Born-Digital or AnalogAnalogTranscriptAmerican concrete institute Four precast segmented bridges on Vail Pass, Colorado, win top honors from Rocky Mountain Chapter of the American Concrete Institute. RMN Mr 24, 1977 P 33 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
American concrete institute, [67205]. Denver Public Library Digital Collections, accessed 12/07/2025, https://digital.denverlibrary.org/nodes/view/1278084
