Of note, this road might benefit from subdividing into segments as its conditions (and name) varies considerably. Most access comes via the Lodgepole/Harvey arriving at what this site labels km 37. Heading south from here, the road is in good, 2WD shape to ~km 65 and the junction with the Couldrey FSR. From the Couldrey FSR to the border it is Somewhat Degraded, especially the last couple km to the old border crossing where it gets muddy with some wet spots. South of the junction with the Kishinena FSR (km 53) its name changes to the Flathead Border FSR. Heading North from the Lodgepole, the road is called the Upper Flathead FSR and numbers count up. This road is also rougher with some rocky spots that have been underwater in recent high water events. The bridge at ~km 21.5 is in poor shape (see photos) but was crossed with a spotter. We left the road at ~km 17.5 to head up the McLatchie so cannot comment between there and Corbin, though I have heard its high clearance 4WD only.
Road is very poor and impassable to most vehicles south of Flathead Pass (10 KM from Corbin). The wood all goes to Elko, so no need for the connection to HWY 3. Agree with subdividing.