Texas’ Katy Freeway Boasts 26 Lanes and Handles About 220,000 Vehicles Every Day — The Widest Highway on Earth Located in Houston, the legendary Katy Freeway in Texas holds the title of the widest highway in the world, stretching up to an astonishing 26 lanes at its widest point. Designed to manage one of the heaviest traffic volumes in the United States, the freeway carries approximately 220,000 vehicles every single day. Rather than being 26 continuous travel lanes, the Katy Freeway combines m