Georgia State Route 21
Route information | ||||
---|---|---|---|---|
Maintained by GDOT | ||||
Length | 84.4 mi[1] (135.8 km) | |||
Existed | 1919[2]–present | |||
Major junctions | ||||
South end | SR 204 in Savannah | |||
North end | US 25 / SR 121 north of Millen | |||
Location | ||||
Country | United States | |||
State | Georgia | |||
Counties | Chatham, Effingham, Screven, Jenkins | |||
Highway system | ||||
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State Route 21 (SR 21) is an 84.4-mile-long (135.8 km)
SR 21 formerly had its northern terminus at the
The highway is part of the
Route description
SR 21 begins at an
SR 21 continues north, leaving
Tom Triplett Parkway
The Tom Triplett Parkway is a section of SR 21 located in Port Wentworth on the west side of the Savannah metropolitan area.[3]
It stretches from the Chatham–Effingham county line (roughly the Lake Cherie Road intersection) to the Garden City–Port Wentworth city line (roughly the SR 307 intersection).
In 2000, the Georgia General Assembly passed a resolution[3] to designate this portion of SR 21 in honor of Tom Triplett,[4] a Democrat who served as Mayor of Port Wentworth and as a State Representative for 18 years. Tom Triplett died in 2006, at 71 years of age.
National Highway System
The entire length of SR 21 is part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility, and defense.[5][6]
History
1920s and 1930s
SR 21 was established at least as early as 1919 on its current path from Savannah to Millen, and traveled north-northwest to end in
1940s and 1950s
Between the beginning of 1945 and November 1946, US 80/SR 26 was shifted onto a concurrency with US 17/SR 21/SR 25 from Savannah to southeast of
1960s
Between July 1957 and June 1960, US 25 was rerouted in
1970s
In 1970, SR 26 Loop was proposed to be extended from Augusta Avenue north-northeast and west-northwest to US 17/US 80/SR 21/SR 25/SR 26. SR 73 Loop in the Sylvania area was completed, with US 301 designated on it. The former path of US 301 through the city, on SR 73, was redesignated as
1980s
In 1981, the northern terminus of SR 21 was truncated to the main part of Millen.
1990s to present
In 1990, the unnumbered road south of Sylvania was designated as
On May 2, 2018, a Lockheed WC-130H transport aircraft of the Puerto Rico Air National Guard crashed and impacted SR 21, near Port Wentworth. A section of SR 21 at the impact site was closed immediately after the incident, and the Air National Guard has provided funds for repairs and cleanup.[50] As of May 2018[update], traffic is diverted around the crash site to an adjacent road through a temporary detour, until the Georgia Department of Transportation finishes repairs.[51]
Failed Proposals
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Location | Savannah, Georgia–Knoxville, Tennessee |
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SR 21, as part of the Savannah River Parkway, was proposed to become part of I-3.
Major intersections
County | Location | mi[1] | km | Destinations | Notes | ||
---|---|---|---|---|---|---|---|
Hunter AAF | Southern terminus; eastern terminus of SR 204 | ||||||
0.4 | 0.64 | Montgomery Street | Eastern terminus of I-516; south end of I-516 concurrency | ||||
see I-516 | |||||||
Garden City | 7.0 | 11.3 | SR 25 north to US 80 (Bay Street) – Garden City | Western terminus of I-516; I-516 exit 8; north end of I-516 and SR 25 concurrencies | |||
7.8 | 12.6 | SR 21 Spur east (Brampton Road) | Western terminus of SR 21 Spur | ||||
SR 21 Alt. north / SR 307 (Bourne Avenue) | Southern terminus of SR 21 Alt. | ||||||
11.7 | 18.8 | SR 30 east (Bonny Bridge Road) – Savannah National Wildlife Refuge | Southern end of SR 30 concurrency | ||||
