Interstate 16 (I-16), also known as Jim Gillis Historic Savannah Parkway, is an east–west

Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...

located entirely within the US state of

Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...

. It carries the hidden designation of State Route 404 (SR 404) for its entire length. I-16 travels from downtown Macon, at an interchange with

I-75 Interstate 75 (I-75) is a major north–south Interstate Highway System, Interstate Highway in the Great Lakes region, Great Lakes and Southeastern United States, Southeastern regions of the United States. As with most Interstates that end ...

and SR 540 to downtown Savannah at Montgomery Street (exit 167B). It also passes through or near the communities of

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

, Metter, and Pooler. I-16's unsigned designation of SR 404 has a

spur A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of directing a horse or other animal to move forward or laterally while riding. It is usually used to refine the riding aids (commands) and to ba ...

that is signed in Savannah. The westernmost segment in Macon is part of the

Fall Line Freeway The Fall Line Freeway (FLF), also signed as State Route 540 (SR 540), is a highway designed to span the width of the U.S. state of Georgia (U.S. state), Georgia from Columbus, Georgia, Columbus at the Alabama state line to Augusta, ...

, a highway that connects Columbus and Augusta. This segment may also be incorporated into the proposed eastern extension of I-14, which is currently entirely within

Central Texas Central Texas is a region in the U.S. state of Texas roughly bordered on the west by San Saba, to the southeast by Bryan- College Station, the south by San Marcos and to the north by Hillsboro. Central Texas overlaps with and includes part ...

and may be extended to Augusta. All of I-16 is included as part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility, and defense.

Route description

Macon-Bibb County

I-16 begins at an interchange with

/ SR 540, just northwest of downtown Macon, in Bibb County. Here, it begins a concurrency with SR 540. The Interstate and SR 540 proceed southeast, traveling just east of the downtown area. They cross over the

Ocmulgee River The Ocmulgee River () is a western tributary of the Altamaha River, approximately 255 mi (410 km) long, in the U.S. state of Georgia (U.S. state), Georgia. It is the westernmost major tributary of the Altamaha.US 23/ US 129/ SR 49 (Spring Street/North Avenue). Then, they have a partial interchange with SR 22 (2nd Street) that is only accessible from the westbound lanes. Almost immediately is an interchange with US 80/ SR 87 (Martin Luther King Jr. Boulevard/Coliseum Drive). At this intersection, SR 540 departs the concurrency to the north-northeast. Within the eastern part of this interchange, the highway travels under a railroad bridge that carries railroad tracks of

Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad operating in the Eastern United States. Headquartered in Atlanta, the company was formed in 1982 with the merger of the Norfolk and Western Railway and Southern Railway. The comp ...

. In the east-central part of Macon, I-16 travels through

Ocmulgee Mounds National Historical Park Ocmulgee Mounds National Historical Park (formerly Ocmulgee National Monument) in Macon, Georgia, United States preserves traces of over ten millennia of culture from the Indigenous peoples of the Southeastern Woodlands. Its chief remains are m ...

but without direct access. Visitors need to first exit at the US 80/SR 87 exit. On the southern edge of the national monument, it crosses over Walnut Creek. It then travels on a bridge over some railroad tracks of

CSX CSX Transportation , known colloquially as simply CSX, is a Railroad classes, Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles () of trac ...

and Boggy Branch. After leaving Macon, I-16 curves to the south-southeast and has an interchange with US 23/ U.S. Route 129 Alternate (US 129 Alt.)/SR 87 (Ocmulgee East Boulevard). In the interchange, the highway crosses over Swift Creek. It crosses over Stone Creek before entering

Twiggs County Twiggs County is a County (United States), county located in the Central Georgia, central portion of the U.S. state of Georgia (U.S. state), Georgia. As of the 2020 United States census, 2020 census, the population was 8,022. The county seat is ...

Twiggs, Bleckley, and Laurens counties

I-16 curves back to the southeast and has an interchange with Sgoda Road. It crosses over Flat Creek and then has an interchange with Jeffersonville and Bullard roads. It curves to the east-southeast and crosses over Savage and Turvin creeks. It then curves back to the southeast. The highway has an interchange with SR 96. Almost immediately, it crosses over Richland Creek. It then has an interchange with SR 358. I-16 curves to the east-southeast and enters Bleckley County just before it has an interchange with SR 112 just south of

Allentown Allentown may refer to: Places * Allentown, California, now called Toadtown, California * Allentown, Georgia, a city in four counties in Georgia * Allentown, Illinois, an unincorporated community in Tazewell County * Allentown, New Jersey, a boroug ...

. It then crosses over Rocky Creek just before entering Laurens County. The Interstate curves back to the southeast and crosses under SR 278 before it travels south of Montrose. It crosses over Bay Branch just before an interchange with SR 26. It then enters the southwestern part of

Dudley Dudley ( , ) is a market town in the West Midlands, England, southeast of Wolverhampton and northwest of Birmingham. Historically part of Worcestershire, the town is the administrative centre of the Metropolitan Borough of Dudley. In the ...

. There, it has an interchange with SR 338. I-16 curves back to the east-southeast and crosses over Little Rocky Creek just before a

rest area A rest area is a public facility located next to a large thoroughfare such as a motorway, Limited-access road, expressway, or highway, at which drivers and passengers can rest, eat, or refuel without exiting onto secondary roads. Other names ...

. Just to the west-northwest of a crossing of Turkey Creek, the westbound lanes have a rest area. These two rest areas are the only ones along the entire length of I-16. On the southwestern edge of

, the highway has an interchange with SR 257. On the southern edge of the city are interchanges with US 319/ US 441/ SR 31 and SR 19 (Martin Luther King Jr. Drive). It then crosses over the

Oconee River The Oconee River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map Accessed April 21, 2011 river in the U.S. state of Georgia. Its origin is in Hall County and it terminates where it join ...

