Diagrams 1 Willamette River Swing Truss Railroad Bridge, Portland Oregon

1910 WILLAMETTE BRIDGE, GENERAL MAP

1910 WILLAMETTE BRIDGE, GENERAL ELEVATION AND PLAN

1910 WILLAMETTE BRIDGE, DIAGRAM SHOWING RATE OF PROGRESS IN SINKING CAISSONS

1910 WILLAMETTE BRIDGE, WATER GAGE RECORD
