2 votes

Old Elkhorn Ave Bridge





License: Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

View this photo on Flickr

BH Photo #293712


Street View 


Concrete pony arch bridge over Fresno Slough on an old alignment of Elkhorn Ave
Fresno County, California
Open to pedestrians only
Built 1916;
Concrete Pennsylvania Pony Truss, or maybe a Concrete pony arch
Also called
Burrel Bridge
Approximate latitude, longitude
+36.48528, -120.00493   (decimal degrees)
36°29'07" N, 120°00'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/768310/4041946 (zone/easting/northing)
Quadrangle map:
Five Points
Inventory number
BH 62921 (Bridgehunter.com ID)

Update Log 

  • March 5, 2020: New photos from Nathan Holth
  • September 7, 2014: Updated by Fmiser: Changed design from "concrete arch" to "concrete pennsylvania pony", added construction year.
  • September 6, 2014: New Street View added by James McCray


  • James McCray - jamesinslocomb [at] yahoo [dot] com
  • Fmiser - fmiser [at] gmail [dot] com
  • Nathan Holth


Old Elkhorn Ave Bridge
Posted September 7, 2014, by Fmiser (fmiser [at] gmail [dot] com)

Clearly shaped like a Pennsylvania truss. Does it function like a truss? I don't know. I don't think it's really an arch, but without stress/load measurements it can be tricky to figure out what it _acts_ like - but it _looks_ like a Pennsylvania truss.

It can't be plain concrete as those diagonals are under tension - and concrete is nearly useless under tension.

The construction date is from a comment on the Flicker page.

Nice find!!

Old Elkhorn Ave Bridge
Posted September 7, 2014, by Matt Lohry

Looking at the upper chord, I believe this may actually be an extremely rare concrete pony truss, perhaps even a Pennsylvania, which would certainly be the only one I've ever seen! I think this because the upper chord is polygonal whereas rainbow arch chords are smoothly curved, and also, the web members clearly show the Pennsylvania truss configuration. I can't tell if it's fully concrete or concrete-encased steel, but very unique either way!

Old Elkhorn Ave Bridge
Posted September 7, 2014, by Robert Elder (robertelder1 [at] gmail [dot] com)

It is clearly a Rainbow Arch, but I doubt it is a Marsh Arch. Marsh Arch bridges don't seem to have diagonal members - at least not that I have encountered.

Old Elkhorn Ave Bridge
Posted September 6, 2014, by James McCray (jamesinslocomb [at] yahoo [dot] com)

Found this awesome bridge! Not on NBI, and not previously listed on here. Now, is this a "Marsh Arch?" Or is it something else? I just listed it as generic "Concrete Pony Arch." Anyone with more info please comment.