The Maryland State Highway Administration (MDSHA, MDOT SHA, or simply SHA) is the state mode responsible for maintaining Maryland's numbered highways[1] outside Baltimore.

[citation needed] There was a reorganization of the several commissions, bureaus, boards, and assorted minor agencies with departments of the executive branch and establishment of the governor's cabinet in the early 1970s following the adoption of several individual reorganization recommendations after the rejection by the voters in a November 1968 referendum of the 1968 proposed overall new state constitution prepared by the 1967–1968 Constitutional Convention.

SHA is now a division of the larger establishment of the Maryland Department of Transportation and is currently overseen by an administrator.

[4][5] MDOT SHA headquarters is located in the city of Baltimore and houses numerous divisions and offices, including: MDOT SHA also maintains a complex in Hanover, which is home to: There are seven districts in the state.

These districts at the least, have divisions for traffic, construction, maintenance, and utilities.