BikerBoy from Maryville, IL on 1/21/2020 8:34:40 AM:
Pam, the trail is closed approximately 10 miles east of Boonville due to the Salt Creek bridge being out. There is a detour around it, but it takes you on the shoulder of US Hwy 40, which a lot of people will find intimidating. There is another "unofficial" detour on some gravel farm roads that do not see much traffic, but of course are rougher. Both of these detours are well-documented on this site and you can find them from the main page or by reading some of the comments from the last few months.
Beyond the Salt Creek closure, I do not know the condition of the trail closer to Hartsburg.