Georgia State Route 21
State Route 21 is an state highway that travels southeast-to-northwest through portions of Chatham, Effingham, Screven, and Jenkins counties in the eastern part of the U.S. state of Georgia. The highway connects the Savannah and Millen areas, via Garden City, Port Wentworth, Rincon, Springfield, and Sylvania.
SR 21 formerly had its northern terminus at the South Carolina state line in Augusta. It traveled on the current path of US 25/SR 121 from Millen to Augusta. In the city, it used the path of SR 28 and the Georgia segment of US 25 Bus.
The highway is part of the Savannah River Parkway which is being considered for inclusion into Interstate 3, a future Interstate Highway proposed to connect the Savannah and Knoxville, Tennessee areas.
Route description
SR 21 begins at an intersection with the eastern terminus of SR 204 in Savannah. The highway travels to the west-northwest, becoming a freeway, and gains the designation of Interstate 516 and the unsigned SR 421. The highways travel concurrently to the west-northwest, then curve to the north-northeast at the interchange with Veterans Parkway. At exit 3, US 17/SR 25 join the freeway from the southwest, and US 80/SR 26 join the freeway from the northeast. Continuing to the north-northeast, the highways have an interchange with I-16, at which point, US 17 departs to the east-southeast, concurrent with I-16. At exit 7, US 80/SR 26 depart to the west-northwest, and the highways turn to the west-northwest. After SR 25 departs, I-516/SR 421 ends, and SR 21 continues its northwestward route. In Port Wentworth, SR 30 joins the highway; north of their interchange with I-95, SR 30 departs to the west-southwest.SR 21 continues north, leaving Chatham County and entering Effingham County. The highway travels through Rincon and Springfield, then continues northwest, through rural parts of the county, and continues into Screven County. After a brief concurrency with US 301/SR 73 Loop around the western side of Sylvania, SR 21 continues west into Jenkins County. East of Millen, SR 21 turns to the northwest at its intersection with SR 67, then arcs to the northeast of Millen to meet its northern terminus at US 25/SR 121.
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.It stretches from the Chatham–Effingham county line to the Garden City–Port Wentworth city line.
In 2000, the Georgia General Assembly passed a resolution to designate this portion of SR 21 in honor of Tom Triplett, 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.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 Waynesboro. By the end of September 1921, it was extended north-northeast to Augusta, replacing a segment of SR 12. By October 1926, US 17/SR 25 was designated on the southern two-thirds of the Chatham County portion of SR 21, but there was no indication if SR 21 was truncated off this segment. In 1930, US 25 was designated on SR 21 from Millen to Augusta. About seven years later, SR 119 was designated on the path of SR 21 southeast of Springfield. At the end of the year, the 1938 GDOT map showed more detail for the highway; it was the first GDOT map that had inset maps for Savannah and Augusta. It showed that US 17/SR 21/SR 25 traveled west-northwest from Savannah on Bay Street. It also showed that US 25/SR 21 entered Augusta on Savannah Road, then began a concurrency with US 1/US 78/SR 4/SR 10/SR 12, traveled northeast on Twiggs Street, and curved to the north-northeast on 7th Street. At SR 28, US 1/US 78/SR 4/SR 10/SR 12 traveled east-southeast on it, while US 25/SR 21 traveled west-northwest on it. They turned to the north-northeast on 13th Street to the South Carolina state line. Here, SR 21 ended, and US 25 continued to the north.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 Industrial City Gardens. US 17/SR 25 was shifted off of SR 21 farther to the south-southeast, in Industrial City Gardens. The entire length of SR 21 was hard surfaced. Between April 1949 and August 1950, the path of SR 119 southeast of Springfield was shifted northward, off of the concurrency with SR 21. Its former path that was not concurrent with SR 21 was redesignated as SR 275. By the beginning of 1952, SR 17 was extended on the path of US 17/US 80/SR 21/SR 25 in the Savannah area. Between June 1954 and June 1955, DeRenne Avenue in Savannah was established. A southern bypass of the main part of Augusta was built from US 78/US 278/SR 10/SR 12 on the northeastern edge of Camp Gordon to an interchange with US 25/SR 21 and the northern terminus of SR 56. It was under construction from there east, northeast, and north-northeast to the intersection of Gwinnett Street and 5th Street. US 1/US 78/SR 4/SR 10/SR 12 split off of US 25/SR 21 just north of Gwinnett Street. Between June 1955 and July 1957, US 1/US 25/US 78/SR 4/SR 10, with US 278's then-recent extension, was rerouted onto the previous bypass, which was completed on its previous path and extended a very short distance. SR 4 and SR 21 traveled on their previous alignments.1960s
