State roads in New Mexico, along with the Interstate Highway System, and the United States Numbered Highway System, fall under the jurisdiction of the New Mexico Department of Transportation (NMDOT). The U.S. state of New Mexico has 412 state roads, totaling 7,405.762 miles (11,918.419 km) that criss-cross the 33 counties of the state. Most highway numbers are one, two, or three digits long, however there are three highways that have four digit highway numbers. These highways are New Mexico State Road 1113 (NM 1113), NM 5001, and NM 6563.