Northern Pacific Engineering Drawing: Steel Spans 1/2/3, Bridge 150 - Petty Creek, Lothrop, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB020730
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Span Brace, Bridge 150 - Petty Creek, Lothrop, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB020731
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Span Brace, Bridge 150 - Petty Creek, Lothrop, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB020733
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Detail Spans, Bridge 150 - Petty Creek, Lothrop, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB020732
• Item
• undated

Part of Timothy Miller Collection