Rock Creek Bridge, Shoshone Street West spanning Rock Creek, Twin Falls, Twin Falls County, ID

Significance: The Rock Creek Bridge is exceptionally unique as one of only two viaduct-type highway bridges in the Idaho State Bridge Inventory. / In a historical context, the structure reflects the vast improvements in steel bridge technology which made timber bridge construction obsolete. Significantly enough, Twin Falls County records indicate that several of the old wood trestle bridges spanning Rock Creek were replaced with steel structures during the decade, 1910-1920.

Survey number: HAER ID-21

Building/structure dates: 1920 Initial Construction

Building/structure dates: 1954 Subsequent Work

Building/structure dates: 1992 Demolished

vehicular bridges pedestrian bridges twin falls idaho bridge rock creek bridge shoshone shoshone street west rock creek twin falls twin falls twin falls county idaho deck trusses steel truss bridges riveted joints lattices towers transportation rebecca herbst historic american engineering record c robert humphrey idaho transportation department david maul charles h mull r m murray craig worth photo ultra high resolution high resolution library of congress

1969 - 1980

Library of Congress

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