Tuesday, July 5, 2022

1929,1984 Royal Gorge Bridge 955' (291m) over Arkansas River west of Canon City, CO

(Bridge Hunter; Satellite)

"World's Highest Bridge 1929-2001" [HighestBridges]

The main span is 938.2' with a total length of 1,260'. This 0:08 video from a train in the gorge was the motivation for this research.

Boston Public Library Flickr via BridgeHunter, License: Creative Commons Attribution (CC BY)

The world's highest bridge, spanning the top of the Royal Gorge.

File name: 06_10_014250

Title: The world's highest bridge, spanning the top of the Royal Gorge.

Date issued: 1930 - 1945 (approximate)

Physical description: 1 print (postcard) : linen texture, color ; 5 1/2 x 3 1/2 in.

Genre: Postcards

Subject: Bridges; Rivers; Mountains

Notes: Title from item.

Collection: The Tichnor Brothers Collection

Location: Boston Public Library, Print Department

Rights: No known restrictions


Boston Public Library Flickr via BridgeHunter, License: Creative Commons Attribution (CC BY)

Diesel streamline train at bottom of the Royal Gorge along the Arkansas River near Canon City, Colorado.

File name: 06_10_014273

Title: Diesel streamline train at bottom of the Royal Gorge along the Arkansas River near Canon City, Colorado.

Date issued: 1930 - 1945 (approximate)

Physical description: 1 print (postcard) : linen texture, color ; 5 1/2 x 3 1/2 in.

Genre: Postcards

Subject: Bridges; Rivers; Mountains

Notes: Title from item.

Collection: The Tichnor Brothers Collection

Location: Boston Public Library, Print Department

Rights: No known restrictions



Boston Public Library Flickr via BridgeHunter, License: Creative Commons Attribution (CC BY)

Suspension bridge over the Royal Gorge, Colo.

File name: 06_10_014246

Title: Suspension bridge over the Royal Gorge, Colo.

Date issued: 1930 - 1945 (approximate)

Physical description: 1 print (postcard) : linen texture, color ; 5 1/2 x 3 1/2 in.

Genre: Postcards

Subject: Bridges; Rivers; Mountains

Notes: Title from item.

Collection: The Tichnor Brothers Collection

Location: Boston Public Library, Print Department

Rights: No known restrictions


p923 of 1930-06-05 Engineering News-Record

Of note in the above plans is the anchorage, a very important part of the design of a suspension bridge because of all of the tension in the cables. One advantage of this bridge is that it is anchoring in granite rock instead of a river shore. The anchorage was 100 2" pipes. Each pipe was 3' long and half of the pipe was set into the rock. 21 wires were wrapped around the other half. When they strung new cables during the 1983-4 rehab, they preserved an example of the old cable and anchorage. And Eric caught that detail.
Eric Sakowski Photo via Highest Bridges [This web page has a lot of photos of the bridge, and I highly recommend accessing it.]

The rehab made the anchorages a very visible aspect of the bridge.
2019 Nick Schmiedeler Photo via BridgeHunter, cropped

1994 Geoff Hubbs Photo via BridgeHunter, cropped, License: Released into public domain

The tourist attraction included an incline railroad that went down to...
Boston Public Library Flickr via Bridge Hunter, License: Creative Commons Attribution (CC BY)

...a hanging bridge.
Thomas Wentzel post via Dennis DeBruler



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