director, Office of Public Affairs
Erin Henson
410-865-1025

Director, Office of Audits
410-865-1165

Chief Procurement Officer, Office of Procurement & Project Quality Assurance
Valerie Radomsky
410-865-1121

Director, Office of Environment
410-865-1311

Director, Office of Fleet, Facilities and Administrative Services
David M. Seman
410-865-1148

Director, Office of Diversity and Equity
Tracie Watkins Rhodes, J.D.
410-865-1120

Director, Office of Human Resources
410-865-1186

Director, Office of Minority Business Enterprise
410-865-1240

Director, Office of Planning and Capital Programming
Heather Murphy
410-865-1275

Director, Office of Government Affairs
Pilar Helm
410-865-1102

Deputy Director, Bicycle and Pedestrian Access
410-865-1294

Director, Office of Real Estate and Economic Development
410-865-1235

Director, Homeland Security, Emergency Management and Rail Safety
Chris Holland
410-865-1161

MDOT Business Units

If you are concerned about matters related to:

  • aviation or airport activity and/or issues;
  • port activity and/or issues;
  • mass transit activity and/or issues;
  • motor vehicle activity and/or issues;
  • state highway activity and/or issues,

you can contact us at the following email addresses:

The Maryland Transportation Authority (MDTA) is an independent agency responsible for the maintenance of toll bridges, roads and related facilities. Any questions on any of these matters should be addressed to mdta@mdtransportationauthority.com.