ALL scheduled roads consist of (at least mostly) pavement. The only exception is the
optional "Dirty Sister" route, which is indicated on the map with a dotted black line over by Leakey.
There is one very short stretch on the red route where it is paved.. but only in the tire tracks. The middle of the road is not paved. I need to check that road before you get here.
As for the "automatic bike washes", we need a LOT more rain for those to be operational.
The biggest road hazards are gravel washout from driveways, and poorly made cattle guards. (You can ask MM what those can do to a rear shock absorber

)