Photocopy of original construction drawing, dated 15 July 1936. (Original print in the possession of Army Corps of Engineers, Portland District, Portland, OR.) (M-5-12, Sheet No. 49) SPILLWAY DAM ELEVATION OF STRUCTURE 215 FT. DOWNSTREAM AND PLAN OF FOUNDATIONS. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR
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