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Subject: U.S. Route 113, Interstate 695 (Maryland), Interstate 270 (Maryland), U.S. Route 40 in Maryland, Maryland Route 25
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Maryland State Highway Administration
Agency overview
Formed 1908
Jurisdiction Maryland
Headquarters 707 North Calvert Street, Baltimore, Maryland 21202
Agency executive Melinda Peters, Administrator
Parent agency Maryland Department of Transportation

The Maryland State Highway Administration (abbreviated MDSHA, MSHA, or simply SHA) is the state agency responsible for maintaining Maryland numbered highways[1] outside of Baltimore City.[2] Formed in 1908 as the State Roads Commission (SRC),[3] it is tasked with maintaining non-tolled bridges throughout the state, removing snow from the state's major thoroughfares, administering the state's "adopt-a-highway" program, and both developing and maintaining the state's freeway system. It is a division of the Maryland Department of Transportation and is currently overseen by Melinda Peters.[4][5]

The headquarters for MSHA is located in Baltimore City. This building houses numerous divisions and offices, such as:

  • Office of Planning and Preliminary Engineering
  • Office of Highway Development
  • Office of Traffic and Safety
  • Office of Structures
  • Office of Environmental Design
  • Office of Construction
  • Office of Policy and Research
  • Office of Real Estate
  • Office of CHART and ITS Development (Note that "CHART" is an acronym for Coordinated Highways Action Response Team and provides incident response services throughout the State, though it only provide regular patrols on interstates and a select few major arterials.)[6]

MSHA also maintains four research labs located throughout the State, as well as the Office of Traffic and Safety (OOTS) located in Hanover -- which houses several additional divisions. Some other services provided at the OOTS complex include:

  • Traffic Engineering Design Division, which is responsible for the development of new traffic signals, signal modifications, upgrades, and signal phasing.
  • Office of Maintenance, which provides assistance with recurring maintenance tasks that require more intensive study—particularly roadway safety and resurfacing projects.
  • The Statewide Operations Center is responsible for requesting incident response teams for incidents on State roadways. Responders may including police, fire, medical, CHART, MEMA, environmental, or maintenance teams. This facility is also equipped to operate as a Statewide Transportation Emergency Operations Center.
  • The signal shop, which provides personnel and equipment for the maintenance and programming of signals along State roadways in every county[7] except Montgomery County.
  • The sign shop, which designs and fabricates signing for use throughout the entire state.

While OOTS and the Districts oversee the installation, modification, operation, maintenance, and removal of traffic signals along State roadways, Montgomery County differs in that it is responsible for the operation and maintenance of all signals within the County—even those along State roadways. However, the Districts and OOTS still control decisions regarding the installation, modification (including phasing), and removal of signals. A result of this agreement is that it relieves MSHA of some of the additional resource cost of the regular duties with regards to signals.


There are seven districts in the State. These districts at the least, have divisions for traffic, construction, maintenance, and utilities. Each district also oversees several maintenance shops—typically one per county. The following is a table of the districts, counties within their jurisdiction, and their respective headquarters.[8]

District Counties Headquarters
1 Wicomico County

Worcester County
Somerset County
Dorchester County

2 Cecil County

Kent County
Queen Anne's County
Talbot County
Caroline County

3 Montgomery County

Prince George's County

4 Baltimore County

Harford County

5 Anne Arundel County

Calvert County
Charles County
Saint Mary's County

6 Washington County

Allegany County
Garrett County

La Vale
7 Frederick County

Howard County
Carroll County


See also

  • Maryland Roads portal


External links

  • Mobile)
  • CHART website
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