U.S. Route 31 in Alabama

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U.S. Route 31

US 31 highlighted in red
Route information
Maintained by ALDOT
Length386.449 mi[1] (621.929 km)
Existed1926 (1926)–present
Major junctions
South end US 90 / US 98 in Spanish Fort
Major intersections
North end I-65 / US 31 at Tennessee state line near Ardmore
CountryUnited States
CountiesBaldwin, Escambia, Conecuh, Butler, Lowndes, Montgomery, Elmore, Autauga, Chilton, Shelby, Jefferson, Blount, Cullman, Morgan, Limestone
Highway system
  • Alabama State Highway System
SR 30 SR 32
SR 2SR 3 SR 4
A sign designating an exit to US 31 on the concurrency of Interstates 20 and 59. It was replaced in 2020.

U.S. Route 31 (US 31) in Alabama runs north–south up through the heart of Alabama for 386.449 miles (621.929 km). US 31 proper begins at a junction with US 90 and US 98 in Spanish Fort and exits the state into Tennessee running concurrently with Interstate 65 (I-65) near Ardmore. US 31 enters the limits of major cities Montgomery, Birmingham, and Decatur. Throughout the state, with the exception of its concurrency with I-65 north of Athens, US 31 runs concurrently with the unsigned State Route 3 (SR 3). Today, aside from portions through major towns and cities, US 31 is largely a rural two-lane highway. The route has largely been supplanted by I-65, with which it has eight junctions and two concurrencies.

Route description

As with several other U.S. Routes in Alabama, U.S. Route 31 is mostly parallel to Interstate 65 throughout its journey across the state, servicing several towns and cities Interstate 65 bypasses.

Upon leaving US Route 90 and US Route 98 in Spanish Fort, the route heads due east towards the town of Stapleton, where it joins Alabama State Route 59 (Gulf Shores Parkway). About eleven miles later, the route leaves the Gulf Shores Parkway right-of-way and follows a town square around the Baldwin County Courthouse in Bay Minette. Leaving Bay Minette, the route winds northeast, passing fairly close to the northwestern corner of Florida. Upon crossing into Escambia County, the route winds east through Atmore before dipping south into Flomaton. Several hundred feet from the state line with Florida, the route gains U.S. Route 29, which joins it in a fifteen-mile concurrency northeast to Brewton. After losing U.S. 29 in Brewton, the route heads directly north, crossing the county line into Conecuh County. A few miles later, the route turns to be parallel with Interstate 65.

Reaching U.S. Route 84 just east of Interstate 65, U.S. Routes 31/84 travel into Evergreen, deviating from I-65. East of Evergreen, U.S. Route 84 heads southeast towards Andalusia, while U.S. Route 31 winds back north into Butler County. In far southeastern Butler County, the route engages in a fairly short concurrency with Alabama State Route 55. From the end of this concurrency in Georgiana north to Tennessee and beyond, U.S. 31 roughly parallels I-65. Heading northeast, U.S. 31 passes through Greenville. After cutting a corner of Lowndes County, U.S. 31 enters Montgomery County and crosses over I-65 for the first time.

After crossing U.S. Route 80 - which follows the historic Selma to Montgomery March Corridor - the route turns onto a beltway routing around western Montgomery, the capital of Alabama. At this point, it passes within a few miles of its child routes U.S. Route 331 and U.S. Route 231. After crossing the Alabama River, the route cuts a corner of Elmore County and enters Autauga County. In Prattville, the route has its junction with U.S. Route 82. It crosses Interstate 65 again a few miles later, quickly entering into Chilton County.

The route reaches its next concurrency with Alabama State Route 22, which it carries across Interstate 65 and into downtown Clanton, the geographical center of Alabama. After leaving SR-22, it heads north into Shelby County. After Calera, the route crosses I-65, serving Saginaw. It yet again crosses I-65 into the town of Alabaster. It enters Jefferson County a few miles later, home of Birmingham (AL).

