Freestone Flat Road Bridge

Photos

Freestone Flat

Looking NE.

Photo taken by Craig Philpott in March 2010

Enlarge

BH Photo #156852

Map

Map Links

Street View

Description

Bridge appears to be a combination of two different designs resulting from unknown retrofits or repairs. Steel stringer west end terminates at steel vertical support transition point to central and east end sections consisting of "double single" "bailey type" prefabricated truss elements with steel grate deck.

Facts

Overview: Deck truss bridge over Salmon Creek on Freestone Flat Road in Occidental
Location: Sonoma County, California
Status: Open to traffic
History: Built 1955
Design: Steel stringer west side approach with "Bailey type" prefabricated truss elements on center and east side.
Dimensions: Length of largest span: 63.0 ft.
Total length: 103.0 ft.
Deck width: 12.1 ft.
Approximate latitude, longitude: +38.37889, -122.92278 (decimal degrees)
38°22'44" N, 122°55'22" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/506744/4247857 (zone/easting/northing)
Quadrangle map:: Camp Meeker
Average daily traffic (as of 2015): 121
Inventory numbers: CA 20C-440 (California bridge number)
BH 11611 (Bridgehunter.com ID)
Inspection report (as of October 2017): Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Serious (3 out of 9)
Sufficiency rating: 30.8 (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"
June 6, 2010: New Street View added by Craig Philpott
March 3, 2010: Updated by Craig Philpott: Updated design and added photos

Sources

Craig Philpott - craigphilpott63 [at] gmail [dot] com
Prefabricated Bridge Elements and Systems - US Dept. of Transportation discussion of prefabricated bridge truss systems.
Fmiser - fmiser [at] gmail [dot] com