I don't know what caused the traffic because we never saw evidence of an accident or construction. The road was soaked though when we finally got moving and later we went through some horrendous downpours so maybe that's what caused it. That was the only real traffic we hit and it was on 95.
Good to hear (I guess), driving from Toronto to SSR next weekend, keeping an eye on construction and traffics, fingers crossed for clear sailing all the way.