In southern Jefferson County, the route reaches Hoover. At this point, the route crosses Interstate 459 - a partial beltway around Birmingham. In Vestavia Hills, a suburb of Birmingham, the route crosses Interstate 65 yet again, its last crossing in the county. Snaking up to Homewood, another suburb of Birmingham, the route reaches U.S. Route 280. At its interchange with U.S. 280, the route becomes the Red Mountain Expressway, descending down Red Mountain. Descending onto a viaduct above eastern Birmingham, the route has its junctions with U.S. Route 78 and U.S. Route 11 before reaching their Interstate parallels, the concurrent Interstate 20 and Interstate 59, which is also the western terminus of U.S. Route 280. At this junction, the route dips down out of the viaduct onto surface streets, passing through the northern suburbs of Birmingham. A few miles later, the route has its junction with Interstate 22; this is also a dual junction with Interstate 65, but not a crossing. At this point, the route leaves Birmingham.

Winding through Fultondale, Gardendale, Morris, and Warrior, the route serves the communities of hilly northern Jefferson County. After crossing the county line into Blount County, the route has a junction with Alabama State Route 160 immediately followed by a Parclo interchange with Interstate 65. At this point, U.S. Route 31 enters its first concurrency with Interstate 65. A few miles later in Smoke Rise, the route leaves Interstate 65 at a trumpet interchange. Following an arc, the route winds through a ridge cut, passes through Bangor, and crosses the Mulberry Fork of the Black Warrior River into Cullman County.

Immediately entering Garden City, the route slowly starts to arc back towards I-65. In Hanceville, the route passes Wallace State University and also passes within a few miles of the Shrine of the Most Blessed Sacrament. Winding north out of Hanceville, the route crosses into the city limits of Cullman. A few miles into the city limits, the route engages in a concurrency with Alabama State Route 69. About two miles later, it reaches U.S. Route 278, which is also the end of the SR-69 concurrency. Heading north out of town, the route crosses SR-157, the University of North Alabama Highway. After descending down into Morgan County, the route yet again crosses Interstate 65. Heading north, the route passes through Hartselle before serving Decatur. Just south of the Tennessee River, the route enters its next concurrency with U.S. 72 Alt.

Crossing the Tennessee River into Limestone County, the route has a Directional-T Interchange and loses U.S. 72 Alt, heading north out of the junction. Passing by Calhoun Community College, the route heads its way to Athens (AL). At this point, it has a Parclo Interchange with U.S. Route 72. A few miles later, it returns to a concurrent state with Interstate 65, which it follows all the way to one mile above the state line with Tennessee.

Major intersections

BaldwinSpanish Fort0.0000.000 US 90 (SR 16) / US 98 (SR 42 / Spanish Fort Boulevard)Southern terminus
SR 225 north
Southern terminus of SR 225

SR 181 south / CR 27 north (Jimmy Faulkner Drive) to I-10
Northern terminus of SR 181
SR 59 south – Loxley, Gulf Shores
Southern end of SR 59 overlap
Bay Minette20.44632.905

SR 59 north (McMeans Avenue) to I-65 / D'Olive Street
Northern end of SR 59 overlap; To I-65 signed northbound only
SR 287 north (Hand Avenue) / Hand Avenue
Southern terminus of SR 287
SR 21 (Main Street) to I-65 – Pensacola, Monroeville, Coastal Alabama Community College
Cities signed southbound only

US 29 south / SR 113 south (Sidney E. Manning Boulevard) – Pensacola
Southern end of US 29 / SR 113 overlap

SR 113 north to I-65
Northern end of SR 113 overlap

US 29 north (SR 15 north / Mildred Street) / SR 41 (South Nicholas Avenue) to I-65 – Andalusia, Repton
Northern end of US 29 overlap; southern terminus of SR 15; destinations signed southbound only

