The one thing with Barbour Fork is it has a seasonal gate... I believe the Clear Creek Ranger district keeps its status updated on their web site? The other two mentioned would only be closed by snow.. usually about the same time for Bill Moore, Slaughterhouse area can be off & on throughout the winter though.
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 06 TW200, 89 TW200, 09 TTR125, 07 TTR90, 07 CRF50