Rating:
3 votes

South Fork Trinity River Bridge

Photos 

View To Northeast. Oblique View Of Upstream Side Of Bridge. (90mm Lens)

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #196328

Map 

Street View 

Facts 

Overview
Lost Deck truss bridge over South Fork Trinity River on State Route 299 in Salyer
Location
Salyer, Humboldt County, California, and Trinity County, California
Status
Replaced by new bridge
History
Built 1929, Replaced 1988
Builders
- American Bridge Co. of New York (Steel Fabricator)
- Charles H. Purcell (State Bridge Engineer)
- Mercer-Fraser Co. (Contractor)
Design
The South Fork Trinity River Bridge was a continuous steel deck truss with steel stringer approach spans. It was supported on reinforced concrete piers and bents on spread footings. Its six spans totaled 483-feet in length, 25.7-feet in width, and carried two-lanes on a 24-foot roadway.
(Historic American Engineering Record CA-29)
Dimensions
Total length: 483.0 ft.
Deck width: 24.0 ft.
Approximate latitude, longitude
+40.88667, -123.60000   (decimal degrees)
40°53'12" N, 123°35'60" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/449452/4526349 (zone/easting/northing)
Quadrangle map:
Salyer
Inventory number
BH 43360 (Bridgehunter.com ID)

Update Log 

  • April 20, 2014: Updated by Patrick Feller: Removed category "Trinity River (Texas)"
  • March 28, 2011: New photos from Michael Goff
  • May 11, 2010: New Street View added by Craig Philpott
  • September 9, 2009: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • HAER CA-29 - South Fork Trinity River Bridge
  • Craig Philpott - craigphilpott63 [at] gmail [dot] com