Alabama State Route 21

State Route 21 (SR 21) is a 279-mile (449 km) state highway that extends from the Florida state line, near Atmore in Escambia County to Piedmont in Calhoun County. The route travels almost the entire length of the state from the northeast to the southwest. It is the longest signed state route in Alabama.

State Route 21 marker

State Route 21

Route information
Maintained by ALDOT
Length279.471 mi[1] (449.765 km)
Major junctions
South end SR 97 at the Florida state line
Major intersections US 31 in Atmore and in Montgomery
I-65 north of Atmore and again in Montgomery
US 84 in Monroeville
US 80 in rural Lowndes County and again in Montgomery
US 82 in Montgomery
US 331 in Montgomery
US 231 in Montgomery
Future I-685 / I-85 in Montgomery
US 280 in Sylacauga
I-20 in Oxford
US 78 in Oxford
US 431 in Anniston
North end US 278 at Piedmont
Location
CountryUnited States
StateAlabama
CountiesEscambia, Monroe, Wilcox, Lowndes, Montgomery, Elmore, Coosa, Talladega, Calhoun
Highway system
  • Alabama State Highway System
← SR 20→ I-22

Route description
View north from the south end of SR 21
A sign denoting Alabama State Route 21, located in Talladega.

Starting at the northern terminus of Florida State Road 97 at the Florida state line south of Atmore, the route travels north through Atmore, passing under an intersection with Interstate 65 at exit 57, then enters Monroe County and travels northeast through Frisco City and Monroeville and is concurrent with SR 47 for part of this section. SR 21 then once again becomes a standalone route passing through Beatrice and Oak Hill. In Lowndes County, SR 21 begins its first concurrency with US 80, and the two highways enter Montgomery, the state capital, from the southwest. SR 21 then diverges northeastward from US 80 for a short concurrency with US 31, then travels concurrently with US 80 once again (as well as US 82) around the Montgomery city center, diverging from US 82 at US 231 and traveling concurrently with US 231 northward to Sylacauga at an interchange with US 280. From Sylacauga, SR 21 turns northeastward toward Talladega. The route travels close to the Talladega National Forest and the Talladega Superspeedway. From here, SR 21 continues generally northeastward through the cities of Oxford, Anniston, and Jacksonville before terminating at an intersection with U.S. Highway 278 in Piedmont. The route is paved throughout and often multi-lane.

Major intersections
CountyLocationmi[1]kmDestinationsNotes
EscambiaAtmore0.0000.000
 SR 97 south – Pensacola		Florida state line
1.8883.038 US 31 (Nashville Avenue / SR 3) – Mobile, Brewton
Freemanville8.12213.071 I-65 – Mobile, MontgomeryI-65 exit 57
MonroeUriah22.37236.004
 SR 59 south – Stockton, Upper Delta Wildlife Management Area		Northern terminus of SR 59
Frisco City33.68054.203

 SR 21 Truck north (Bowden Street) / CR 18 (Wild Fork Road)
34.08054.846

 SR 21 Truck south (Highway 21 By-Pass)
​38.08761.295


 US 84 / SR 41 south / SR 47 Truck south (SR 12) – Grove Hill, Evergreen, Conecuh County		Southern end of SR 41/SR 47 Truck concurrency
Ollie38.51761.987


 SR 136 east to I-65 north		Western terminus of SR 136
Monroeville40.86465.764


 SR 21 Bus. north / SR 41 north (South Alabama Avenue) – Old Courthouse Museum		Northern end of SR 41 concurrency
43.12869.408


 SR 21 Bus. south / SR 47 south (Pineville Road) – Monroeville		Southern end of SR 47 concurrency; northern end of SR 47 Truck concurrency (it ends at this intersection)
Beatrice59.33695.492
 SR 265 north (Bryan Street) – Vredenburgh, Camden		Southern terminus of SR 265
Riley64.357103.573
 SR 47 north – Greenville		Northern end of SR 47 concurrency
WilcoxOak Hill78.965127.082 SR 10 – Camden, Greenville
​84.111135.364
 SR 28 west – Camden		Eastern terminus of SR 28
Elm Bluff85.183137.089
 SR 89 north – Selma		Southern terminus of SR 89
Lowndes​102.222164.510

