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U.S. Route 231
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U.S. Route 231
U.S. Route 231 (US 231) is a north–south U.S highway that is a parallel route of US 31. It runs for 912 miles (1,468 km) from St. John, Indiana, at US 41 to south of US 98 in downtown Panama City, Florida. One of its most notable landmarks is the William H. Natcher Bridge, a 0.853 miles (1.373 km) long cable-stayed bridge that connects Rockport, Indiana, to Owensboro, Kentucky, spanning the Ohio River.
In Florida, US 231 is paired with unsigned State Road 75. The southern terminus is at Business US 98 (unsigned State Road 30) in downtown Panama City. The highway is carried by Harrison Avenue until its intersection with US 98. Continuing north, US 231 passes through Youngstown, Fountain, Alford, Cottondale, and Campbellton before entering Alabama. Major intersections include Business US 98, US 98, SR 77, SR 20, Interstate 10, US 90, SR 73, SR 273, and SR 2.
In Alabama, US 231 is an alternate north-to-south route to Interstate 65, the main north-to-south thoroughfare in the state. U.S. Route 231 serves the east-central part of the state, with I-65 further west and US 431 further east. While both US 231 and US 431 connect the major cities of Dothan and Huntsville, US 231 has a shorter route through fewer cities and terrain changes, avoiding the mountainous cities of Albertville, Gadsden, Oxford, and Heflin. However, there are some mountainous cities along the route, such as Arab and Oneonta.
U.S. Route 231 is divided along two-lane roads, three-laned roads, and four-laned undivided and divided highways. The entire stretch south of Montgomery is four-laned, mostly divided with some undivided stretches; as it is a critical connector in the National Highway System, which is a very important web of highways critical to U.S. infrastructure. The stretch between Arab and the state line is an almost entirely four-lane divided highway.
Through Huntsville, Alabama, the route functions as Memorial Parkway - the main north-to-south freeway through downtown. The road is a freeway with frontage roads and Texas U-Turns, with some stretches with six lanes plus a frontage road exit lane in each direction. In the medical district of Huntsville, the freeway gains US 431 and loses the SR 53 designation. The road widens to ten lanes on the south side of Interstate 565, with the gained lanes used as access lanes for US 72 or I-565. On the north side of I-565, the road once again goes to six lanes and an exit lane, which is carried along its concurrency with US 72. About a mile north of the second junction with US 72, the route loses its frontage roads and reverts to a four-lane divided highway.
In general, the route is an important connector between Dothan, Montgomery, and Huntsville, three of the most populous cities in the state.
US 231 enters Tennessee from Alabama in a concurrency with US 431 until it reaches Fayetteville. North of there it runs through Shelbyville and later passes through the eastern part of the Nashville metro area, passing through the cities of Murfreesboro and Lebanon. By the time it reaches Bethpage, it joins U.S. Route 31E in another concurrency to the northeast before finally crossing the Kentucky State Line north of Westmoreland. The route is approximately 121 miles (195 km) from Tennessee's northern border to its southern border.
US 231 parallels Interstate 65 before reaching Bowling Green. From Bowling Green, US 231 closely parallels I-165 (formerly the William H. Natcher Parkway) until it reaches Owensboro. At Owensboro, US 231 joins US 60 (also known as the Wendell H. Ford Expressway) around the city's east side, which it then follows to just north of Maceo. US 60 then leaves toward the east while US 231 turns to the north, leaving the state via the William H. Natcher Bridge across the Ohio River.
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U.S. Route 231
U.S. Route 231 (US 231) is a north–south U.S highway that is a parallel route of US 31. It runs for 912 miles (1,468 km) from St. John, Indiana, at US 41 to south of US 98 in downtown Panama City, Florida. One of its most notable landmarks is the William H. Natcher Bridge, a 0.853 miles (1.373 km) long cable-stayed bridge that connects Rockport, Indiana, to Owensboro, Kentucky, spanning the Ohio River.
In Florida, US 231 is paired with unsigned State Road 75. The southern terminus is at Business US 98 (unsigned State Road 30) in downtown Panama City. The highway is carried by Harrison Avenue until its intersection with US 98. Continuing north, US 231 passes through Youngstown, Fountain, Alford, Cottondale, and Campbellton before entering Alabama. Major intersections include Business US 98, US 98, SR 77, SR 20, Interstate 10, US 90, SR 73, SR 273, and SR 2.
In Alabama, US 231 is an alternate north-to-south route to Interstate 65, the main north-to-south thoroughfare in the state. U.S. Route 231 serves the east-central part of the state, with I-65 further west and US 431 further east. While both US 231 and US 431 connect the major cities of Dothan and Huntsville, US 231 has a shorter route through fewer cities and terrain changes, avoiding the mountainous cities of Albertville, Gadsden, Oxford, and Heflin. However, there are some mountainous cities along the route, such as Arab and Oneonta.
U.S. Route 231 is divided along two-lane roads, three-laned roads, and four-laned undivided and divided highways. The entire stretch south of Montgomery is four-laned, mostly divided with some undivided stretches; as it is a critical connector in the National Highway System, which is a very important web of highways critical to U.S. infrastructure. The stretch between Arab and the state line is an almost entirely four-lane divided highway.
Through Huntsville, Alabama, the route functions as Memorial Parkway - the main north-to-south freeway through downtown. The road is a freeway with frontage roads and Texas U-Turns, with some stretches with six lanes plus a frontage road exit lane in each direction. In the medical district of Huntsville, the freeway gains US 431 and loses the SR 53 designation. The road widens to ten lanes on the south side of Interstate 565, with the gained lanes used as access lanes for US 72 or I-565. On the north side of I-565, the road once again goes to six lanes and an exit lane, which is carried along its concurrency with US 72. About a mile north of the second junction with US 72, the route loses its frontage roads and reverts to a four-lane divided highway.
In general, the route is an important connector between Dothan, Montgomery, and Huntsville, three of the most populous cities in the state.
US 231 enters Tennessee from Alabama in a concurrency with US 431 until it reaches Fayetteville. North of there it runs through Shelbyville and later passes through the eastern part of the Nashville metro area, passing through the cities of Murfreesboro and Lebanon. By the time it reaches Bethpage, it joins U.S. Route 31E in another concurrency to the northeast before finally crossing the Kentucky State Line north of Westmoreland. The route is approximately 121 miles (195 km) from Tennessee's northern border to its southern border.
US 231 parallels Interstate 65 before reaching Bowling Green. From Bowling Green, US 231 closely parallels I-165 (formerly the William H. Natcher Parkway) until it reaches Owensboro. At Owensboro, US 231 joins US 60 (also known as the Wendell H. Ford Expressway) around the city's east side, which it then follows to just north of Maceo. US 60 then leaves toward the east while US 231 turns to the north, leaving the state via the William H. Natcher Bridge across the Ohio River.
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