state. Mile marker 880 and its corresponding exit number in Orange, Texas, are the highest-numbered mile marker and exit on any freeway in North America. Since widening was completed in 2008, a portion of the highway west of Houston is now also believed to be the widest in the world, at 26 lanes when including feeders.

More than a third of I-10's length is located in Texas alone. El Paso, near the New Mexico state line, is 785 mi from the western