Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally planned network that was laid out in 1956, and its last section was completed in 1990.
Interstate 10 (I-10) is the sout.hernmost transcontinental highway in the Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40 This freeway is part of the originally planned network that was laid out in 1956, and its last section was completed in 1990.