Interstate 35W (abbreviated I-35W), an Interstate Highway, is the western half of Interstate 35 where it splits to serve different cities in Texas. I-35 splits into two branch routes, I-35W and I-35E at Hillsboro. I-35W runs north for , carrying its own separate sequence of exit numbers. It runs through Fort Worth before rejoining with I-35E to reform I-35 in Denton. It is the more direct route for long-distance expressway traffic, as is noted on signs on I-35 leading into the I-35W/I-35E splits. This is one of two pairs of suffixed Interstates that has not been eliminated; I-35 also splits into I-35W and I-35E in Minneapolis-St. Paul, Minnesota.