Northern Pacific Engineering Drawing: Floor Beam/Stringer Layout, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB018324
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: General Plan - Bent Details, Bridge 11.1 - Mercer Slough, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB017779
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Girder Details I, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB018326
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Girder Details I, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB020485
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Girder Details II, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB018327
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Girder Details II, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB020486
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Girder Elevations, Bridge 9.46 - I-90, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB018325
• Item
• undated

Part of Timothy Miller Collection