Caption: Canadian National 4-6-4 Hudson 5700 handles an eastbound passenger train through Port Credit, just about to cross the Highway 10 grade crossing on the Oakville Sub. The spur in the foreground crossed Highway 10 and lead south to the St. Lawrence Starch Company (it was later re-aligned to come off the Oakville Sub from the east due to underpass construction a few years later).

More at Port Credit:
Hwy 10 underpass construction in 1963: http://www.railpictures.ca/?attachment_id=21410
CNR 6070 at speed: http://www.railpictures.ca/?attachment_id=24345