The Baltimore Harbor Tunnel, opened in November 1957, is a 1.4-mile, four-lane tunnel that crosses under the Patapsco River in Baltimore, Maryland. It serves as a vital connection for major north-south highways and arterial routes in the city's industrial areas.
With a total length of approximately 18.5 miles, including the tunnel and approach roadways, the Baltimore Harbor Tunnel is equipped with the E-ZPass electronic toll collection system. It prohibits vehicles carrying hazardous materials, oversized vehicles, and double trailers from using the tunnel, ensuring the safety and efficiency of traffic flow.
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