The Penobscot Narrows Bridge Observatory
Experience the thrill of the tallest bridge observatory in the world!
Special Notice: Penobscot Narrows Observatory and Fort Knox Historic Site will be open for school vacation week, April 21-27, 2014 from 9 to 4. (Regular Fees Apply) The Fort and Observatory reopen for the season on May 1st, 2014.
Fun Facts About the Penobscot Bridge Observatory
- The Penobscot Narrows Bridge is the only bridge observatory in the United States, and only one of four bridge observatories in the world.
- The Penobscot Narrows Bridge opened on December 30, 2006, and the observatory opened on May 19, 2007.
- The bridge spans 2,120 feet from the east shore to the west shore, and there is 135 feet between the water and the bridge’s travel surface.
- The bridge cost $85 million to design and build. This bridge was planned, funded, designed, permitted and built in only 42 months.
- The top of the Penobscot Narrows Bridge is 447 feet tall. The observatory is 420 feet above the river and offers 360 degree views of the surrounding area.
- The design of the Penobscot Narrows Bridge incorporates a granite theme to honor the significance that granite has in the local economy.
- The Washington Monument was partially built with granite from nearby Mt. Waldo, leading to the design of the two towers in the shape of the Washington Monument.
- The observatory floor is tiled in granite that was cut from a quarry in Deer Isle.
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