Northern Pacific Engineering Drawing: Proposed Repair Pier/Abutment, Bridge 42 (65), West of Avon, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB014607
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Proposed Footwalk, Bridge 37 - Little Blackfoot Creek, Avon, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB014664
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Plan/Elevation Abutment, Bridge 38 - Little Blackfoot Creek, West of Avon, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB014666
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Plan/Detail Piers/Abutment, Bridge 41 (63), West of Avon, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB014619
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 42 (65), West of Avon, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB014612
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 38 - Little Blackfoot Creek, West of Avon, Montana, 1909

• US WaBuPNRA D0027-004-009-008-001-BB014665
• Item
• 1909

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 37 - Little Blackfoot Creek, Avon, Montana, 1909

• US WaBuPNRA D0027-004-009-008-001-BB014662
• Item
• 1909

Part of Timothy Miller Collection