12.2 | 19.6 | Northern terminus of SR 21 Alt.; southern terminus of SR 17 at the Sonny Dixon Interchange | |||||
14.4 | 23.2 | I-95 exit 109 | |||||
15.0 | 24.1 | SR 30 west (Piedmont Avenue) to SR 17 – Guyton | Northern end of SR 30 concurrency | ||||
New Ebenezer Retreat Center | Western terminus of SR 275 | ||||||
SR 21 Bus. north (South Laurel Street) – Springfield | Southern terminus of SR 21 Bus. | ||||||
30.3 | 48.8 | SR 119 (Madison Street) – Guyton, Springfield, Old Jail Museum | |||||
| 31.3 | 50.4 | SR 21 Spur south – Springfield | Northern terminus of SR 21 Spur | |||
| 48.4 | 77.9 | SR 21 Bus. north (Savannah Highway) – Newington | Southern terminus of SR 21 Bus. | |||
Screven | Newington | 49.0 | 78.9 | SR 24 (Oliver Highway) – Oliver, Waynesboro | |||
50.1 | 80.6 | SR 21 Bus. south (Savannah Highway) | Northern terminus of SR 21 Bus. | ||||
| 61.9 | 99.6 | SR 21 Bus. north (South Main Street) – Sylvania | Southern terminus of SR 21 Bus. | |||
| 63.9 | 102.8 | US 301 south / SR 73 south – Statesboro | South end of US 301 and SR 73 concurrencies | |||
| 64.0 | 103.0 | SR 73 Loop begins – Sylvania | North end of SR 73 concurrency; south end of SR 73 Loop concurrency | |||
North end of US 301 and SR 73 Loop concurrencies; northern terminus of SR 21 Bus. | |||||||
Jenkins | | 81.4 | 131.0 | SR 67 south – Millen | Northern terminus of SR 67 | ||
| 83.0 | 133.6 | SR 23 (Sardis Road) – Millen, Sardis | ||||
Millen | 84.4 | 135.8 | US 25 / SR 121 – Millen, Waynesboro, Magnolia Springs State Park | Northern terminus | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Special routes
Garden City spur route
Location | Garden City |
---|---|
Length | 1.2 mi[52] (1.9 km) |
Existed | 1960[22][23]–present |
State Route 21 Spur (SR 21 Spur) is a 1.2-mile-long (1.9 km) spur route that exists entirely within Chatham County. Part of the highway is in the city limits of Garden City. It is known as Brampton Road for its entire length.
It begins at an intersection with the SR 21 mainline (Augusta Road) in the northeastern part of Garden City, just northwest of the western terminus of Interstate 516 (I-516). It travels to the northeast and intersects SR 25 (Coastal Road), on the edge of the city limits. The highway continues to the northeast and reaches its eastern terminus, Georgia Ports Authority's Gate #2, and the entrance to GAF Materials Corporation, on the Savannah River.[52]
The path of SR 21 Spur east of the intersection with SR 25 is included as part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility.[5]
Between July 1957 and June 1960, SR 21 Spur was established on its current path.[22][23]
The entire route is in Chatham County.
Location | mi[52] | km | Destinations | Notes | |
---|---|---|---|---|---|
Garden City | 0.0 | 0.0 | SR 21 (Augusta Road) – Savannah, Port Wentworth | Western terminus | |
0.4 | 0.64 | SR 25 (Coastal Road) – Savannah, Port Wentworth | Former US 17 | ||
| 1.2 | 1.9 | Georgia Ports Authority's Gate #2; entrance to GAF Materials Corporation | Eastern terminus at Port of Savannah | |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Port Wentworth alternate route
Location | Port Wentworth |
---|---|
Length | 3.5 mi[53] (5.6 km) |
Existed | 2017[54]–present |
State Route 21 Alternate (SR 21 Alt.) is an
Between the beginning of 2008 and the beginning of 2013, the roadway that would eventually become SR 21 Alt. was proposed as SR 1234 along roughly this same path.[55][56] In 2016, this roadway was completed.[56][57] In May 2017, Savannah and nearby Pooler requested that the Jimmy DeLoach Connector be included into the state highway system.[54]
The entire route is in Chatham County.
