U.S. Route 231 in Alabama

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U.S. Route 231

US 231 highlighted in red
Route information
Maintained by ALDOT
Length306.273 mi[1] (492.899 km)
Existed1926 (1926)[2]–present
Major junctions
South end US 231 at Florida state line near Madrid
Major intersections
North end US 231 / US 431 at Tennessee state line near Hazel Green
CountryUnited States
CountiesHouston, Dale, Coffee, Pike, Montgomery, Elmore, Coosa, Talladega, Shelby, St. Clair, Blount, Cullman, Marshall, Morgan, Madison
Highway system
  • Alabama State Highway System
SR 229 SR 233

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.

From the Florida state line to Wetumpka, US 231 is a major four-lane divided thoroughfare that connects Central Alabama to the Florida Gulf Coast and Panama City. Between Wetumpka and Arab, excluding its overlap with US 280 between Sylacauga and Harpersville as well as portions through major towns, the road is largely rural and two lanes. Between Arab and the Tennessee state line, the route returns to a four-lane divided highway; the route is upgraded to a limited-access freeway and adjoining frontage roads named Memorial Parkway within the city of Huntsville.

During its route through the state, US 231 runs concurrently with three state highways. Between the Florida state line and southern Dothan as well as between Huntsville and the Alabama state line, US 231 runs concurrent with unsigned State Route 1 (SR 1). Between northern Dothan and Huntsville, the route is overlaid with SR 53, which is unsigned along its portion with US 231 but does have a signed segment north of Huntsville. Finally, while bypassing Dothan, US 231 is overlaid with the signed SR 210).

Route description

In Alabama, US 231 is paired with unsigned State Route 53 (SR 53) from Huntsville to Dothan.

The route passes through mostly straight terrain between the Tennessee state line and Meridianville, which is home to its junction with Bob Wade Lane, which eventually becomes SR 255.

The route descends down a slight hill and enters Huntsville. It becomes a freeway (Memorial Parkway). It junctions with US 72 east/ Sparkman Drive. After a short concurrency with US 72, it splits off onto University Drive. The route almost immediately junctions with Interstate 565 (I-565). It then junctions with a two-part interchange (Clinton Avenue/US 431 South/SR 53 North; Governors' Drive). Here, it gains SR 53 and loses US 431. The route continues south as a freeway until it reaches a specific point when it becomes a four-lane divided highway. It passes by Redstone Arsenal Gate 3's access road, Hobbs Road. The route continues south until it reaches the Clement C. Clay Bridge. It promptly crosses the Tennessee River into Morgan County.

The route eventually junctions with SR 36. It climbs up Brindlee Mountain into Union Hill. While climbing, the route makes a slight curve from the southwest to the southeast that is easily noticeable on road maps. It then passes through Morgan City and enters Marshall County. The route heads through mountainous terrain to Arab, which is home to its junction with SR 69. This junction is a diamond interchange and is directly above the line with Cullman County.

There are no major junctions in Cullman County.

It eventually crosses the line into Blount County. The road turns to the southwest and junctions with SR 67. It quickly junctions with US 278. Eventually, the route reaches Blountsville, and past Blountsville, the route junctions with SR 79 North. It reaches Cleveland and splits off from SR 79, which continues on its right of way to Birmingham. US 231 then junctions with SR 160 West, which continues on its next right-of-way. It passes through mountains until it reaches Oneonta, which is home to its junction with SR 75. The route climbs up a high hill and descends it, now crossing into St. Clair County.

The route eventually junctions with US 11 and then I-59. It enters Ashville. It junctions with SR 23 and US 411/SR 25 North. After a moderate concurrency with the two routes, US 411 and SR 25 turn southwest towards Leeds. US 231 heads directly south towards Pell City. The route heads through extremely hilly terrain as a two-lane and three-lane road. It reaches Coal City and junctions with SR 144. It continues down through the same terrain to I-20. It reaches US 78 and then SR 34.

US 231 reaches Shelby County. It parallels the Coosa River as it reaches Vincent, which is home to its next junction with SR 25. They continue south to Harpersville. SR 25 junctions with US 231 for the last time here as US 231 turns onto US 280.

