After uncounted thousands of miles riding the trail I finally reached mile 0 today. Next, I guess, will be to ride the entire trail at once ...
As Jeff has noted new pavement is being laid between Hunter Mill Road and Vienna. Today they were paving between miles 13 and 12.5 so there's just a little way to go. But then the gravel shoulders have yet to be laid.
The fountain at Sunset Hills Road (near Mile Marker 16) is now operational.