Completed in 1919, this great engineering feat connected the growing community along the Danforth with the downtown. Both rugged and beautiful, the structure featured a lower deck, in anticipation for an eventual cross-town subway, which opened years later.
The viaduct features two different sections: the much larger Don River section, and this one, which crosses Rosedale Valley. Though it was also built with the subway in mind, this section does not do so, because the curvature was too sharp for the 75-foot subway cars Toronto uses. A new bridge was built just north of it.
Before the opening of the Bloor-Danforth subway in 1966, streetcars operated on the road deck. When the subway opened, the subway used the lower deck. I have put track on the roadway (upper deck), as well as the lower deck, so use it as you see fit. To make the tracks disappear, just attach Auran's invisible track to the set you want to hide.