Drove the road until we turned off onto BR1113. What seems to be the main entrance is blocked immediately after leaving the highway at (49.5715892, -121.1833308), but a connector road that turns right from the same turnoff is open. You can also access from a paved road running alongside the runaway lane just north of the main entrance at (49.5759949, -121.1803935). Most of the road is in decent condition but full of small cross ditches and a few steep sections. Looks like logging was done recently at the very end of the road. I will post updates for BR1113 and BR1113A with more specific information for those roads. Completely free of snow.
[From Jay Jay] - snow on the majority of the road and no gate at the base was noted. May be drive able to the very end in the summer time