Location | mi[53] | km | Destinations | Notes | |
---|---|---|---|---|---|
Garden City | 0.0 | 0.0 | SR 21 (Augusta Road) / SR 307 south (Bourne Avenue) to I-95 – Savannah, Port Wentworth | Southern end of SR 307 concurrency; southern terminus | |
| 0.4 | 0.64 | SR 307 north (Bourne Avenue) / Jimmy DeLoach Connector begins | Northern end of SR 307 concurrency; southern terminus of Jimmy DeLoach Connector | |
Port Wentworth | 0.9– 1.3 | 1.4– 2.1 | Grange Road | Interchange | |
3.0– 3.2 | 4.8– 5.1 | SR 17 north (Jimmy DeLoach Parkway west) to I-95 Sonny Dixon Interchange to SR 21 (SR 30) / Jimmy DeLoach Connector ends | Southern terminus of SR 17; northern terminus of Jimmy DeLoach Connector; eastern terminus of Jimmy DeLoach Parkway; Sonny Dixon Interchange | ||
3.5 | 5.6 | SR 21 (SR 30) to I-95 | Northern terminus; Sonny Dixon Interchange | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Chatham County spur route
Location | Chatham County |
---|---|
Existed | 1946[15][16]–1960[22][23] |
State Route 21 Spur (SR 21 Spur) was a spur route of SR 21 that existed in the northern part of Chatham County. Between the beginning of 1945 and November 1946, it was established from SR 21/SR 30 north-northwest of Industrial City Gardens (the former name of Garden City) east to US 17/SR 25 north of the city.[15][16] Between July 1957 and June 1960, it was decommissioned.[22][23]
The entire route was in Chatham County.
Location | mi | km | Destinations | Notes | |
---|---|---|---|---|---|
| SR 21 / SR 30 | Western terminus | |||
| US 17 / SR 25 | Eastern terminus | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Springfield business loop
Location | Springfield |
---|---|
Existed | 2009[58][59]–present |
State Route 21 Business (SR 21 Bus.) is a
The entire route is in Springfield, Effingham County.
mi | km | Destinations | Notes | ||
---|---|---|---|---|---|
SR 21 (Springfield Bypass) – Rincon, Newington | Southern terminus | ||||
SR 119 south (Madison Street) – Guyton | Southern end of SR 119 concurrency | ||||
Northern end of SR 119 concurrency; northern terminus of SR 21 Bus.; southern terminus of SR 21 Spur; former SR 21 north | |||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Springfield spur route
Location | Springfield |
---|---|
Length | 0.5 mi[61] (800 m) |
Existed | 2009[58][59]–present |
State Route 21 Spur (SR 21 Spur) is a 0.5-mile-long (0.80 km) spur route of SR 21 that exists entirely within the central part of Effingham County. The southern terminus of the highway is in the city limits of Springfield. It is known as Old Tusculum Road for its entire length.
It begins at an intersection with SR 21 Bus./SR 119 (North Laurel Street). SR 21 Spur heads to the west-northwest. About 2,500 feet (760 m) later, it meets its northern terminus, an intersection with the SR 21 mainline.[61]
The entire length of SR 1 is part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility, and defense.[6]
Between the beginning of 1997 and the beginning of 2010, it was established from the northern terminus of
The entire route is in Effingham County.
Location | mi[61] | km | Destinations | Notes | |
---|---|---|---|---|---|
, Effingham Hospital | Southern terminus of SR 21 Spur; northern terminus of SR 21 Bus.; former SR 21 south | ||||
| 0.5 | 0.80 | SR 21 (Springfield Bypass) / Old Tusculum Road west – Rincon, Newington | Northern terminus | |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Newington business loop
Location | Newington |
---|---|
Length | 1.7 mi[62] (2.7 km) |
Existed | 2010[48][49]–present |
State Route 21 Business (SR 21 Bus.) is a business route of SR 21 that is entirely within the southeastern part of Screven County. Most of the route is in the city limits of Newington. It is known as Savannah Highway for its entire length.
It begins at an intersection with the SR 21 mainline just southeast of Newington. It travels to the northeast and curves to the northwest to enter the town. It intersects SR 24. It has a brief section that is outside of the city limits before curving to the east and re-entering the city limits. Immediately after, it meets its northern terminus, another intersection with the SR 21 mainline.[62]
SR 21 Bus. is not part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility.[6]
At least as early as 1919, the SR 21 mainline was established on this path.[2] In 1934, this path had a "completed hard surface".[63][64] In 2010, the path of SR 21 was shifted southwestward. Its former path was redesignated as SR 21 Bus.[48][49]
The entire route is in Screven County.
