11 votes

Perrine Bridge



Photo taken Sept. 2005 by David Birckhead

BH Photo #101946

Street View 


Steel arch bridge over Snake River on US 93 at Twin Falls
Twin Falls County, Idaho, and Jerome County, Idaho
Open to traffic
Built 1976
Steel arch
Length of largest span: 993.2 ft.
Total length: 1,500.1 ft.
Deck width: 64.6 ft.
Approximate latitude, longitude
+42.60158, -114.45281   (decimal degrees)
42°36'06" N, 114°27'10" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/708959/4719717 (zone/easting/northing)
Quadrangle map:
Twin Falls
Average daily traffic (as of 2016)
Inventory numbers
ID 17580 (Idaho bridge number)
BH 14965 (Bridgehunter.com ID)
Inspection report (as of September 2018)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 77.1 (out of 100)
View more at BridgeReports.com

Update Log 

  • June 24, 2018: New photo from Mike Daffron
  • April 5, 2018: New photo from Richard Doody
  • October 3, 2014: New photos from Royce and Bobette Haley
  • December 29, 2012: New photos from Jolly Goodfellow
  • April 21, 2010: New Street View added by J.P.
  • December 22, 2008: New photos from Quinn Phelan
  • September 6, 2006: Posted photos from David Birckhead

Related Bridges 


  • David Birckhead
  • Quinn Phelan - qphelan [at] earthlink [dot] net
  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • Perrine Bridge Festival
  • Wikipedia
  • Jolly Goodfellow
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Richard Doody
  • Mike Daffron - daffmikron [at] gmail [dot] com


Perrine Bridge
Posted December 22, 2008, by Quinn Phelan (qphelan [at] earthlink [dot] net)

Here is a picture I took of this bridge in December 2000 and some interesting information I found on Wikipedia. The picture of the jumper came from the wikipedia article.

Wikipedia article:

The I. B. Perrine Bridge at Twin Falls, Idaho is a four-lane span carrying U.S. Highway 93 over the Snake River Canyon. The bridge serves as the Twin Falls area's main link to Jerome County and Interstate 84.

Originally named the Twin Falls-Jerome Intercounty Bridge, Perrine Bridge is approximately 1,500 feet (457 m) long and 486 feet (148 m) above the Snake River. The original bridge was opened to traffic in September 1927 and at the time was the highest bridge in the world. The bridge was originally a toll bridge, but the tolls proved unpopular and were eliminated in 1940.

By the early 1970s the original bridge was outdated and unable to handle heavy loads and required replacement. Construction on the current bridge was completed in 1974.

Perrine Bridge is the only man-made structure in the United States where BASE jumping is allowed year-round without a permit. As such it is a popular destination for BASE jumping enthusiasts, who often refer to it as Potato Bridge.

Adjacent to the south end of the bridge is a parking area with a visitors' center, which allows for easy access to the bridge. To the east, along the south rim of the canyon, lies the dirt ramp used by Evel Knievel when he unsuccessfully attempted to jump the canyon on his motorcycle in 1974.

The bridge is named for I. B. Perrine, who spearheaded the early 20th Century irrigation projects in Idaho's Magic Valley region. Perrine is largely credited as the main founder of Twin Falls.

Official name I.B. Perrine Bridge

Carries 4 lanes of US-93

Crosses Snake River

Locale Twin Falls, Idaho

Total length 1,500 feet (457 m)

Clearance below 486 feet (148 m)

Opening date 1974