Trip Planner:   USA  /  Maine  /  Mid Coast Maine  /  Prospect  /  Sightseeing  /  Penobscot Narrows Bridge
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.
Penobscot Narrows Bridge is just one of the many highlights you can arrange to see using our world travel planner, Prospect Edition.
Create a full Prospect itinerary

Plan your trip to Prospect

  • Get a personalized plan

    A complete day-by-day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.
  • 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. 
  • I had no idea there was such a cool place along Route 1 until I happened to see it on Google Maps. The views from the top of the observatory are spectacular - 400 feet above the surrounding countrysid...  more »
  • The observatory is 15' taller than the Empire State Building. There is an elevator which takes visitors to the top, then a short flight of stairs. There is even a handicapped access which will accommo...  more »
  • 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.