US 84 west (SR 12 west) to I-65
Southern end of US 84 / SR 12 overlap

SR 83 north (Cooper Street) to I-65 – Midway
Southern terminus of SR 83
US 84 east (SR 12 east) – Andalusia
Northern end of US 84 / SR 12 overlap
SR 55 south / South Garland Road – Andalusia, McKenzie
Southern end of SR 55 overlap
SR 55 north / Kokomo Road
Northern end of SR 55 overlap
Georgiana122.910197.804 SR 106 – Brantley, Georgiana
SR 185 north (Aztec Road) – Greenville
Southern end of SR 185 Truck overlap; southern terminus of SR 185; southern terminus of SR 185 Truck

SR 10 / SR 185 Truck north (Luverne Highway / East Commerce Street) to SR 10 Truck – Luverne, Greenville
Northern end of SR 185 Truck overlap
SR 185 south / CR 4
Northern terminus of SR 185
SR 97 north – Hayneville
Southern end of SR 97 overlap

SR 97 south to US 331
Northern end of SR 97 overlap
MontgomeryHope Hull174.046280.100 I-65 – Montgomery, MobileI-65 exit 164

US 80 (SR 8 / Selma Highway) / SR 21 south to I-65 – Selma
Southern end of SR 21 overlap; interchange on US 80

SR 21 north (West South Boulevard) to I-65 / I-85 / US 82 / US 231 / US 331 / Mobile Highway – Union Springs
Northern end of SR 21 overlap; destination signed southbound only
county line
Bridge over the Alabama River
ElmoreNo major intersections

US 82 (SR 6) to SR 14 / I-65
196.581316.366 I-65 – Montgomery, BirminghamI-65 exit 186
ChiltonMountain Creek208.882336.163
SR 143 south – Marbury
Northern terminus of SR 143
SR 22 east – Alexander City
Southern end of SR 22 overlap
Clanton217.466349.978 I-65 – Birmingham, MontgomeryI-65 exit 208

SR 22 west / SR 145 north (Fourth Avenue North) – Selma
Northern end of SR 22 overlap; southern terminus of SR 145
SR 191 south / CR 42 (Church Street) / Church Street – Maplesville
Northern terminus of SR 191
SR 155 north – Montevallo
Southern terminus of SR 155
SR 25 south / 18th Avenue
Southern end of SR 25 overlap

SR 25 north (Main Street) to I-65
Northern end of SR 25 overlap
245.674395.374 I-65 – Montgomery, BirminghamI-65 exit 231

SR 70 east / CR 22 west – Columbiana
Southern terminus of SR 70
Alabaster252.935407.059 I-65 – Birmingham, MontgomeryI-65 exit 238

SR 119 south (Montevallo Road) / CR 11 north (Simmsville Road) – Montevallo, Brierfield State Park
Southern end of SR 119 overlap

SR 119 north (Cahaba Valley Road) to I-65 / Commerce Parkway
Northern end of SR 119 overlap

SR 261 south (Helena Road) / CR 17 north (Valleydale Road) to I-65 – Helena
Northern terminus of SR 261
SR 150 west (John Hawkins Parkway) / Lorna Road
Eastern terminus of SR 150
264.277425.313 I-459 – Atlanta, Gadsden, TuscaloosaI-459 exit 13
HooverVestavia Hills line266.187428.386 I-65 / Lorna Road / Columbiana Road – Montgomery, BirminghamI-65 exit 252
Homewood270.698435.646 SR 149
270[3]430 Brookwood Medical Center DriveInterchange
270.698435.646 SR 149 (Shades Creek Parkway / Lakeshore Drive)Interchange
271.7[4]437.3Southern end of Red Mountain Expressway
US 280 east (SR 38 East) / Rosedale Drive – Sylacauga, Homewood
Southern end of US 280 overlap; interchange; destinations signed southbound only; western terminus of unsigned SR 38
Birmingham272.5[5]438.521st Avenue SouthSouthbound exit and northbound entrance
272.9[6]439.2Highland Avenue / Arlington AvenueNorthbound exit and southbound entrance
273.6[7]440.3University Boulevard
To US 78 (SR 4 / 3rd-4th Avenue South)
274.234441.337 US 11 (SR 7 / First Avenue North)Northbound exit only
274.4[8]441.62nd Avenue NorthNorthbound exit and southbound entrance; entrance ramp from 3rd Avenue North
I-20 / I-59 to I-65 – Atlanta, Gadsden, Tuscaloosa
No access from US 31 south to I-20 / 59 or from I-20 east / I-59 north to US 31 north; northern end of US 280 overlap; western terminus of US 280; I-20 / 59 exit 126A
275.1[9]442.7Northern end of Red Mountain Expressway