The routes then cross into Talladega County. After a long journey to Sylacauga, the route turns off of US 280 at its junction with SR 21, which is a Diamond Interchange. The route enters Coosa County near this point.

In Coosa County, the route junctions with SR 22 in Rockford. It then enters Elmore County after a long journey south.

In Elmore County, there are no major junctions until it reaches SR 9. This point is the line with the city of Wetumpka. The route junctions with SR 14 and SR 170 north of the city. Within the city, the routes (SR 9, US 231, and SR 21) junction with SR 111. The routes then enter Montgomery County.

The routes junction with SR 152/Northern Boulevard, a half-beltway around Montgomery. The routes join the half-beltway. SR 152 ends at this point, though. The routes turn from east to south and junction with Atlanta Highway. The routes junction with I-85 and gain US 80. The routes turn to the west. US 231 and US 82 turn to the south. SR 21, US 80, and SR 9 continue onward with US 82 west to I-65, US 331, and US 31. US 82 and US 231 continue onward to Pike Road, which is not a road, but a town. South of here, US 82 turns off of US 231 and US 231 continues onward on a four-lane divided highway into Pike County.

There are no major junctions in Pike County until US 231 reaches Troy. Here, the route junctions with US 29, SR 10 west, and SR 87. US 231 continues southeast to Brundidge, which is home to its junctions with SR 10 east, SR 93, and SR 125. The route then cuts a corner of Coffee County.

There are no major junctions in Coffee County.

The route then enters into Dale County. The route junctions with SR 123 and SR 51 in the far-vicinity of Ariton, Alabama. The route reaches Ozark, which is home to its junctions with SR 27, SR 249, and once again SR 123. In Midland City, the route junctions with SR 134 and SR 605. The route has officially entered the Dothan Metropolitan Area.

In Houston County, the route has no major junctions until it reaches the Ross Clark Circle, which is US 84 and SR 210. This same junction is the junction with US 231 Bus. and the point where SR 53 ultimately leaves its state-wide concurrency with US 231. The route turns south onto the Ross Clark Circle and heads to the junction with US 84 Bus. East/US 84 West. Here, US 84 leaves the Ross Clark Circle. It then continues southeast until it reaches SR 52. SR 52 does not have a business route, unlike US 231 and US 84. The route turns to the full east and junctions with US 431 once again, for the first time since Huntsville, Alabama, alongside US 431 Bus. This junction marks the southern terminus of US 431. The route turns south off of the Ross Clark Circle with SR 1. It then heads south for the Florida state line. The route junctions with SR 109 in Hodgesville and SR 605 once again in Madrid, before finally crossing the state line into Campbellton, Florida.


When US 231 was first assigned along with the rest of the United States Numbered Highway System in 1926, the route ran only as far north as Montgomery. In 1952, the route was extended through the rest of the state and on to Indiana.[2]

The section of US 231 in Huntsville was built as a bypass around the downtown area. The original route ran up what is now Whitesburg Drive on the south side of the city, and Meridian Street in the north.

A portion on the north side of Brindlee Mountain, south of Huntsville, was damaged by a landslide in 2020. It was replaced by an elevated section.[3]

Major intersections

US 231 south – Panama City
Continuation into Florida
SR 605 north – Rehobeth, Taylor
Southern terminus of SR 605
7.52012.102Graceville (SR 109 south) / Eddins RoadNorthern terminus of SR 109

US 231 Bus. north (SR 1 north / South Oates Street) / US 431 north / SR 210 (SR 52 Truck / Ross Clark Circle) to US 84 east – Ashford, Headland
North end of SR 1 overlap; south end of SR 52 Truck / SR 210 overlap; southern terminus of US 231 Bus. / US 431; mileposts switch from SR 1 to SR 210
1.7932.886 SR 52 (Hartford Highway) – SlocombNorth end of SR 52 Truck overlap; western terminus of SR 52 Truck

US 84 west / US 84 Bus. east (SR 12 / West Main Street) – Enterprise
South end of US 84 overlap; western terminus of US 84 Bus.

