I saw that in GMSV, and it looked temporary to me, such as for construction.
Not so sure about satellite imagery; those could be those big posts next to the stop signs. I don't see evidence of the barricade.
And it's all easy enough to drive around
so I thought, why not go with the end from the shapefiles... still listed as public road for better or worse.
Yeah the route ends at that boat ramp.
TBKS1 was there in mid-June, and didn't mention the stop signs or barricade fwiw.
TBKS1, Do you have any more details on this?