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Northern Pacific Engineering Drawing: Detail of Section of Walls, Vader, Washington, undated
Northern Pacific Engineering Drawing: Detail of Section of Walls, Vader, Washington, undated
Northern Pacific Engineering Drawing: 1 - 70 Foot and 2 - 80 Foot Deck Plate Girder (DPG), Bridge 78 - Olequa Creek, South of Vader, Washington, undated
Northern Pacific Engineering Drawing: 1 - 70 Foot and 2 - 80 Foot Deck Plate Girder (DPG), Bridge 78 - Olequa Creek, South of Vader, Washington, undated
Northern Pacific Engineering Drawing: 10 Foot Arch, Culvert near Clarks Fork, Eddy, Montana, 1925
Northern Pacific Engineering Drawing: 10 Foot Arch, Culvert near Clarks Fork, Eddy, Montana, 1925
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG) Skewed, Bridge 92 - Clark Fork River, West of Colby, Montana, undated
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG) Skewed, Bridge 92 - Clark Fork River, West of Colby, Montana, undated
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG) Type 3, Bridge 92 - Clark Fork River, West of Colby, Montana, undated
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG) Type 3, Bridge 92 - Clark Fork River, West of Colby, Montana, undated
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG), Bridge 141 - Clark Fork River, West of Frenchtown, Montana, undated
Northern Pacific Engineering Drawing: 100 Foot Deck Plate Girder (DPG), Bridge 141 - Clark Fork River, West of Frenchtown, Montana, undated