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Penobscot Narrows Bridge, Prospect

(4.6/5 based on 260+ reviews on the web)
The Penobscot Narrows Bridge is a 2120ft long cable-stayed bridge that carries US 1/SR 3 over the Penobscot River. It connects Verona Island to Prospect, in the U.S. state of Maine. It replaced the Waldo–Hancock Bridge, built in 1931.Technical informationThe Penobscot Narrows Bridge is one of three bridges in the US constructed recently to utilize a cradle system that carries the strands within the stays from bridge deck to bridge deck, as a continuous element, eliminating anchorages in the pylons. Each epoxy-coated steel strand is carried inside the cradle in a one-inch steel tube. Each strand acts independently, allowing for removal, inspection and replacement of individual strands. The cable-stay system was designed with a system that uses pressurized nitrogen gas to defend against corrosion.In June 2007, six reference strands within three stays were replaced with carbon fiber strands – a first in the US. Monitoring on the strands will evaluate this material for future use in bridge designs. These engineering innovations helped the bridge appear in the December 2006 edition of Popular Science as one of the 100 best innovations of the year. The total project cost was $85 million.
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  • Not everyone needs to go all the way to the top for a great view. However it is amazing. It is only open certain hours so make sure you view the web site first. Really miss the chance if you are visit...  more »
  • Stoopped here on advice of guide books and person at Maine info center.It was worth the stop.Went to the top of worldès tallest observatory bridge 422 ft..Elevator gets you to top in under a minute an...  more »
  • It's worth it to stop along and head up to the top of the bridge's viewing tower to take a gander at the Penobscot River. It is a great place to get panoramic views of Maine's wonderful fall foliage. 
  • Crossed this beautiful bridge on the way to Acadia and decided to check it out on the way back. You can buy a ticket and take an elevator to an observation deck at the top for 360 views. I would recommend taking a trip up to the top in the Fall for fantastic foliage views. For photogs, it's completely glass cased at the top so watch out for glare.
  • Beautiful view. Friendly staff. Nice stop along the way up Maines coast.
  • Worth a quick stop. Fort knox is more worth the time....
  • Definitely a great place to stop! Don't just see the bridge visit Fort Knox also!
  • The Bridge is a marvel of construction. The granite used in the towers was came from the same quarry that supplied granite used on the Washington Monument.