Photographic copy of historic photo, September 29, 1929 (original print filed in Record Group 115, National Archives, Washington, ). PERMEABILITY TEST BLOCK OF CONCRETE UNDER 340 HEAD WATER PRESSURE, SHOWING CALCIUM DEPOSIT ON DAMP FACE, WHICH LATER SEALED AND DRIED. - Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR

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Size: 5581px × 4478px
Photo credit: © Tango Images / Alamy / Afripics
License: Licensed
Model Released: No

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