Found another one: A-30 near Bécancour has been truncated to BoulAlpDes. This is shown in Atlas des transports and
is supported by signage.
Speaking of Atlas des transports, it appears to have received an "
upgrade" (this is where the link on MTQ's site now goes; the old one no longer works). While it is much faster and more current than the old one (and can show other datasets like AADT), it now only shows roads maintained by MTQ, the federal government, or under public private partnerships (such as A-25 and A-30), even with respect to provincially numbered highways.