Maryland Department of Transportation
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| Agency overview | |
|---|---|
| Formed | July 1, 1971 | 
| Jurisdiction | State of Maryland | 
| Headquarters | 7201 Corporate Center Drive Hanover, Maryland, U.S. | 
| Employees | 11,000 (FY 2021)[1] | 
| Annual budget | $5.5 billion annual budget (FY 2021)[1] | 
| Agency executives | 
  | 
| Parent agency | State of Maryland | 
| Website | mdot | 
The Maryland Department of Transportation (MDOT) is an organization comprising five business units and one Authority:[2]
- Maryland Transportation Authority (Transportation Secretary serves as chairman of the Maryland Transportation Authority)
 - Maryland Transit Administration
 - Maryland Port Administration
 - State Highway Administration
 - Maryland Motor Vehicle Administration
 - Maryland Aviation Administration
 
Secretaries of Transportation
- 2025–present, Samantha Biddle (Acting Secretary)[3]
 - 2023–2025, Paul Wiedefeld[4][5]
 - 2022–2023, James F. Ports Jr.[6][7]
 - 2020–2022, Gregory I. Slater[8][9]
 - 2015–2020, Pete K. Rahn[10]
 - 2013–2015, James T. Smith Jr.
 - 2012–2013, Darrell Mobley (Acting Secretary)
 - 2009–2012, Beverley K. Swaim-Staley
 - 2007–2009, John D. Porcari
 - 2003–2007, Robert L. Flanagan
 - 1999–2003, John D. Porcari
 - 1995–1998, David L. Winstead
 - 1991–1994, O. James Lighthizer
 - 1987–1991, Richard H. Trainor
 - 1984–1987, William K. Hellmann
 - 1981–1984, Lowell K. Bridwell
 - 1979–1981, James J. O'Donnell
 - 1977–1979, Herman K. Intemann
 - 1971–1977, Harry R. Hughes[10]
 
References
- ^ a b "Maryland Department of Transportation FY 2020-2025 Consolidated Transportation Program". Maryland Department of Transportation. Archived from the original on July 4, 2020. Retrieved July 9, 2020.
 - ^ "Maryland Department of Transportation (MDOT official website)". Retrieved January 13, 2022.
 - ^ Sears, Bryan P. (July 9, 2025). "Wiedefeld leaving MDOT, search for new transportation secretary begins". Maryland Matters. Retrieved July 9, 2025.
 - ^ "Transportation Acting Secretary Paul J. Wiedefeld - MDOT". Maryland Department of Transportation. Retrieved February 10, 2023.
 - ^ "Paul J. Wiedefeld, Maryland Secretary of Transportation". Maryland Manual On-Line. Maryland State Archives. Retrieved February 10, 2023.
 - ^ "Transportation Secretary James F. Ports, Jr. - MDOT". Maryland Department of Transportation. Retrieved January 13, 2022.
 - ^ "James F. Ports, Jr., Maryland Secretary of Transportation". Maryland Manual On-Line. Maryland State Archives. January 11, 2022. Retrieved January 13, 2022.
 - ^ "Transportation Secretary Gregory Slater - MDOT". Maryland Department of Transportation. Archived from the original on December 17, 2021. Retrieved January 1, 2022.
 - ^ "Gregory I. Slater, Maryland Secretary of Transportation". Maryland Manual On-Line. Maryland State Archives. January 12, 2022. Retrieved January 13, 2022.
 - ^ a b "Maryland Departments - Former Secretaries". Maryland Manual On-Line. Maryland State Archives. January 11, 2022. Retrieved January 13, 2022.
 
External links