 SR 263 south / CR 7 north – Greenville		Northern terminus of SR 263
Hayneville120.503193.931 SR 97 (Commerce Street) – Lowndesboro, Letohatchee
​127.864205.777
 US 80 west (SR 8) – Selma		Southern end of US 80/SR 8 concurrency
MontgomeryMontgomery138.043222.159


 US 31 south (SR 3) / US 80 east (SR 8) to I-65 – Mobile, Hope Hull		Interchange; southern end of US 31/SR 3 concurrency; northern end of US 80/SR 8 concurrency
139.276224.143
 US 31 north (West Boulevard / SR 3) / Selma-Mobile Highway – H. Councill Trenholm State Technical College		Northern end of US 31/SR 3 concurrency
139.836225.044


 I-65 / US 80 west / US 82 west (SR 6 west / SR 8 west) to I-85 – Birmingham, Atlanta, Selma, Mobile, Tuscaloosa		I-65 exit 168; southern end of US 80/US 82/SR 6/SR 8 concurrency
141.419227.592
 US 331 south (Court Street / SR 9) – Luverne		Northern terminus of US 331; southern end of SR 9 concurrency
145.315233.862

 US 82 east / US 231 south (Troy Highway / SR 6 east / SR 53 south) – Union Springs, Troy, Ozark, Dothan, H. Councill Trenholm State Technical College		northern end of US 82/SR 6 concurrency; southern end of US 231/SR 53 concurrency
148.423238.864

 I-85 / US 80 east (SR 8 east) to I-65 – Montgomery, Atlanta, Tuskegee		I-85 exit 6; north end of US 80/SR 8 concurrency
149.8[2]241.1Atlanta Highway - Faulkner UniversityInterchange; former US 80 east/SR 8 east
152.883246.041
 To I-65 (via SR 152 west) / Congressman William L. Dickinson Drive – Birmingham, Mobile, Airport, Maxwell AFB Gunter Annex, Alabama National Guard Headquarters		Interchange
ElmoreWetumpka
 To SR 111 / South Main Street		South end of SR 111 Truck concurrency
163.340262.870
 SR 170 east – Tallassee		Western terminus of SR 170
Company Street – Downtown Wetumpka Historical DistrictFormer SR 14 west
163.681263.419

 SR 14 / SR 111 Truck north (Coosa River Parkway / Tallassee Highway) – Prattville, Tallassee, Wetumpka Sports Complex		North end of SR 111 Truck concurrency
164.428264.621
 SR 9 north (Central Plank Road) – Santuck, Central		Northern end of SR 9 concurrency; southern end of signed portion of SR 9
CoosaRockford188.890303.989 SR 22
TalladegaSylacauga207.585334.076
 US 231 north / US 280 (SR 38 / SR 53) – Airport		Interchange; northern end of US 231/SR 53 concurrency
209.581337.288
 SR 148 east (3rd Street)		Western terminus of SR 148
Winterboro220.745355.255
 SR 76 west		Eastern terminus of SR 76
Talladega227.879366.736

 SR 275 north to SR 77		Southern terminus of SR 275
230.454370.880
 SR 77 north (East Street) – Talladega Superspeedway, International Motorsports Hall of Fame		Southern end of SR 77 concurrency
231.631372.774
 SR 77 south (Haynes Street) – Central Alabama Community College		Northern end of SR 77 concurrency
​234.805377.882
 SR 275 south – Sylacauga		Northern terminus of SR 275
CalhounOxford250.915403.809 I-20 – Birmingham, AtlantaI-20 exit 185
251.266404.373 US 78 (Hamric Drive / SR 4) – Heflin
Anniston254.373409.374
 SR 202 west		Eastern terminus of SR 202
257.596414.561 US 431 (Anniston Eastern Bypass / SR-1)Trumpet/cloverleaf interchange
Jacksonville267.730430.870
 SR 204 west (Nisbet Street NW) – Angel, Crystal Springs		Eastern terminus of SR 204
Piedmont279.471449.765 US 278 – Gadsden, Cedartown,Northern terminus of SR 21; Formerly an alignment of SR 200
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References
  1. "Mileposts/General Highway Maps". Alabama Department of Transportation. Archived from the original on July 27, 2011. Retrieved August 27, 2011.
  2. Google Maps directions
  • Rand McNally: The Road Atlas 2002, Rand McNally and Company 2001 ISBN 0-528-84446-6
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