Pretty darn good. You can actually feel (and hear) the difference when you cross the state line.
They seem to have given up on repairing potholes in Montreal and driving is a spine-jarring experience.
Montreal’s roads, as I assume you recognize, are fucking appalling. Though I am sometimes a motorist, I spend a lot of time on my bicycle an I frequently (maybe a couple of times every month or so) get pinch flats, even though I’m riding fairly high pressure tires (110 psi).
Pot holes that are 6 inches to a foot in diameter, an inch or two deep, and with very sharp edges, are not uncommon; given the right (or wrong, depending on your point of view) lighting, I would not be surprised if there weren’t a few pretzeled bike wheels and even damaged forks out there (30 years ago I bent a front rim out of shape going through an unavoidable puddle which hid such a pothole).
I also wouldn’t be surprised if there weren’t a few damaged car chassis out there as well.
It’s also exacerbated by corruption and incompetent administration to the extent that specific stretches of road can be partially closed for work a year or two following previous work.
I’ve lived in a variety of cities in Canada and there’s nothing remotely like Montreal for shitty roads.
I live in Dallas, and while the main roads are usually in fairly good repair, the side streets and residential streets have been neglected by the City for a long time, and are often bumpy, hastily patched, etc…
For a larger value of “local”, our highways here in Texas are generally stellar, even the farm-to-market roads in rural areas. The state highways are as well maintained as the interstates, if not better. It’s always kind of a let down to drive in other states where the highways aren’t so well maintained.