Interstate 65 (I-65) is a major north–south Interstate Highway in the central United States. As with most primary Interstates ending in 5, it is a major crosscountry, north–south route, connecting between the Great Lakes and the Gulf of Mexico. Its southern terminus is located at an interchange with I-10 in Mobile, Alabama, and its northern terminus is at an interchange with US 12 (US 12) and US 20 in Gary, Indiana, just southeast of Chicago. I-65 connects several major metropolitan areas in the Midwest and Southern US. It connects the four largest cities in Alabama: Mobile, Montgomery, Birmingham, and Huntsville. It also serves as one of the main north–south routes through Nashville, Tennessee; Louisville, Kentucky; and Indianapolis, Indiana, each a major metropolitan area in its respective state.
Scottsboro is a city in and the county seat of Jackson County, Alabama, United States. The city was named for its founder Robert T. Scott. As of the 2020 census, the population of the city is 15,578.
Decatur is the largest city and county seat of Morgan County in the U.S. state of Alabama. Nicknamed "The River City," it is located in northern Alabama on the banks of Wheeler Lake along the Tennessee River. The population was 57,938 at the 2020 census.
U.S. Route 72 (US 72) is an east–west United States highway that travels for 317.811 miles (511.467 km) from southwestern Tennessee, throughout North Mississippi, North Alabama, and southeastern Tennessee. The highway's western terminus is in Memphis, Tennessee and its eastern terminus is in Chattanooga. It is the only U.S. Highway to begin and end in the same state, yet pass through other states in between. Prior to the U.S. Highway system signage being posted in 1926, the entire route was part of the Lee Highway.
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.
U.S. Route 431 (US 431) is a spur of U.S. Route 31. It currently travels for approximately 556 miles (895 km) from US 231/Alabama State Route 210 and US 231 Business and US 431 Bus. in Dothan, Alabama, to Owensboro, Kentucky, at US 60 and Kentucky Route 2831. The major cities US 431 connects to are Dothan and Huntsville, Alabama, Franklin and Nashville, Tennessee, and Owensboro, Kentucky.
The Tennessee Valley is the drainage basin of the Tennessee River and is largely within the U.S. state of Tennessee. It stretches from southwest Kentucky to north Alabama and from northeast Mississippi to the mountains of Virginia and North Carolina. The border of the valley is known as the Tennessee Valley Divide. The Tennessee Valley contributes greatly to the formation of Tennessee's three legally recognized sectors.
North Alabama is a region of the U.S. state of Alabama. Several geographic definitions for the area exist, with all descriptions including the nine counties of Alabama's Tennessee Valley region. The North Alabama Industrial Development Association also lists Cherokee, Cullman, Franklin, and Winston counties in the region. The Alabama Mountain Lakes Tourist Association expands the definition further to include Blount, Etowah, and Marion counties.
Interstate 565 (I-565) is a 22-mile-long (35 km) Interstate spur that connects I-65 in Decatur with U.S. Route 72 (US 72) in Huntsville in the US state of Alabama.
U.S. Route 431 (US 431), internally designated by the Alabama Department of Transportation (ALDOT) as State Route 1 (SR 1), is a major north–south state highway across the eastern part of the U.S. state of Alabama. Although US 431's south end is in Dothan, SR 1 continues south for about 13 miles (21 km) along US 231 to the Florida state line.
The "Steamboat Bill" Memorial Bridges are two bridges that span one of the widest points along the Tennessee River within the city of Decatur, Alabama, between Morgan County, and Limestone County. One is a cantilever truss, and the other is a reinforced concrete. The bridges carry US 31, US 72A, and State Route 20 from the intersection of Wilson Street, and 6th Avenue in northeast Decatur.
The Decatur, Alabama Metropolitan Statistical Area is a moderately urban region of North-Central Alabama. The 2020 Census put the population of the metropolitan area at 152,740, of which one-third resides within the boundaries of its core city, Decatur, Alabama, It is also considered to be part of the North, Northwest, and North-Central regions of Alabama.
State Route 20 (SR 20) is a 73.978-mile-long (119.056 km) state highway in the northern part of the U.S. state of Alabama. It travels from the Tennessee state line, where it continues as Tennessee State Route 69, northwest of Florence, east to Interstate 65 (I-65), east of Decatur. It crosses the Tennessee River at Florence and also at Decatur
Research Park Boulevard runs from I-565 to Bob Wade Lane on the north and west sides of Huntsville in Madison County, Alabama. Much of the route is a limited access highway, with the entire route planned to be limited access. Plans call for the road to be extended to create a near-complete bypass around Huntsville.
Memorial Parkway, also known as the Parkway, is a major thoroughfare in Huntsville, Alabama that carries over 100,000 vehicles on average a day. It, in whole or in part, follows U.S. Route 231, U.S. Route 431, U.S. Route 72, and State Route 53 through the Huntsville city limits. It is a limited access road through most of Huntsville city proper, providing exits to the frontage road which allows access to road intersections, as well as businesses and residences along the route. Both the limited access and frontage roads are referred to as Memorial Parkway. Originally constructed to bypass downtown Huntsville and officially opened on December 1, 1955, the highway is the major commercial thoroughfare through Huntsville, a status it has held since the mid-1960s.
Interstate 65 (I-65) meanders across 366 miles (589 km) of the Alabama countryside linking six of the state's 10 largest cities. The highway links together many important roadways that make commerce inside and outside of the state's boundaries possible. It starts at I-10 near Mobile. The route passes through the major cities of Montgomery, Birmingham, Decatur, Huntsville, and Athens before entering Tennessee in the north near the town of Ardmore, Alabama.
U.S. Route 231 (US 231) in Alabama runs north–south up through the eastern half of Alabama for 306.273 miles (492.899 km). US 231 enters the state from Florida south of Madrid and exits into Tennessee, running councurrently with US 431 north of Hazel Green. US 231 passes through the major cities of Dothan, Troy, Montgomery, and Huntsville.
The B. B. Comer Bridge, was a two-lane, 2,143-foot (653 m) long, Warren truss bridge spanning the Tennessee River along Alabama State Route 35 in Scottsboro, Alabama. The bridge was named after Alabama governor Braxton Bragg Comer, who served from 1907 to 1911. Construction of the bridge was carried out by the Kansas City Bridge Company for the Alabama State Bridge Corporation. Its construction commenced in 1929 and was complete by 1931. As of 2013, this was the only remaining bridge of the 15 memorial toll bridges constructed by the Alabama State Bridge Corporation.
State Route 133 (SR 133) is a 16.976-mile-long (27.320 km) mostly multi-lane state highway and is a primary artery through the Florence–Muscle Shoals metropolitan area in the northwestern part of the U.S. state of Alabama.
Governors Drive is a major east–west thoroughfare in Huntsville, Alabama. It follows U.S. Route 431 (US-431) in east Huntsville and State Route 53 (SR-53) in west Huntsville. Governors Drive is one of the main entrance points to the city from the east, carrying on average approximately 48,000 vehicles a day across Monte Sano Mountain.
US 231 
