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Baltimore Harbor Tunnel Plaza from the Air.

Baltimore Harbor Tunnel (I-895)

Baltimore Harbor Tunnel

The 1.4-mile, four-lane tunnel opened in November 1957. Designated I-895, the facility crosses under the Patapsco River and connects major north/south highways and many arterial routes in Baltimore City's industrial sections. Including the tunnel and approach roadways, the facility is approximately 18.5 miles in length.

E-ZPass Transponder

The Baltimore Harbor Tunnel operates using an E-ZPass electronic tolling system.

Propane, Hazardous Materials & Oversized Vehicle Info:

Vehicles carrying bottled propane gas in excess of 10 pounds per container (maximum of 10 containers), bulk gasoline, explosives, significant amounts of radioactive materials, and other hazardous materials are prohibited from using both the Fort McHenry and Baltimore Harbor Tunnels. In addition, vehicles in excess of 13 feet, 6 inches, in height, or 96 inches (8 feet) in width; and all double trailers are prohibited from using the Baltimore Harbor Tunnel. For additional information regarding these restrictions, please call 410-537-1374.

Contact Information:

  • Mailing Address:

    • Maryland Transportation Authority
      Baltimore Harbor Tunnel
      1200 Frankfurst Avenue
      Baltimore MD 21226
  • General Information:

Baltimore Harbor Tunnel Quick Facts:

  • Length of tunnel and ramp structures: 1.4 miles
  • Length of entire facility, including tunnel and approaches: 18.5 miles
  • Number of twin-tube tunnel sections: 21 (ea. approximately 300 ft.long)
  • Baltimore Harbor Tunnel Groundbreaking: April 21, 1955
  • First tunnel section was sunk: April 11, 1956
  • Number of tiles lining the Baltimore Harbor Tunnel: 6,500,000
  • When dedicated, the tunnel was the 5th longest underwater vehicular tunnel in the world
  • First person to pay the Harbor Tunnel toll: Omero C. Catan of Teaneck, NJ
  • Designer/engineer of the tunnel: Ole Singstad of Singstad and Baillie in New York
  • State of Maryland Project Manager of the Baltimore Harbor Tunnel: J.E. Greiner Company, now known as URS Corporation
  • Traffic Volume: 27.6 million vehicles (both directions)

Other Information:

Baltimore Harbor Tunnel History:

The Baltimore Harbor Tunnel is eligible for inclusion in the National Register of Historic Places.  For more information about its history, follow link to learn more.

Baltimore Harbor Tunnel (I-895)

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Public Calendar

Oct 17

North Point Flea Plaza Market

7:00 AM

North Point Plaza
2401 North Point Blvd., Dundalk, MD 21222

The DriveEzMD Outreach Team will be at the North Point Flea Market with games, promotional items, and answers to your E-ZPass account questions!

Oct 17

Truck or Treat – Meet Maryland’s Highway Heroes Event

10:00 AM

SHA Hanover
7491 Connely Drive, Building #1
Hanover, Maryland 21076

Come out for Trunk or Treat and Touch a Truck, where you can enjoy some Halloween fun, check out some awesome vehicles, and meet Maryland’s highway heroes! Bring the family, grab some treats, and make sure to stop by the DriveEzMD booth while you’re there!

Oct 18

North Point Flea Plaza Market

7:30 AM

2401 North Point Blvd
Dundalk, MD  21222

The DriveEzMD Outreach Team will be at the North Point Flea Market with games, promotional items, and answers to your E-ZPass account questions!