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Contact MDOT SHA


Report all highway emergencies not requiring police assistance, such as traffic signal outages and sinkholes, to our Statewide Operations Center toll free at 1-800-543-2515 or 410-582-5650 (local).



ADA Reasonable Accommodation Request Form

Roads We Maintain

The Maryland Department of Transportation State Highway Administration (MDOT SHA) owns and maintains all non-toll, numbered roads - such as I-495 (the Capital Beltway), MD 355 (Rockville Pike) and US 40 (Baltimore National Pike) - in Maryland's 23 counties.

  • Roads without a number are maintained by the county or municipality.
  • Toll roads (including I-95, the Bay Bridge and the Fort McHenry Tunnel) are owned and maintained by the Maryland Transportation Authority (MDTA).
  • In Baltimore City, local roads, interstates and numbered routes are maintained by the Baltimore City Department of Transportation (Toll roads I-95, I-395 and I-895, within the city are maintained by the Maryland Transportation Authority). For help with potholes and other concerns go to https://balt311.baltimorecity.gov/citizen/servicetypes or call 311.

Frequently Asked Questions

Click here for answers to common questions, including questions about topics such as the following:

  • access management/permits
  • bridges
  • claims
  • hauling and motor carriers
  • signs on State highways
  • road maintenance
  • sound barriers

Customer Service Bill of Rights


For more information about the Maryland SafeZones automated speed enforcement program:

Learn more about Maryland's 511 Traveler Information Program

For all other inquiries, call 410-545-0300 or 800-323-6742.

This line is staffed Monday-Friday, 8:00 a.m-4:30 p.m.