Maryland Transportation Section 21-1401
§ 21-1401.
  (a)   In this subtitle the following words have the meanings indicated.
  (b)   "Approach" means any roadway, overhead structure, ramp, bridge, causeway, entrance, and exit provided as a means of access to or departure from a vehicular crossing.
  (c)   "Bridge" means any bridge within the jurisdiction of the Maryland Transportation Authority.
  (d)   "Tunnel" means:
    (1)   The Baltimore Harbor Tunnel; and
    (2)   Any other tunnel within the jurisdiction of the Maryland Transportation Authority.
  (e)   "Vehicular crossing" means:
    (1)   Each tunnel and bridge within the jurisdiction of the Maryland Transportation Authority; and
    (2)   Each approach to these tunnels and bridges.