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Dorris

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Southern Pacific Railroad Natron Cutoff, Tunnel No. 17, Milepost 408, Dorris, Siskiyou County, CA



B&W Photos

HB169640
West Portal Of Tunnel 17, Contextual View To Northeast, 135mm Lens

HB169641
West Portal Of Tunnel 17, Oblique View To East-northeast, 135mm Lens.

HB169642
West Portal Of Tunnel 18, View To Northeast, 135mm Lens

HB169643
East Portal Of Tunnel 17, Contextual View To Southeast, 135mm Lens

HB169644
East Portal Of Tunnel 17, View To South, 135mm Lens.

HB169645
East Portal Of Tunnel 17, Oblique View To West-southwest, 90mm Lens


Data Pages


Photo Caption Pages


Item Title


Location
Milepost 408, Dorris, CA

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Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CA-218
Significance: The Southern Pacific Railroad Cascade Route, built as the Natron Cutoff between Black Butte, California and Natron, Oregon was one of a series of major rebuildings and realignments of the original Central Pacific Railroad. Begun in 1905 under railroad magnate E.H. Harriman to replace the original Central Pacific route over the Siskiyour Mountains into Oregon, the Natron Cutoff had to overcome both natural and political obstacles. Stalled by government anti-trust lawsuits against Harriman, by World War I and the ensuing federal takeover of the nation's railroads, the Natron Cutoff finally overcame the rugged Cascade Mountains of Oregon to reach completion in 1927, at an ultimate cost of nearly $40 million. For the purpose of the current project, the Natron Cutoff was found likely to be eligible for the National Register of Historic Places at the state level of significance under Criterion A for its significance in engineering, transportation history, and the economic history of central Oregon, and in the development of the West, and under criterion B for its association with E.H. Harriman. The Natron Cutoff's period of significance is 1905 to 1945, from the beginning of construction in 1905, through the years of its role in the economic development of the central Oregon, to the conclusion of the railroad's achievements in World War II. Built in 1909, Tunnel 17 is a contributive element of this property.

Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. West portal of Tunnel 17, contextual view to northeast, 135mm lens. The tunnel penetrates the toe of Dorris Hill, which rises to the left.
2. West portal of Tunnel 17, oblique view to east-northeast, 135mm lens.
3. West portal of Tunnel 18, view to northeast, 135mm lens. Note the use of concrete face and wingwalls, with dressed stone voussoirs, wingwall coping, parapet with stone belt course and coping, and coursed stone masonry slope protection flanking the portal.
4. East portal of Tunnel 17, contextual view to southeast, 135mm lens. This end of the tunnel was badly damaged during construction in April 1909 by a disgruntled worker who set off a heavy powder charge, injuring fellow workers and destroying a steam shovel.
5. East portal of Tunnel 17, view to south, 135mm lens.
6. East portal of Tunnel 17, oblique view to west-southwest, 90mm lens. This view shows to advantage the stepped concrete wingwalls and fitted stone masonry coping protection flanking the portal, features typical of the Southern Pacific Common Standard tunnels of this period.


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