The Livermore Bridge is a bridge that carries US-431 over the Green River, near Livermore in McLean County, Kentucky where it crosses over two rivers (the Green and Rough Rivers), and passes over a separate county; the only known such occurrence in the world. A sliver of land that is part of Ohio County, Kentucky passes under the bridge. This was once printed in a Ripley's Believe It or Not strip, saying that people believe this makes the bridge the longest in the world.