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Prospect in Waldo County, Maine — The American Northeast (New England)
 

A Revolutionary Replacement

First Cable-Stayed Bridge in Maine

— Tallest Public Bridge Observatory in the World —

 
 
A Revolutionary Replacement marker image. Click for full size.
Photographed by Darren Jefferson Clay, October 15, 2024
1. A Revolutionary Replacement marker
Inscription. It may be surprising to know that the entire weight of the bridge deck and any vehicles on it is supported by a system of wires only 1/5 inch in diameter, Seven of these pencil-thin wires are twisted together, then coated with epoxy to prevent corrosion, producing a cable "strand".

Between 41 and 73 of these strands make up each of the long cable "stays" that stretch from the towers to the road deck. This totals 2,532 individual epoxy-coated strands, measuring 1,897,650 linear feet, or 359 miles.

Since each strand is made up of seven wires, this totals more than 2,500 miles of wire - enough to stretch from here to Portland, Oregon. Each of these strands can hold a weight of 58,900 pounds, the equivalent of 25 automobiles or 350 people.
 
Topics. This historical marker is listed in this topic list: Bridges & Viaducts.
 
Location. 44° 33.63′ N, 68° 48.235′ W. Marker is in Prospect, Maine, in Waldo County. It can be reached from Fort Knox Road. Touch for map. Marker is in this post office area: Stockton Springs ME 04981, United States of America. Touch for directions.

Regionally, this marker is in Midcoast Maine and on Penobscot Bay. It is also in the American Northeast and in New England. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Penobscot Bay (a few steps from this marker); Penobscot Narrows Bridge and Observatory (within shouting distance of this marker); The Waldo-Hancock Bridge
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(about 300 feet away, measured in a direct line); Segment by Segment (about 400 feet away); Waldo-Hancock Suspension Bridge (about 400 feet away); a different marker also named The Waldo-Hancock Bridge (about 500 feet away); A Modern Achievement (about 500 feet away); By the Numbers (about 500 feet away). Touch for a list and map of all markers in Prospect.
 
A Revolutionary Replacement marker image. Click for full size.
Photographed by Darren Jefferson Clay, October 15, 2024
2. A Revolutionary Replacement marker
 
 
Credits. This page was last revised on November 4, 2024. It was originally submitted on October 27, 2024, by Darren Jefferson Clay of Duluth, Georgia. This page has been viewed 98 times since then and 10 times this year. Photos:   1, 2. submitted on October 27, 2024, by Darren Jefferson Clay of Duluth, Georgia. • Bill Pfingsten was the editor who published this page.
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Jun. 18, 2026