File:Photocopy of original construction drawing, dated 23 July 1935. (Original print in the possession of U.S. Army Corps of Engineers, Portland District, Portland, OR.) (N-1-11, HAER ORE,26-BONV,2-D-29.tif
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![File:Photocopy of original construction drawing, dated 23 July 1935. (Original print in the possession of U.S. Army Corps of Engineers, Portland District, Portland, OR.) (N-1-11, HAER ORE,26-BONV,2-D-29.tif](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Photocopy_of_original_construction_drawing%2C_dated_23_July_1935._%28Original_print_in_the_possession_of_U.S._Army_Corps_of_Engineers%2C_Portland_District%2C_Portland%2C_OR.%29_%28N-1-11%2C_HAER_ORE%2C26-BONV%2C2-D-29.tif/lossy-page1-769px-thumbnail.tif.jpg?20140802044459)
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