A Danbury woman has been arrested by State Police for a wrong-way crash on I-84 early Monday morning.  State Police responded to the crash by exit 9, shortly after 12am.  A 42-year-old travelled east on the westbound side and collided head on with a U-Haul van driven by a 29-year-old New Milford man.  The woman was charged with operating under the influence, driving the wrong way and failing to maintain proper lane.  Neither driver was injured, but both vehicles had to be towed away.  The crash site was cleared about 4 hours later.