Northern Pacific Engineering Drawing: Wiring Diagram, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, Line Segment 613, Milepost 0.6. Sheet 1080 - 8, undated.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1962.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1962.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1962.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1961.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1961.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 105 - Kalama River, south of Longview Junction, Washington, Line Segment 052, Milepost 105.6. Sheet 429 - 16, 1961.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, Line Segment 613, Milepost 0.6. Sheet 739 - 14, undated.

Northern Pacific Engineering Drawing: Tie Plan, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, Line Segment 613, Milepost 0.6. Sheet 739 - 14, 1950.