The roads getting to and out of Buder Park in the St Louis area are being redone, so the until the project is complete in July 2018 the roads will be changing. Attached is the map I found of all of the changes they are working. Open up the full image, zoom in and look at the arrows. The round-About coming into the park is complete. The big change that does not affect is there will be flyover to take south bound 141 traffic to the east bound I-44 traffic.
We will be posting additional updates as they happen on the Lafayette Esquadrille website
https://lafayetteesquadrillecl.wordpress.com/Fred