Seattle, 1961: Ironworkers Construct the Ship Canal Bridge Bringing I-5 Over Portage Bay
The double-decker steel bridge was built in time for the 1962 World's Fair.
Ironworkers in this photograph were installing one of the final pieces of steel on the Ship Canal Bridge carrying Interstate Highway 5 over Portage Bay. The bridge was completed in 1961, but other parts of the I-5 complex in Seattle werent finished, so the span didnt open until December 1962. Since the bridge couldnt handle…