The eastern portions of Interstate 10 in Texas are affectionately known as the Katy Freeway. Running from Houston suburb Katy through to downtown, the high volumes of traffic in the 4th most populous city in the U.S. necessitated a significant expansion in the first decade of the century. At its widest point I-10 is 26 lanes wide, with 12 main lanes, another 8 lanes of access roads to the sides, and six lanes for high capacity vehicles in the center. The right of way for this colossus of commuter construction is a tenth of a mile wide.
I-10 in Houston includes some mind boggling structures, including a “five-level stack” Interchange. At 115 feet tall and capable of handling half a million vehicles a day, this exchange looks as though someone had dumped a plate of noodles on Houston. In a nation fond of naming massive exchanges things like the High Five (Dallas) or The Judge Harry Pregerson Interchange (L.A.), this location is known simply as The Katy Stack.
Please note, this page was correct when written in February 2025.