Location | mi[62] | km | Destinations | Notes | |
---|---|---|---|---|---|
| 0.0 | 0.0 | SR 21 – Springfield, Sylvania | Southern terminus | |
Newington | 0.9 | 1.4 | SR 24 (Oliver Highway/Newington Highway) – Statesboro, Waynesboro | ||
1.7 | 2.7 | SR 21 – Springfield, Sylvania | Northern terminus | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Sylvania business loop
Location | Sylvania |
---|---|
Length | 2.9 mi[65] (4.7 km) |
Existed | 1993[42][43]–present |
State Route 21 Business (SR 21 Bus.) is a 2.9-mile-long (4.7 km) business route that exists entirely within the central part of Screven County. All but the southernmost 0.5 miles (0.80 km) of the route travels within the city limits of Sylvania. It is the former alignment of SR 21 through Sylvania.[2][43]
It begins at an
SR 21 Spur is not part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility.[6]
At least as early as 1919, SR 21 was established on this path.
The entire route is in Screven County.
Location | mi[65] | km | Destinations | Notes | |
---|---|---|---|---|---|
| 0.0 | 0.0 | SR 21 (Perimeter Road/Savannah Highway) – Springfield | Southern terminus | |
Sylvania | 1.6 | 2.6 | SR 73 north (North Main Street) – Allendale | South end of SR 73 concurrency; on one-way street around town square | |
1.7 | 2.7 | Maple Street north | Former SR 21 Conn. | ||
2.0 | 3.2 | SR 73 south (West Ogeechee Street) – Statesboro | North end of SR 73 concurrency | ||
2.9 | 4.7 | , Screven County Industrial Park, Screven County Recreation Department | Northern terminus | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Sylvania connector route
Location | Sylvania |
---|---|
Existed | 2009[67][68]–2012[68][69] |
State Route 21 Connector (SR 21 Conn.) was a short
The entire route was in Sylvania, Screven County.
mi | km | Destinations | Notes | ||
---|---|---|---|---|---|
SR 21 / SR 73 (West Ogeechee Street) | Southern terminus | ||||
US 301 Bus. / SR 73 (North Main Street) | Northern terminus | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
See also
References
- ^ a b Google (November 11, 2023). "Overview map of SR 21" (Map). Google Maps. Google. Retrieved November 11, 2023.
- ^ a b c d e f State Highway Department of Georgia (1920). System of State Aid Roads as Approved Representing 4800 Miles of State Aid Roads Outside the Limits of the Incorporated Towns (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b House Resolution 756 - Designate Tom Triplett Parkway Archived 2007-08-22 at the Wayback Machine, First Reader Summary, May 1, 2000
- ^ Political icon Tom Triplett dead at 71 Archived 2007-12-08 at archive.today, Larry Peterson, Savannah Morning News, June 24, 2006
- ^ a b National Highway System: Savannah, GA (PDF) (Map). Federal Highway Administration. May 9, 2019. Retrieved September 17, 2019.
- ^ a b c d National Highway System: Georgia (PDF) (Map). Federal Highway Administration. May 8, 2019. Retrieved September 17, 2019.
- ^ a b State Highway Department of Georgia (1921). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (October 1926). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (June 1930). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (November 1930). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (January 1, 1937). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (April 1, 1937). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b State Highway Department of Georgia (October 1, 1937). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- OCLC 5673161. Retrieved June 17, 2017.
- ^ OCLC 5673161. Retrieved June 17, 2017.
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to November 7, 1946.)
- OCLC 5673161. Retrieved June 17, 2017. (Corrected to April 1, 1949.)
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to August 1, 1950.)
- OCLC 5673161. Retrieved June 17, 2017. (Corrected to January 1, 1952.)
- OCLC 5673161. Retrieved June 17, 2017. (Corrected to June 1, 1954.)
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to June 1, 1955.)
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to July 1, 1957.)
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to June 1, 1960.)
- ^ OCLC 5673161. Retrieved June 17, 2017. (Corrected to June 1, 1963.)
