http://mostateparks.com/advisory/62709/portions-katy-trail-state-park-closed-due-flooding
Right now there are several sections of the trail affected by the Missouri River flooding. The revised crest at Jeff City is for tonight or tomorrow morning and then a slow fall is predicted after that. MO State Parks does a pretty good job of keeping their advisories updated so I would keep checking the links I included in this and the previous post. Hope all works out for your trip.
Looks like Sedalia to Hermann is no longer flooded but may have debris on the trail bed from water being over it. Today's advisory shows the only flooding to be downstream closer to St. Louis.