Didn't know that either; well we don't get over there much, surprised the invite didn't specify the location.
135th Street, good ol' 150 Highway, aka Outer Belt Highway; Enventually MoDOT will four lane our section (US 71 to M 291)like your side did.
Heh. I was wondering why they'd put it all the way over there ... Oh boy! Free filet mignon on Tuesday!