...and there are quite a few on the Hudson Greenway as well. The Park is essentially impassible to cyclists, but the Greenway worked fine earlier today.

There has been extensive storm damage and this ban may facilitate the cleanup and restoration of utilities and services and pumping out of cellars, etc.

I am hopeful that this ban may last just a few days

Yesterday, Saturday, Gerald and I took River Road south from just below the police station. As we emerged onto the road Andy Finkelstein on his road bike appeared, cycling up Alpine Hill. His assessment that River Road was not suitable for a road bike, but fine for a mtn bike proved to be correct . For the most part, a snow plow might prove the best means of clearing the road.

A few caveats:

Gates are closed in places, preventing motor traffic, as expected in the off season. 

Small limbs are fine on a mtn bike but there are stones/rocks of varying sizes strewn about. Otherwise, rolling over arboreal litter is mildly pleasant. 

2 sets of fallen trees in the southern third require bike hauling. All other downed trees can be circumvented.

We rode through White Plains up 22 to Whipporwill yestserday-  two opportunities to cyclocross through the woods to avoid blocked roads due to downed trees and powerlines.  After Mt. Kiscoe, the trees got the better of us, and we had to abort, turn around, and take the train back from Ossining.  I'd avoid anything other than the main roads for a while.