- US WaBuPNRA D0027-003-009-008-001-BB024894
- Item
- undated
Part of Timothy Miller Collection
Great Northern Engineering Drawing: Structural Steel Design Number 12, Bridge 12 - Swinomish Slough, west of Whitmarsh, Washington, Line Segment 409, Milepost 7.6. Sheet 313 - 2312 - 79, undated.