St. Johns Bridge Portland, Oregon

Timeline

3 Sep 1929: Construction begins on St. Johns Bridge
8 Apr 1930: Pouring of main river piers completed
1 Sep 1930: Main towers completed
2 Jan 1931: Cable and suspender rope completed on St. Johns Bridge
18 Apr 1931: Pouring of roadway slab completed on St. Johns Bridge
13 Jun 1931: St. Johns Bridge is opened to traffic