Assuming you mean 3 Points TH near Chilao to Hwy 2, then drop down to the Gab, then follow it to JPL:
Silver Moc from 3 Points to Bandido CG is ok. A few downed trees, and one eroded section. A bit overgrown in spots but not bad. It's worth riding and needs traffic. From Bandido all the way down to the very bottom at Alder Creek it is in pretty good shape. Maybe a couple downed trees the whole way. The singletrack climb from Alder up to Hwy 2 had lots of deadfall when I was there in May but it looks like a number of riders climbed it for LA tourist race in June and it only took them about 20min, so it can't be that bad.
The Shortcut singletrack dropping down from 2 to West Fork trail camp reportedly does not exist anymore down in the canyon. It barely existed before the fire. The Shortcut road had a big slide on it just above the stream crossing. Apparently someone dug a path across it so it should be passable now. As for Gabrielino, it has been worked on from West Fork CG to Valley Forge CG. You'll need to take Rincon Redbox FR for the other sections. Once at Redbox TH it's all good.