- ^ a b State Highway Department of Georgia (January 1966). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b State Highway Department of Georgia (January 1967). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b State Highway Department of Georgia (January 1968). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b State Highway Department of Georgia (January 1969). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ a b State Highway Department of Georgia (January 1970). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ State Highway Department of Georgia (January 1971). Official Highway Map (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (January 1977). Official Highway Map (PDF) (Map) (1977–1978 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ a b Georgia Department of Transportation (January 1977). Official Highway Map (PDF) (Map) (1977–1978 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (January 1978). Official Highway Map (PDF) (Map) (1978-79 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (1981). Official Highway and Transportation Map (PDF) (Map) (1981–1982 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (1982). Official Highway and Transportation Map (PDF) (Map). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (1984). Official Highway and Transportation Map (PDF) (Map) (1984–1985 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ Georgia Department of Transportation (1986). Official Highway and Transportation Map (PDF) (Map) (1986–1987 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ a b Georgia Department of Transportation (1988). Official Highway and Transportation Map (PDF) (Map) (1988–1989 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ a b c Georgia Department of Transportation (1989). Official Highway and Transportation Map (PDF) (Map) (1989–1990 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ a b c Georgia Department of Transportation (1990). Official Highway and Transportation Map (PDF) (Map) (1990–1991 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 17, 2017.
- ^ a b Georgia Department of Transportation (1991). Official Highway and Transportation Map (PDF) (Map) (1991–1992 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ a b c Georgia Department of Transportation (1993). Official Highway and Transportation Map (PDF) (Map) (1993–1994 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ a b c d Georgia Department of Transportation (1994). Official Highway and Transportation Map (PDF) (Map) (1994–1995 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ Georgia Department of Transportation (1995). Official Highway and Transportation Map (PDF) (Map) (1995–1996 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ Georgia Department of Transportation (1996). Official Highway and Transportation Map (PDF) (Map) (1996–1997 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ Georgia Department of Transportation (1997). Official Highway and Transportation Map (PDF) (Map) (1997–1998 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ Georgia Department of Transportation (1998). Official Highway and Transportation Map (PDF) (Map) (1998–1999 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ a b c Georgia Department of Transportation (2009). Official Highway and Transportation Map (PDF) (Map) (2009–2010 ed.). Scale not given. Atlanta: Georgia Department of Transportation. Retrieved June 18, 2017.
- ^ OCLC 770217845. Retrieved June 18, 2017.
- ^ Lifsey, Jennifer (May 17, 2018). "GDOT announces plans for repairing stretch of GA-21 following C-130 crash". Raycom media. Retrieved 18 May 2018.
- ^ "Georgia DOT Issues Revised SR 21 Detour". WJCL. Hearst Television Inc. 6 May 2018. Retrieved 18 May 2018.
- ^ a b c Google (August 26, 2013). "Overview map of SR 21 Spur (Garden City)" (Map). Google Maps. Google. Retrieved August 26, 2013.
- ^ a b c Google (October 1, 2019). "Overview map of SR 21 Alt" (Map). Google Maps. Google. Retrieved October 1, 2019.
- ^ a b Quimby, Kelly (May 16, 2017). "Pooler joins Savannah in request for state maintenance of Jimmy DeLoach Parkway". Savannah: Savannah Morning News (published May 15, 2017). Retrieved June 18, 2017.
- GDOTMaps.
- ^ GDOTMaps.
- ^ "New Jimmy DeLoach Connector Opens". Savannah: Savannah Tribune. June 1, 2016. Retrieved June 18, 2017.
- ^ GDOTMaps.
- ^ GDOTMaps.
- GDOTMaps.
- ^ a b c Google (August 26, 2013). "Overview map of SR 21 Spur (Springfield)" (Map). Google Maps. Google. Retrieved August 26, 2013.
- ^ a b c Google (5 May 2016). "Overview map of SR 21 Bus" (Map). Google Maps. Google. Retrieved 5 May 2016.
- ^ State Highway Department of Georgia (April–May 1934). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 19, 2017.
- ^ State Highway Department of Georgia (October 1, 1934). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 19, 2017.
- ^ a b c Google (August 26, 2013). "Overview map of SR 21 Bus" (Map). Google Maps. Google. Retrieved August 26, 2013.
- ^ State Highway Department of Georgia (July 1, 1937). System of State Roads (PDF) (Map). Scale not given. Atlanta: State Highway Department of Georgia. Retrieved June 19, 2017.
- ^ GDOTMaps.
- ^ GDOTMaps.
- ^ GDOTMaps.