June 18, 2020:
A new sinkhole has opened next to and under the trail in addition to an older sinkhole next to the trail a 1/4 mile or so to the south near Hilltop Road. The older sinkhole is being funded and scheduled for repairs to be finished by mid-September. Repairs for the new sinkhole are neither funded nor scheduled.
This portion of the Centennial Trail, between Arlington and Getchell, was closed June 18th. There is presently no reopening date and no safe detour between Hilltop Rd and Wade Rd. 67th Ave NE parallels the trail in this area. However, 67th Ave NE is rather intimidating with 50 mph speed limits, is narrow, no shoulders, and plenty of motor traffic.