4 votes

Bohan Dillon Road Bridge


Bohn Dillon

Looking SW

Photo taken by Craig Philpott in September 2009


BH Photo #146293

Street View 


Deck truss bridge over South Fork Gualala River on Bohan Dillon Road
Sonoma County, California
Open to traffic
Built 1950
A double-single (two side-by-side, single tall) pre-fab modular steel deck truss
Length of largest span: 71.9 ft.
Total length: 77.1 ft.
Deck width: 12.1 ft.
Approximate latitude, longitude
+38.52694, -123.19278   (decimal degrees)
38°31'37" N, 123°11'34" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/483196/4264300 (zone/easting/northing)
Quadrangle map:
Fort Ross
Average daily traffic (as of 2015)
Inventory numbers
CA 20C-435 (California bridge number)
BH 11604 (Bridgehunter.com ID)
Inspection report (as of June 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 55.3 (out of 100)
View more at BridgeReports.com

Update Log 

  • June 14, 2017: Updated by Fmiser: Moved from category "Bailey" to "Pre-fab, modular steel panel truss"
  • July 30, 2012: Updated by James Baughn: Corrected spelling of name
  • June 6, 2010: New Street View added by Craig Philpott
  • September 13, 2009: Updated by Craig Philpott: This is actually a Bailey truss


  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Fmiser - fmiser [at] gmail [dot] com


Bohan Dillon Road Bridge
Posted January 26, 2015, by Gil Graham (ggraham [at] baileybridge [dot] com)

This is certainly not a Bailey Bridge.

Bohn Dillon Road Bridge
Posted September 14, 2009, by J.R. Manning (thekitchenguy [at] sbcglobal [dot] net)

Are you related to someone named Bohn?

Bohn Dillon Road Bridge
Posted September 14, 2009, by Anthony Dillon (spansaver [at] hotmail [dot] com)

I kinda like the name of this bridge!