US 231 Bus. south (SR 53 south / Montgomery Highway) / US 84 / SR 210 east (Ross Clark Circle) to US 431 north – Eufaula
North end of US 84 / SR 210 overlap; south end of SR 53 overlap; northern terminus of US 231 Bus.; mileposts switch from SR 210 to SR 53
DaleMidland City29.85748.050 CR 59 / SR 605 southNorthern terminus of SR 605; SR 605 is unsigned
30.59449.236 SR 134 – Midland City, Pinckard, NewtonInterchange
SR 123 south / CR 29 – Newton
South end of SR 123 overlap
SR 123 north (South Union Avenue) / Lakeview Road – Downtown Ozark, Ariton
North end of SR 123; Downtown Ozark signed northbound only, Artion southbound only
SR 27 north / SR 249 (Andrews Avenue) – Downtown Ozark, Fort Rucker
South end of SR 27 overlap
SR 27 south – Enterprise
North end of SR 27 overlap
53.91186.761 SR 51 – Ariton, Enterprise
SR 123 south – Ariton
Northern terminus of SR 123
CoffeeNo major intersections
SR 125 south – Elba
Northern terminus of SR 125
SR 93 north (East Main Street) – Brundidge
Southern terminus of SR 93

SR 10 east / CR 3316 (S.A. Graham Boulevard) – Brundidge, Clio, Camden, Butler
South end of SR 10 overlap. Mileposts switch from SR 53 to SR 10.
SR 87 south (Elba Highway) / SR 167 / South Brundidge Street – Elba, Enterprise
Northern terminus of SR 87 / SR 167

US 29 / SR 10 west (SR 15) – Luverne, Union Springs
Interchange. Mileposts switch from SR 10 to SR 53.
SR 94 west
Eastern terminus of SR 94

US 82 east (SR 6 east) – Union Springs, Eufaula
South end of US 82 / SR 6 overlap; mileposts switch from SR 53 to SR 6.

SR 271 north (Taylor Road) to I-85
Southern terminus of SR 271

US 80 west / US 82 west to I-65 (SR 6 west / SR 8 west / SR 9 south / SR 21 south / South Boulevard) / McGehee Road
North end of US 82 / SR 6 overlap; south end of US 80 / SR 8 / SR 9 / SR 21 overlap; mileposts switch from SR 6 to SR 8.

I-85 / US 80 east (SR 8 east) to I-65 – Montgomery, Atlanta
North end of US 80 / SR 8 overlap; I-85 exit 6; mileposts switch from SR 8 to SR 9
Atlanta HighwayInterchange via frontage roads; former alignment of US 80
SR 152 west (Northern Boulevard) to I-65 – Birmingham, Mobile
Interchange; Eastern terminus of SR 152
county line
114.857184.844Colonel William R. Lawley Memorial Bridge over Tallapoosa River
ElmoreWetumpkaSouth Main Street (SR 111 Truck south)South end of SR 111 Truck overlap
SR 170 east – Tallassee
Western terminus of SR 170; Tallassee signed northbound only

SR 14 / SR 111 Truck north (Tallassee Highway / Coosa River Parkway) – Tallassee, Prattville
North end of SR 111 Truck overlap

SR 9 north (Central Plank Road) – Santuck, Central
North end of SR 9 overlap; southern terminus of signed portion of SR 9; mileposts switch from SR 9 to SR 21
CoosaRockford188.890303.989 SR 22

US 280 east / SR 21 north (SR 38 east)
North end of SR 21 overlap; south end of US 280 / SR 38 overlap; mileposts switch to SR 38

SR 76 east (First Street SW) / CR 008 west (Childersburg-Fayetteville Highway)
South end of SR 76 overlap
SR 235 north (Coosa Pines Road) / River Run Road
Southern terminus of SR 235
county line
31.78251.148John A. Teague Bridge over Coosa River
SR 76 west (Klein Road) – Montevallo, Columbiana
North end of SR 76 overlap

US 280 west (SR 38 west) / SR 25 south – Birmingham, Wilsonville
North end of US 280 / SR 38 overlap; south end of SR 25 overlap; mileposts switch from SR 38 to SR 25

