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List of tunnels in the United States

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The following is a list of tunnels in the United States of America.

See: List of tunnels

Alabama

Alaska

Arizona

Arkansas

California

Colorado


District of Columbia

Hawaii

Illinois

Kentucky

Maryland

Massachusetts

Michigan

Minnesota

Montana

New Jersey

Yhwjavjen Tyhhek[[New Jersey Transit, Weehawken, New Jersey

New York

North Carolina

-=Blue Ridge Parkway tunnels=- (plus one more in Virginia)

-= other NC tunnels=-

Oregon

Ohio

Pennsylvania

South Carolina


Tennessee

Texas

Opened in 1952. The Washburn Tunnel runs north-south beneath the Houston Ship Channel and connects the cities of Galena Park and Pasadena, and is the only vehicle tunnel currently in operation in the state of Texas.The tunnel consists of a single bore, 895 meters in length, with a 6 percent roadway grade outward from the center towards each exit. Forced transverse ventilation is potentially provided by three automatic blower fans located in a tower at the north entrance; however, only one blower fan was in use during this sampling study. Ambient air is drawn through screens on the north and south faces of the fan room and is channeled into a closed-end chamber that runs beneath the vehicle tunnel. This air is forced out of the closed-end chamber through vents located throughout the length of the tunnel at street level along both sides. Additional longitudinal ventilation is induced by the flow of vehicles and by the prevailing winds, which were generally light (2 m/s – 4 m/s)

Virginia

West Virginia

Washington

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