Northern Pacific Engineering Drawing: Circular Pivot Pier, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 443 - 30, undated.
Northern Pacific Engineering Drawing: Circular Pivot Pier, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 443 - 30, undated.
Northern Pacific Engineering Drawing: Clutch Gasoline Engine Pin, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.
Northern Pacific Engineering Drawing: Detail of Bearing/Machinery, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.
Northern Pacific Engineering Drawing: Detail of Floor Beam, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 771 - 34, undated.
Northern Pacific Engineering Drawing: Detail of Hand Turn, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.
Northern Pacific Engineering Drawing: Detail of Operating Mechanism, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.
Northern Pacific Engineering Drawing: Detail of Pin Support, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.
Northern Pacific Engineering Drawing: Detail of Power House, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 771 - 34, undated.
Northern Pacific Engineering Drawing: Detail of Pulley Blocks, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 771 - 34, undated.
Northern Pacific Engineering Drawing: Detail of Strut, Bridge 68 - Wishkah River, west of Aberdeen Junction, Washington, Line Segment 402, Milepost 68.63. Sheet 428 - 3A, undated.