Transportation in New York City City and Fort Lee, New Jersey, is the world's busiest bridge in terms of vehicular traffic. New York has historically been a pioneer in tunnel construction. Most carry rail lines, but there are four exceptions. The Lincoln Tunnel, which carries 120,000 vehicles per day under the Hudson River between New Jersey and Manhattan, is the world's busiest vehicular tunnel. The Holland Tunnel, also under the Hudson River, was the first mechanically ventilated vehicular tunnel in the world and is considered a National Civil Engineering Landmark by the American Society of Civil Engineers. Two other notable tunnels connect Manhattan to other
River Vale, New Jersey section bordering Emerson to the south, Harrington Park to the southeast, Old Tappan to the east, and Pearl River, New York to the north. Its borders are defined by the Hackensack River to the east, which was dammed to form Lake Tappan, and Pascack Brook to the south. The northern border is defined by the New York-New Jersey state border. The western border has several sections, including a section defined by an unnamed creek and a section defined by Cedar Lane. The southern portion of the township lies between the Hackensack River and Pascack Brook, and is relatively flat. The