Manuscripts
Natural bridge of Navajo sandstone, Willow Creek. Span 185 feet, height to girder 76 feet
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Natural bridge of Navajo sandstone, Willow Creek. Span 185 feet, height to girder 76 feet
Manuscripts
mssMarston papers V025/0082
Image not available
72. Culvert at Canyon Creek. 185 feet long-12 feet span
Visual Materials
This collection contains 372 stereographic photographs (including some variants and duplicates) by photographer A. A. Hart that document the construction of the western half of first transcontinental railroad by the Central Pacific Railroad between 1864 and 1869. The collection includes all but seven of the original series, numbered from 1 to 364 by Hart (lacking 193, 323, 333, 358, 359, 362, and 364). The images chronicle the advancement of the railroad over 742 miles in California and the Sierra Nevada Mountains, Nevada, and Utah. The majority of the photographs are views of mountains, lakes, rivers, and forested areas (some with stumps from clear-cutting in the foreground), often with railroad tracks running through the center of the images. In addition, there are also images of locomotives, Chinese and other workers, equipment, bridges, tunnels, frontier and mining towns, construction camps, as well as some images of Native Americans, including Paiute and Shoshone Indians. The stereographs primarily contain Hart's own Sacramento imprint with series titles including: "Scenes in the Sierra Nevada Mountains"; "Scenes in the Valley of the Sacramento"; "Scenes in the Washoe Range"; "Scenes on the Humboldt River"; and "Scenes near Great Salt Lake". Interspersed in the collection are stereographs published without credit to Hart by Frank Durgan and Carleton E. Watkins.
photCL 184
Gothic Arch; width 174 feet, estimated height 190 feet. End of buttress of Navajo sandstone resting on Kayenta. Soda Creek branch of Escalante River
Manuscripts
mssMarston papers V026/0150
Image not available
Mechanics of the girder : a treatise on bridges and roofs, in which the necessary and sufficient weight of the structure is calculated, not assumed; and the number of panels and height of girder that render the bridge weight least, for a given span, live load, and wind pressure, are determined
Rare Books
714272
White-hat Bridge; Natural bridge in side canyon of Navajo Canyon
Manuscripts
mssMarston papers V035/0070
