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

Segment by Segment

Photographed by Darren Jefferson Clay, October 15, 2024

1. Segment by Segment Marker

Inscription.
This is a full-size segment, identical to those that make up the Penobscot Narrows Bridge.

The Penobscot Narrows Bridge span consists of 181 segments, suspended on cables from 442-foot-high pylons. Crews worked to build these segments in all kinds of weather, 150 feet above the river and its steep banks. Each hollow segment weighs about 300,000 pounds, and contains some 70 cubic yards of concrete and 20,000 pounds of steel. Each is 12 feet 10 inches tall, 31 feet wide at the base, and 57 feet 6 inches wide on top.

Four crews were needed to construct the segments of the complex span structure-one crew on each side of the two pylons. They used movable steel forms, proceeding outward from each pylon in both directions, thus balancing the weight. Ultimately, the segments were connected to the abutments on the shores, and at the mid-span of the bridge.

Topics. This historical marker is listed in these topic lists: Architecture • Bridges & Viaducts.

Location. 44° 33.677′ N, 68° 48.286′ W. Marker is in Prospect, Maine, in Waldo County. It can be reached from Fort Knox Road (Maine Route 174) near Acadia Hwy. (U.S. 1), on the left when traveling south. 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

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markers are within walking distance of this marker: Waldo-Hancock Suspension Bridge (within shouting distance of this marker); By the Numbers (within shouting distance of this marker); A Modern Achievement (within shouting distance of this marker); The Waldo - Hancock Bridge (within shouting distance of this marker); The Waldo-Hancock Bridge (within shouting distance of this marker); a different marker also named The Waldo-Hancock Bridge (about 300 feet away, measured in a direct line); Penobscot Narrows Bridge and Observatory (about 300 feet away); A Revolutionary Replacement (about 400 feet away). Touch for a list and map of all markers in Prospect.

Also see . . . Penobscot Narrows Bridge and Observatory. (Submitted on November 9, 2024, by Michael Herrick of Southbury, Connecticut.)

Photographed by Darren Jefferson Clay, October 15, 2024

2. Segment by Segment Marker

Bridge Segment image. Click for full size.

Photographed by Darren Jefferson Clay, October 15, 2024

3. Bridge Segment

Bridge Cables image. Click for full size.

Photographed by Darren Jefferson Clay, October 15, 2024

4. Bridge Cables

Credits. This page was last revised on November 9, 2024. It was originally submitted on November 3, 2024, by Darren Jefferson Clay of Duluth, Georgia. This page has been viewed 121 times since then and 8 times this year. Photos: 1, 2, 3, 4. submitted on November 3, 2024, by Darren Jefferson Clay of Duluth, Georgia. • Michael Herrick was the editor who published this page.