Blackford Road Bridge
Facts
- Overview
- Through truss bridge over Bear River-Camp Far West Lake Spillway on Blackford Road
- Location
- Yuba County, California
- Status
- Open to traffic
- History
- Built 1916; moved from ? to this location 1967
- Design
- Pin-connected Pennsylvania through truss with vertical end posts.
- Dimensions
-
Length of largest span: 303.2 ft.
Total length: 310.1 ft.
Deck width: 18.0 ft.
Vertical clearance above deck: 13.7 ft.
- Approximate latitude, longitude
- +39.05238, -121.31944 (decimal degrees)
39°03'09" N, 121°19'10" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/645419/4323933 (zone/easting/northing)
- Quadrangle map:
- Camp Far West
- Elevation
- 322 ft. above sea level
- Average daily traffic (as of 2011)
- 540
- Inventory numbers
- CA 16C-81 (California bridge number)
BH 11755 (Bridgehunter.com ID) - Inspection report (as of August 2018)
- Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 49.8 (out of 100)
View more at BridgeReports.com
Update Log
- June 10, 2016: New photos from Erik Hoffman
- November 21, 2015: New Street View added by Erik Hoffman
- October 8, 2015: Updated by Erik Hoffman: Corrected bizarre spellings
- May 23, 2010: Updated by Craig Philpott: corrected details and added photos
- April 25, 2010: New Street View added by Nathan Holth
Sources
- Nathan Holth
- Craig Philpott - craigphilpott63 [at] gmail [dot] com
- Erik Hoffman - norcalroadswebsite [at] gmail [dot] com
Comments
The spillway elevation was raised from 187' to 300' in 1963. Prior to this time there was a crossing of the upper lake at the bottom of section 22, so a possible earlier location for this bridge. The earlier, lower level lake did not have a road across the spillway.
I agree Luke, I don't see anything to suggest the endposts extend down to create truss legs.
Doubtful, as a bedstead has legs that function as support/substructure, and this appears to be more of a case of vertical endposts.
I feel like this could technically be reclassified as a bedstead Pennsylvania through truss - perhaps the only on on the site - because the end posts do act like those of a traditional bedstead in this relocated single-span scenario.
Because of the vertical end posts, this bridge appears to me to have been one span of a multi span bridge when first installed at the original unknown location.
Why doesn't it say where the bridge was moved from? It wasn't built where it's at.
This page's URL is http://bridgehunter.com/ca/yuba/16C0081/
Yeah I've done a bit more research & a second site visit and you're right about the legs not being bedsteads. Sorry, premature conclusion. I thought maybe they extended down into the concrete abutments, since many bedsteads have their legs encased in concrete, but that's clearly not the case.