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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

Jun 15

WWE Monday Night Raw

7:00 PM

201 W Baltimore St,
Baltimore, MD 21201

Stop by and visit the DriveEzMD Outreach Team before Monday Night Raw! We’ll be there to help answer your E-ZPass questions, share useful information, and have fun freebies!

Jun 20

Perry Hall/White Marsh Town Fair

10:00 AM

4601 Block of Ebenezer Road in Nottingham, MD 21236

Join DriveEzMD at the Perry Hall/White Marsh Town Fair event for an evening of family fun, community engagement, and great local activities! Enjoy food, family-friendly entertainment, and stop by the DriveEzMD booth for games, giveaways, and assistance with E-ZPass.

Jun 21

Iron Birds

2:00 PM

873 Long Dr,
Aberdeen, MD 21001

DriveEzMD is heading to Ripken Stadium for an evening with the Aberdeen IronBirds! Stop by our booth for games, giveaways, and assistance with any E-ZPass questions. Whether you’re catching the game with family and friends or visiting the stadium for the first time, be sure to swing by and connect with the DriveEzMD team throughout the event.