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South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

South Fork Trinity River Bridge, State Highway 299 spanning South Fork Trinity River, Salyer, Trinity County, CA

 
 
description

Summary

Significance: The South Fork Trinity River Bridge is one of a very limited number of cantilever truss highway bridges in California. Best suited to specific terrain conditions such as deep canyons to be crossed by a single span, or where use of falsework was impractical, the type enjoyed brief popularity in California during the decade spanning the late 1920s to the late 1930s. With a high degree of integrity, and representing a type, period, and method of construction, the South Fork Trinity River Bridge was determined eligible for inclusion in the National Register of Historic Places on December 9, 1983, meeting Criterion C at the local level of significance.
Survey number: HAER CA-29
Building/structure dates: 1930 Initial Construction

person

Contributors

Historic American Engineering Record, creator
Mercer-Fraser Company
Korbel Lumber Company
Santa Cruz Portland Cement Company
American Bridge Company
J.A. Mohr and Sons
place

Location

create

Source

Library of Congress
copyright

Copyright info

No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html