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 2,460.34 miles (3,959.53 km), 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.
U.S. Route 80 or U.S. Highway 80 (US 80) is a major east–west United States Numbered Highway in the Southern United States, much of which was once part of the early auto trail known as the Dixie Overland Highway. As the "0" in the route number indicates, it was originally a cross-country route, from the Pacific Ocean to the Atlantic Ocean. Its original western terminus was at Historic US 101 in San Diego, California. However, the entire segment west of Dallas, Texas, has been decommissioned in favor of various Interstate Highways and state highways. Currently, the highway's western terminus is at an interchange with Interstate 30 (I-30) on the Dallas–Mesquite city line. Its eastern terminus is in Tybee Island, Georgia, near the Atlantic Ocean. Between Jonesville, Texas, and Kewanee, Mississippi, US 80 runs parallel to or concurrently with Interstate 20. It also currently runs through Dallas, Texas; Shreveport, Louisiana; Jackson, Mississippi; Montgomery, Alabama; Columbus, Georgia; Macon, Georgia; and Savannah, Georgia.
U.S. Route 90 or U.S. Highway 90 (US 90) is an east–west major United States highway in the Southern United States. Despite the "0" in its route number, US 90 never was a full coast-to-coast route. It generally travels near Interstate 10 (I-10) and passes through the southern states of Texas, Louisiana, Mississippi, Alabama, and Florida. US 90 also includes part of the DeSoto Trail between Tallahassee and Lake City, Florida.
Interstate 110 (I-110) is an auxiliary Interstate Highway in the U.S. state of Louisiana. It runs 9.06 miles (14.58 km) in a north–south direction as a spur of I-10 in the city of Baton Rouge.
Interstate 10 (I-10), a major transcontinental Interstate Highway in the Southern United States, runs across the southern part of Louisiana for 274.42 miles (441.64 km) from Texas to Mississippi. It passes through Lake Charles, Lafayette, and Baton Rouge, dips south of Lake Pontchartrain to serve the New Orleans metropolitan area, then crosses Lake Pontchartrain and leaves the state.
U.S. Route 80 is a U.S. highway that begins in the state of Texas in Dallas at an interchange with I-30. US 80 runs in an east–west direction for most of its length from Dallas to Louisiana. Before the advent of the Interstate Highway System, US 80 through Texas was once a vital link in a major transcontinental highway with the national western terminus being in San Diego, California rather than Dallas. Since 1991, most of US 80 in Texas has been decommissioned in favor of I-10, I-20 and I-30 between the New Mexico state line and its current western terminus.
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