Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 3275 more...
- ItemBB033117 - Spokane, Portland and Seattle Railway Engineering Drawing: Floor Beams, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033118 - Spokane, Portland and Seattle Railway Engineering Drawing: Track Stringers and Struts, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033119 - Spokane, Portland and Seattle Railway Engineering Drawing: Center Floor Beam/Brackets, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033120 - Spokane, Portland and Seattle Railway Engineering Drawing: Plate of Foundations, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033121 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan Lock Gear, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033122 - Spokane, Portland and Seattle Railway Engineering Drawing: Shafts, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033123 - Spokane, Portland and Seattle Railway Engineering Drawing: Machinery Replacement, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, 1915
- ItemBB033124 - Spokane, Portland and Seattle Railway Engineering Drawing: Upstream Current E Rest, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033125 - Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Changes, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, 1909
- 634 more...