SR 25 north – Leeds
North end of SR 25 overlap; mileposts switch from SR 25 to SR 53
St. ClairPell City217.028349.273
SR 34 east (Mays Drive) / 19th Street South
Western terminus of SR 34
To US 78 (SR 4 / Cogswell Avenue)
220.360354.635 I-20 – Atlanta, BirminghamI-20 exit 158
SR 174 west – Odenville
Eastern terminus of SR 174
SR 144 east – Ragland, H. Neely Henry Dam
Western terminus of SR 144

US 411 south (SR 25 south) / CR 33 north
South end of US 411 / SR 25 overlap; mileposts switch from SR 53 to SR 25
SR 23 south (Sixth Avenue)
Northern terminus of SR 23

US 411 north (SR 25 north / Sixth Avenue) / SR 23
North end of US 411 / SR 25 overlap; mileposts switch from SR 25 to SR 53
239.907386.093 I-59 – Gadsden, BirminghamI-59 exit 166
241.036387.910 US 11 (SR 7) – Attalla, Birmingham

SR 75 north (Second Avenue East) to SR 132
South end of SR 75 overlap
SR 75 south (Second Avenue East) / Fifth Street North
North end of SR 75 overlap

SR 160 west / CR 1 south – Hayden, Warrior
Eastern terminus of SR 160
SR 79 south – Birmingham
South end of SR 79 overlap
SR 79 north – Guntersville
North end of SR 79 overlap
275.547443.450 US 278 (SR 74) – Gadsden, Cullman, Holly Pond
SR 67 north – Decatur
Southern terminus of SR 67
CullmanNo major intersections
MarshallArab286.206460.604 SR 69 – Guntersville, Arab, CullmanInterchange; Arab signed northbound only, Cullman southbound only
MorganLacey's Spring303.348488.191
SR 36 west – Hartselle
Eastern terminus of SR 36
county line
Huntsville306.534493.319Clement C. Clay Bridge over Tennessee River
MadisonBegin freeway south of Weatherly Road
Weatherly Road / Whitesburg DriveNorthbound exit and southbound entrance
Meadowbrook Drive westSouthbound exit and northbound entrance
Lily Flagg Road / Logan Drive / Byrd Spring RoadNorthbound exit and southbound entrance
Charlotte Drive / Logan Drive / Lily Flagg RoadSouthbound exit and northbound entrance
Martin Road / Golf Road
Airport Road / Jones Valley RoadJones Valley Road signed northbound only
Drake AvenueNorthbound exit and southbound entrance
Drake Avenue
Bob Wallace Avenue

US 431 south (SR 1 south / Governors Drive) / SR 53 north
North end of SR 53 overlap; south end of US 431 / SR 1 overlap; mileposts switch from SR 53 to SR 1
Clinton Avenue — Downtown
334.700538.647 I-565 (US 72 Alt.)I-565 exit 19A-B

To US 72 west (SR 2 west / University Drive) / University Drive
Cook Avenue / Oakwood AvenueNorthbound exit and southbound entrance

US 72 west (SR 2 west / University Drive) / University Drive
Southbound exit and northbound entrance; South end of US 72 / SR 2 overlap

US 72 east (SR 2 east / Sparkman Drive) / Max Luther Drive / Sparkman Drive
Northbound exit and southbound entrance; north end of US 72 / SR 2 overlap
Oakwood AvenueSouthbound exit and northbound entrance
East Service RoadNorthbound exit and southbound entrance

To US 72 east / Max Luther Drive / Sparkman Drive
Southbound exit and northbound entrance
End freeway south of Mastin Lake Road

US 231 north / US 431 north (SR 10 north)
Continuation into Tennessee
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b "Alabama Department of Transportation Milepost/General Highway Maps". Alabama Department of Transportation. Retrieved July 11, 2020.
  2. ^ a b Bear, Jake; et al. (June 5, 2020). "End of US highway 231". USEnds.com. Retrieved July 12, 2020.
  3. ^ WAFF. "U.S. 231 construction could be done in a few weeks". waff.com. WAFF.com. Retrieved 21 April 2021.

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