About half way between Indianapolis and St Louis.
At least the interstate highway is still open.
Nasty stuff.
Update at 7:30 p.m. – Effingham County authorities said people are now allowed back into their homes 22 hours after the crash that prompted an evacuation of Teutopolis.
This updating article has the timeline —
https://www.wcia.com/news/ammonia-leak-forces-evacuation-closes-route-40-in-effingham-county/
That’s the line that runs near me north of Indy near Frankfort