The trestle bridge crosses the Seguin River, just upstream of the river’s mouth on Georgian Bay. Completed in 1907 by the Canadian Pacific Railway, the trestle is 1,695 feet (517 m) long and 105 feet (32 m) high. The first scheduled train passed over the span in 1908. It is the longest rail trestle east of the Rocky Mountains.
Today the trestle provides westbound rail traffic for both the Canadian Pacific Railway and the Canadian National Railway while all eastbound traffic uses Canadian National trackage.
The trestle bridge can be seen from almost everywhere in the downtown, and when you travel to the waterfront you will pass directly beneath it.