Northern Pacific Engineering Drawing: Viaduct Reinforcement Girder, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015544
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Viaduct Reinforcement Girder, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015543
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Typical Detail Tower Reinforcement, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015545
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Stress Sheet, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015540
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Stress Sheet, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015541
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Tower Girder, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015574
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015577
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 18 - Austin Gulch, West of Skyline, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015576
• Item
• undated

Part of Timothy Miller Collection