Quote:
Originally Posted by Innsertnamehere
This was probably the oldest bridge left, it was on one of the older stretches of the 401. The stretches through London were built in the 1960's from what I remember, the first part of the 401 opened in 1952, but completion didn't come until 1964, possibly even 2015 if you want to count the Windsor - Essex Parkway which will formally complete the 401 for its entire length.
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The 401 was completed in 1968.
Several original overpasses remain along Hwy 401 that are much older than this one. Most noteworthy are the ones the structures for Albert Street and Simcoe Street in Oshawa, which off the top of my head, were constructed during the early 1940s.
Virtually all of the structures on the Kingston By-pass portion of Highway 401 are still older, as are the structures on the Brockville by-pass.
Something that I think a lot of people don't know is that a lot of the 401 (though not all) opened as an at-grade highway, with overpasses and interchanges constructed after the highway was opened. Some sections even first opened as a two lane (one per direction) roads, and were later (within a few years) twinned. For example, the section of Highway 401 between Windsor (Provincial Road, old Hwy 98) and Tilbury opened as a four lane road with only two grade separations (at Belle River Road, and Highway 77) with the remaining roads crossing at-grade. The last overpass on that stretch wasn't completed until the late 1960s, almost two decades after the highway opened. Further east, the Tilbury to London portion of highway opened first as a two lane road, and was twinned several years afterwards.