Northern Pacific Engineering Drawing: Proposed Extension Concrete Arch, Concrete Arch, Near Rathdrum, Idaho, undated

• US WaBuPNRA D0027-004-009-008-007-BB019747
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Proposed Multiplate Extension, Concrete Arch, Near Rathdrum, Idaho, undated

• US WaBuPNRA D0027-004-009-008-007-BB019748
• Item
• undated

Part of Timothy Miller Collection