Spokane, Portland and Seattle Railway Engineering Drawing: Foundations, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80. Sheet N - 2 - 13, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Foundations, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80. Sheet N - 2 - 13, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Foundations, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80. Sheet N - 2 - 13, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Floor Beams and Connection Plate, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Erection Plan, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: End Sections Main Girder, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Draw Span, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80. Sheet RR - 440, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Cross Frames, Brackets, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Cranks, Links, etc., Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Center Sections Main Girder, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Center Floor Beam/Brackets, Bridge A94.9 - John Day River, west of Knappa, Oregon, Line Segment 440, Milepost 94.80, undated.