As of fall 2020, of the 89 miles that are open and traversable between Osawatomie and Council Grove, about 59 miles have been developed with new surfacing, infrastructure, and safety improvements. Where open, it is well-maintained.  Several segments of the trail are unimproved or closed, but long-range plans call for it to be improved along its entire length. Improvements will be completed in segments as funds become available. Flint Hills Trail Project