In Nov 2021 many sections of the KVR between Princeton and Brookmere were destroyed. The worst damage by far is between Princeton and Coalmont. The bridge just west of Princeton is damaged and several washouts further upstream make this section absolutely impassible.
There is a similar story for the section between Coalmont and Tulameen although parts of it can be cycled. Heading north from Tulameen, the trail is officially closed but there are no impassible (washout) sections so it can still be navigated.
From the old station at Thalia to Brookmere, the trail was already in very poor condition before 2021 but it is still possible to push through the worst sections and complete the route.