OSM shows that the route has been twinned and realigned in the vicinity of SH 628, which I confirmed in the field yesterday. There's also some twinning going on west of there, close to Dorion and Ouimet, but it appears that they're just building the new eastbound lanes next to the current roadway. It was dark, so I couldn't tell if the carriageway I was traveling in had been rerouted. The pavement was new.