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Truckee River Railroad Bridge

Nevada County, California

Photo 

Truckee River Railroad Bridge

Date 1860-1870, California Society of Pioneers

Photo submitted by Craig Philpott

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View this photo at content.cdlib.org

BH Photo #200464

Map 

Description 

Timber double intersection Howe through truss on original route of Union Pacific Railroad through Sierra Nevada Mountains.

Facts 

Overview
Lost Bridge over Truckee River on Union Pacific BNSF Railroad
Location
Nevada County, California
Status
Replaced by new bridge
Railroad
- Southern Pacific Railroad (SP)
Design
Timber double intersection Howe through truss
Approximate latitude, longitude
+39.44232, -120.01084   (decimal degrees)
39°26'32" N, 120°00'39" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/757240/4370128 (zone/easting/northing)
Quadrangle map:
Boca
Elevation
5113 ft. above sea level
Inventory number
BH 48870 (Bridgehunter.com ID)

Categories 

California (2,349)
Howe through truss (374)
Howe truss (460)
Lost (19,565)
Nevada County, California (31)
Owned by railroad (10,254)
 Replaced by new bridge (12,918)
Southern Pacific Railroad (511)
Through truss (13,171)
Truckee River (21)
Truss (29,923)

Update Log 

  • June 7, 2011: Updated by Craig Philpott: corrected design description
  • June 6, 2011: Added by Craig Philpott

Sources 

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Comments 

Truckee River Railroad Bridge
Posted January 12, 2016, by TRC (covbridges [at] msn [dot] com)

The image posted is actually the second crossing of the Truckee River (which was much closer to the state line), specifically (39° 26.534'N, 120° 0.657'W). The bridge at the crossing indicated by the map on this webpage was the first crossing and it was a long (18-panel) single span Howe Through Truss.

Truckee River Railroad Bridge
Posted June 7, 2011, by Will (Bridgewright [at] ymail [dot] com)

Ditto - Thats's a Howe.

Did it have a decade long service life, or was it built sometime in the 60's ?

It was not an uncommon thing for a through truss to sit unhoused or unboxed for some years. What was the habit of this particular RR? Did they build other examples?

Truckee River Railroad Bridge
Posted June 6, 2011, by Michael Goff (michael [dot] goff [at] odot [dot] state [dot] or [dot] us)

I agree with Matt, that is a stout exposed timber double intersecting Howe through truss.

Truckee River Railroad Bridge
Posted June 6, 2011, by Matt Lohry

Very interesting...almost appears to be a double-intersection Howe truss. Any other ideas out there?

Truckee River Railroad Bridge
Posted June 6, 2011, by Craig Philpott (cphilpott [at] puc [dot] edu)

Assistance requested on truss design description.