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Oregon Trail Memorial Bridge

Photos 

Capitol Blvd. Bridge

Looking SW

Photo taken by Royce and Bobette Haley in August 2014

Enlarge

BH Photo #296970

Map 

Street Views 

Facts 

Overview
Concrete arch bridge over Boise River on Capital Boulevard in Boise
Location
Boise, Ada County, Idaho
Status
Open to traffic
History
Built 1931; rehabilitated 1992
Builders
- Boise Construction Co. of Boise, Idaho
- Charles A. Kyle of Canada (Designer)
- Morrison-Knudsen Co. of Boise, Idaho
Design
Open spandrel deck arch
Dimensions
Length of largest span: 76.1 ft.
Total length: 303.2 ft.
Deck width: 47.9 ft.
Recognition
Posted to the National Register of Historic Places on November 5, 1990
Also called
Capitol Boulevard Bridge
Approximate latitude, longitude
+43.60833, -116.20861   (decimal degrees)
43°36'30" N, 116°12'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/563864/4828676 (zone/easting/northing)
Quadrangle map:
Boise South
Average daily traffic (as of 2016)
20,000
Inventory numbers
ID 21445 (Idaho bridge number)
NRHP 90001717 (National Register of Historic Places reference number)
BH 14810 (Bridgehunter.com ID)
Inspection report (as of September 2018)
Overall condition: Fair
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 75.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • November 18, 2020: New photo from Geoff Hubbs
  • June 20, 2020: New photo from Geoff Hubbs
  • October 4, 2014: Updated by Luke: Added category "Morrison-Knudsen Co."
  • October 4, 2014: Updated by Royce and Bobette Haley: Added builders
  • October 2, 2014: New photos from Royce and Bobette Haley
  • March 21, 2012: New Street View added by Craig Philpott

Sources 

  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Geoff Hubbs