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
- 1083 more...
- ItemBB023132 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023133 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023134 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023135 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023136 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023137 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023138 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023139 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beam, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- ItemBB023140 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Web Plate Cutting, Bridge E66.6 - Salem Parkway, South of Hopmere, Oregon, undated
- 2826 more...