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

• US WaBuPNRA D0027-004-009-008-001-BB020859
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Trestle Details, Bridge 10 - Highway, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB016860
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Trestle Bridge, Bridge 11.1 - Mercer Slough, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB017777
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Trestle Bridge, Bridge 11.1 - Mercer Slough, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB017776
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Tie Layout and Other Details, Bridge 11.1 - Mercer Slough, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB017790
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Tie Framing Plan, Bridge 9.1 - Lk .Wash Boulevard, South of Wilburton, Washington, undated

• US WaBuPNRA D0027-004-009-008-001-BB018906
• Item
• undated

Part of Timothy Miller Collection

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

• US WaBuPNRA D0027-004-009-008-001-BB020861
• Item
• undated

Part of Timothy Miller Collection

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

• US WaBuPNRA D0027-004-009-008-001-BB018311
• Item
• undated

Part of Timothy Miller Collection