Northern Pacific Engineering Drawing: Tie Plan, Bridge 96 (313), west of Colby, Montana, Line Segment 044, Milepost 96.95. Sheet 442 - 76, 1939.
Northern Pacific Engineering Drawing: Tie Plan, Bridge 96 (313), west of Colby, Montana, Line Segment 044, Milepost 96.95. Sheet 442 - 76, 1939.
Northern Pacific Engineering Drawing: Supports for Telegraph Post, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2, undated.
Northern Pacific Engineering Drawing: Summary of Reinforcement Bar, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2, undated.
Northern Pacific Engineering Drawing: Shop Plan - Spans, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Detail, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Detail, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Lateral, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 202 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.
Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 92 - Clark Fork River, west of Colby, Montana, Line Segment 044, Milepost 92.7. Sheet 2023 - 2A, undated.