Between July 1957 and June 1960, US 25 was rerouted in downtown Augusta. It traveled east-southeast on SR 28 to the bypass of the city. Its former path was redesignated as US 25 Bus.; however, there was no indication if SR 21 ended at the 7th Street–Broad Street intersection, traveled concurrent with US 25 Bus./SR 28, or traveled concurrent with US 25/SR 28. By June 1963, SR 26 Loop was designated on DeRenne Avenue and proposed to travel west-northwest and then north-northeast to US 17/US 80/SR 17/SR 21/SR 26 just northwest of Savannah. The path of SR 121 was extended onto US 25/SR 21 from Millen to Augusta. By the beginning of 1966, SR 26 Loop was proposed to be extended from the La Roche Avenue intersection north-northeast to US 80/SR 26 west-northwest of Thunderbolt. Skidaway Road was established from US 80/SR 26 west-northwest of Thunderbolt south-southwest to DeRenne Avenue. SR 17 was truncated to what is now its northern intersection with US 80/SR 26/SR 30 northwest of Bloomingdale. A western bypass of Sylvania, designated as SR 73 Loop, was proposed from US 301/SR 73 south-southwest of the city to another intersection with those highways north-northwest of it. SR 121 was extended onto the bypass of downtown Augusta, which was then listed as Gordon Highway. SR 21 was indicated to travel on US 25 Bus./SR 28 and split with it onto 13th Street. In 1966, SR 26 Loop was extended from Montgomery Street to Liberty Parkway and was under construction from there to Augusta Avenue. The next year, its segment from Liberty Parkway to I-16 was indicated to "open Spring '68". In 1968, this segment opened. The next year, SR 26 Loop was opened from I-16 to Augusta Avenue.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 US 301 Bus. In 1977, SR 26 Loop was completed on its previous proposed extension. The next year, the entire completed portion of SR 26 Loop, except for the easternmost portion between La Roche Avenue and Skidaway Road, was redesignated as a southeastern extension of SR 21. The portion between La Roche Avenue and Skidaway Road was just decommissioned. SR 21 was also designated on Skidaway Road from US 80/SR 26 west-northwest of Thunderbolt south-southwest to DeRenne Avenue and continued its previous route.1980s
In 1981, the northern terminus of SR 21 was truncated to the main part of Millen. In 1985, the southern terminus of SR 21 was truncated to its current point at SR 204. I-516 was designated on SR 21 from Montgomery Street in Savannah to Garden City. US 17/SR 25 was routed onto the path of I-516/SR 21 from the Ogeechee Road to the Bay Street interchanges. The former path on Bay Street was redesignated as part of US 17 Alt./SR 25 Alt. In 1988, an unnumbered road was built from SR 21 southeast of Sylvania to US 301/SR 73 at the southern terminus of SR 73 Loop south-southwest of the city. The next year, a northeastern bypass of Millen, designated as SR 828, was proposed from SR 21 east of the city to US 25/SR 121 north-northwest of it.1990s to present
In 1990, the unnumbered road south of Sylvania was designated as SR 829. In 1993, a western bypass of Springfield, designated as SR 863, was proposed from SR 21 south-southeast of the city to another intersection with SR 21 northwest of it. The path of SR 21 in the Sylvania area was shifted south-southwest, replacing the path of SR 829 and then routed on US 301/SR 73 Loop. Its former path was redesignated as SR 21 Bus. In 1995, the path of SR 21 in the Millen area was shifted northward, replacing the path of SR 828. The path of US 17 in Savannah, north of I-16, was shifted eastward, off of I-516/US 80/SR 21/SR 25/SR 26 and onto I-16 and SR 404 Spur. This rerouting replaced the path of US 17 Alt. In 1997, the path of SR 21 in the Springfield area was shifted westward, replacing the path of SR 863. In 2010, the path of SR 21 in the Newington area was shifted southwestward; its former path was redesignated as SR 21 Bus.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., traffic is diverted around the crash site to an adjacent road through a temporary detour, until the Georgia Department of Transportation finishes repairs.