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Geological Report on Damsites in the John Day Basin, Oregon

By
C. P. Holdredge
C. P. Holdredge
(U. S. Corps of Engineers, San Francisco, California)
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Published:
January 01, 1957

Abstract

Five damsites in the John Day Basin in southeastern Oregon were examined in the field as to their relative suitability. No exploratory trenching, drilling, or test pitting was carried on. The damsites are Canyon Creek, Fox Creek, Monument, Hall Hill, and Four Miles. They all lie in valleys carved in volcanic flows and tuffs. The main problems are strength of wall rock and foundations, location of undesirable tuff beds, leakage through cavernous lavas, faults, source of aggregate, and spillway problems.

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Contents

GSA Engineering Geology Case Histories

Engineering Geology Case Histories Number 1

Parker D. Trask
Parker D. Trask
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Geological Society of America
Volume
1
ISBN electronic:
9780813759265
Publication date:
January 01, 1957

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