SR 378 west (Finley Boulevard) to I-65 / Finley Boulevard
Eastern terminus of SR 378

I-22 west – Memphis
Future interchange (under construction); future eastern terminus of I-22
279.5449.8 I-65 – Huntsville, BirminghamI-65 southbound exit 265B
I-422Future interchange exit 19; temporary western terminus of future I-422 (funded, to be completed by 2028)[10]
SR 160 east – Hayden
Western terminus of SR 160

I-65 south / Lester Doss Road / White Oak Trail – Birmingham
Southern end of I-65 overlap; I-65 exit 284; mileposts switch from SR 3 to I-65

I-65 north – Cullman, Decatur
Northern end of I-65 overlap; I-65 exit 287; mileposts switch from I-65 to SR 3

SR 91 (Arkadelphia Road) to I-65 / US 278 (SR 74) – Holly Pond, Colony
Destinations signed southbound only

SR 69 south (Cherokee Avenue SW) to I-65 / King Edward Street NW
Southern end of SR 69 overlap
US 278 (SR 74) / SR 69 north (Third Street SW)
Northern end of SR 69 overlap

SR 157 to I-65 / US 278 north (SR 74) – Gadsden, Moulton
Morgan337.073542.466 I-65 – Nashville, BirminghamI-65 exit 318; Nashville signed southbound only
SR 36 (Main Street West) to I-65 – Danville
SR 67 (Point Mallard Parkway / Beltline Road SW) to I-65 – Priceville, Tuscumbia

US 72 Alt. west (Corridor V / Wilson Street NE) / SR 20 / Wilson Street NE
Southern end of US 72 Alt. / SR 20 overlap; no access from US 31 north to US 72 Alt./SR 20 west
county line
358.731577.322Captain William J. Hudson "Steamboat Bill" Memorial Bridges over Tennessee River

US 72 Alt. east (Corridor V) / SR 20 east to I-65 / I-565
Northern end of US 72 Alt. / SR 20 overlap
Athens371.264597.491 US 72 (SR 2) – Athens, HuntsvilleInterchange
SR 251 north (Pryor Street) / Pryor Street – Ardmore
Southern terminus of SR 251

SR 99 north (East Elm Street) to SR 127 / Sportsplex Loop
Southern terminus of SR 99

I-65 south – Birmingham
Southern end of I-65 overlap; northern end of SR 3 overlap; northern terminus of SR 3; I-65 exit 354; mileposts switch from SR 3 to I-65
360.918580.841ElkmontI-65 exit 361
SR 53 south – Ardmore
Northern terminus of SR 53; I-65 exit 365

I-65 north / US 31 north – Nashville
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 2, 2020.
  2. ^ Google (July 3, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 3, 2020.
  3. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  4. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  5. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  6. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  7. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  8. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  9. ^ Google (July 4, 2020). "U.S. Route 31 in Alabama" (Map). Google Maps. Google. Retrieved July 4, 2020.
  10. ^ "Gov. Kay Ivey: Construction will resume soon on Northern Beltline". MSN. Retrieved 13 April 2023.

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