Burlington Northern Engineering Drawing: Deck Plan, Bridge 51 - Highway (formerly Northern Pacific), west of Childs, Montana, Line Segment 044, Milepost 52.0. Sheet 1060 - 45, 1974.

Burlington Northern Engineering Drawing: Tie Plan, Bridge 50 - Beaver Creek (formerly Northern Pacific), west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, 1980.

Northern Pacific Engineering Drawing: Abutments 1 and 4/Log Bore, Bridge 50 - Beaver Creek, west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, undated.

Northern Pacific Engineering Drawing: Bar List/Bend Diagram, Bridge 50 - Beaver Creek, west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, undated.

Northern Pacific Engineering Drawing: Deck Details, Bridge 50 - Beaver Creek, west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, 1955.

Northern Pacific Engineering Drawing: Detail of Approach, Bridge 50 - Beaver Creek, west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, undated.