Even though I expect most Kelownians probably think this one is pretty great i'm not sure if this is a "great" Canadian bridge but I certainly think it's noteworthy since it just opened a few months ago; Kelowna's $179 million Bill Bennett Bridge:
I believe this bridge is the only record holder in Canada, thus possibly the
greatest bridge in Canada. The Hartland Bridge in Hartland, New Brunswick is the world's longest covered bridge at 1282 feet (391m) long: