1 vote

UP - Salt River Bridge


Southern Pacific Railroad Bridge, Ash Avenue Bridge And Mill Avenue Bridge From Tempe Butte Looking Northwest

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #142873


Street View 


The bridge was completed in 1915 using spans fabricated in 1912 by the American Bridge Company. It was built for the Arizona Eastern Railroad, a subsidiary of the Southern Pacific Railroad (SP) - now the Union Pacific Railroad (UP).


Pratt through truss bridge over Salt River on UP Railroad and Amtrak in Tempe
Tempe, Maricopa County, Arizona
Open to traffic
Built 1915
- American Bridge Co. of New York
- Amtrak (AMTK)
- Arizona Eastern Railway (AZER)
- Southern Pacific Railroad (SP)
- Union Pacific Railroad (UP)
9-span Pratt through truss
Also called
SP - Salt River Bridge
AZER - Salt River Bridge
Approximate latitude, longitude
+33.43358, -111.94391   (decimal degrees)
33°26'01" N, 111°56'38" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/412256/3699753 (zone/easting/northing)
Quadrangle map:
Inventory number
BH 43031 (Bridgehunter.com ID)

Update Log 

  • January 8, 2018: Updated by Geoffrey Moreland: Date/Builder
  • October 4, 2016: Updated by Christopher Finigan: Added categories "Pin-connected", "Riveted"
  • September 2, 2012: Updated by John Marvig: Added category "railroad"
  • August 25, 2010: New photos from Doug Kerr
  • April 18, 2010: New Street View added by Kim Harvey
  • March 4, 2010: Updated by Craig Philpott: Corrected GPS data
  • July 18, 2009: Added by Kim Harvey


  • Kim Harvey
  • HAER AZ-18 - Arizona Eastern Railroad Bridge
  • HAER AZ-29 - Ash Avenue Bridge
  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • Doug Kerr
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Geoffrey Moreland


Arizona Eastern Railroad Bridge
Posted July 22, 2010, by J. Johnson (JJOh737018 [at] aol [dot] com)

Amazing how this bridge has withstood the test of time, and to think it will be 100 yrs old in 2012. Anyone knows if they will repaint or repair it, since it seems to be rusting out?

Arizona Eastern Railroad Bridge
Posted July 2, 2010, by Craig Philpott (cphilpott [at] puc [dot] edu)

If you can provide some evidence of the 1912 construction date it would be very helpful.

Arizona Eastern Railroad Bridge
Posted July 2, 2010, by craig (whogger123 [at] q [dot] com)

I believe the arizona and eastern bridge was built in 1912.