Great Northern Railway Historical Society Blueprint Collection JSBP8561, Tonga, Washington, undated.

• US MnSpGNR E0045A-003-009-008-001-JSBP8561
• Item
• undated

Part of Great Northern Railway- Blueprint-Authorization for Expenditure Collection

Great Northern Engineering Drawing: Truss Repairs, Bridge 418 - Foss River, Tonga, Washington, 1956

• US WaBuPNRA D0027-003-009-008-001-BB023459
• Item
• 1956

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Trolley Pole Brackets, Bridge 418 - Foss River, Tonga, Washington, 1900

• US WaBuPNRA D0027-003-009-008-001-BB023410
• Item
• 1900

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Trolley Pole Brackets, Bridge 418 - Foss River, Tonga, Washington, 1900

• US WaBuPNRA D0027-003-009-008-001-BB023411
• Item
• 1900

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Trolley Pole Brackets, Bridge 418 - Foss River, Tonga, Washington, 1900

• US WaBuPNRA D0027-003-009-008-001-BB023412
• Item
• 1900

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Trolley Pole Brackets, Bridge 418 - Foss River, Tonga, Washington, 1900

• US WaBuPNRA D0027-003-009-008-001-BB023413
• Item
• 1900

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Stress Diagram, Bridge 418 - Foss River, Tonga, Washington, 1900

• US WaBuPNRA D0027-003-009-008-001-BB023336
• Item
• 1900

Part of Timothy Miller Collection

Great Northern Engineering Drawing: Steel Repairs, Bridge 418 - Foss River, Tonga, Washington, 1963

• US WaBuPNRA D0027-003-009-008-001-BB023464
• Item
• 1963

Part of Timothy Miller Collection