. It has an interchange with SR 199 (Old River Road) just before a crossing of Pughes Creek. Southeast of that is a crossing of Red Hill Creek. Just south of Rockledge, the highway crosses over Mercer Creek. On the eastern edge of the creek, it enters Treutlen County.

Treutlen County

I-16 curves to the east-northeast and crosses over some railroad tracks of CSX before an interchange with SR 29. It immediately curves back to the east-southeast. It crosses over Red Bluff Creek. Then is an interchange with SR 15/ SR 78. The highway travels south of Sand Hill Lake before curving to the east-northeast. It crosses over Pendleton Creek and travels under a bridge that carries SR 86. Then, it begins to curve to the southeast. It has an interchange with US 221/ SR 56. It crosses over Reedy Creek and curves to the east-southeast. It has an interchange with SR 297. At the overpass for SR 297, the highway enters Emanuel County.

Emanuel County

After the SR 297 interchange, I-16 heads more to the southeast. It curves to a nearly due east direction and crosses over the Ohoopee River. Just after crossing over some railroad tracks of Norfolk Southern Railway, it enters the

city limits City limits or city boundaries refer to the defined boundary (real estate), boundary or border of a city. The area within the city limit can be called the city proper. Town limit/boundary and village limit/boundary apply to towns and villages. ...

of Oak Park. It curves to the southeast and has an interchange with US 1/ SR 4/ SR 46. After this interchange, the highway begins to parallel SR 46. It curves to the east-southeast and crosses over Jacks Creek. Then, it enters Candler County.

Candler County

I-16 has an interchange with SR 57 (Aline Road). It crosses over Wolfe Creek and then heads to the east-northeast. It crosses over the Canoochee River and curves to a nearly due east direction. It crosses over Sams Creek before entering Metter. As soon as it enters Metter, it passes the Metter Municipal Airport. Right after the airport is an interchange with SR 23/ SR 121. On the southeastern edge of Metter, I-16 travels under a bridge that carries SR 129. It crosses over 15 Mile Creek and then curves to the southeast. It crosses over Tenmile Creek and has an interchange with Pulaski–Excelsior Road just before entering Bulloch County.

Bulloch County

The Interstate curves to the east-southeast and has an interchange with US 25/ US 301/ SR 73 and SR 555 ( Savannah River Parkway). Then, it crosses over Lotts and Little Lotts creeks. It then travels northeast of Nevils. It briefly curves to the east-southeast, where it has an interchange with SR 67, and then curves back to the southeast. It crosses over DeLoach Branch and then curves to the east-southeast. It crosses over Luke Branch and then Boggy Branch before curving to a nearly due east direction. It has an interchange with Ash Branch Church Road. After a crossing of Ash Branch, the highway curves to the east-southeast. It has an interchange with SR 119 just before entering Bryan County.

Bryan, Effingham, and Chatham counties

Almost immediately, the highway crosses over Black Creek. It then curves to the southeast and has an interchange with US 280/ SR 30 southwest of Blitchton. It crosses over some railroad tracks of Georgia Central Railway and then crosses over the

Ogeechee River The Ogeechee River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 26, 2011 blackwater river in the U.S. state of Georgia. It heads at the confluence of its North and Sout ...

, which marks the Effingham County line. It has an interchange with Old River Road south of Meldrim and then enters Chatham County. The first city in the county that I-16 enters is Bloomingdale. There, it has an interchange with the southern terminus of SR 17 Conn. ( Jimmy DeLoach Parkway). It crosses over the Little Ogeechee River. It very briefly travels along the Bloomingdale– Pooler city line before entering Pooler proper. It has an interchange with Pooler Parkway. It crosses over the Savannah–Ogeechee Canal just before an interchange with

I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...

. Here, I-16 begins traveling along the southern edge of the city limits of Pooler. Right after the I-95 interchange, the highway crosses over the Hardin Canal. At an interchange with SR 307 (Dean Forest Road), I-16 begins traveling along the

Savannah A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach th ...

– Garden City line. It briefly enters the city limits of Savannah before traveling along the Savannah–Garden City line again. It has an interchange with the Chatham Parkway. It then reenters Savannah and curves to the east-southeast. It crosses over some railroad tracks of CSX just before an interchange with I-516/ US 17/ US 80/ SR 21/ SR 25/ SR 26 (W.F. Lynes Parkway). Here, US 17 begins a concurrency with I-16. It crosses over the Springfield Canal just before a partial interchange with the former eastern terminus of SR 204 (West 37th Street). This interchange is only accessible from the eastbound lanes. I-16/US 17 curves to the northeast. At the next interchange, US 17 splits off, where State Route 404 Spur (SR 404 Spur) begins. This interchange also provides access to Gwinnett Street. The highway has an interchange with Martin Luther King Jr. Boulevard. The westbound access for this highway is at the eastern terminus. I-16 curves to the north-northeast and reaches its eastern terminus, an interchange with Montgomeryi Street in downtown Savannah. The construction of this interrupted sections of Berrien Street, West Jones Street, and West Charlton Street.

Miscellaneous notes

I-16 serves as a

hurricane evacuation route Hurricane evacuation is the immediate and rapid movement of people away from the threat or actual occurrence of a hurricane. County judges, emergency managers and other officials may recommend a voluntary evacuation or order a mandatory evacuati ...

for Savannah and other coastal areas. The road is designed for contraflow travel with

railroad Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of ...

-type gates to block most entrance and exit ramps for the normally eastbound lanes. During hurricane evacuation, I-16 is converted into westbound traffic from Savannah to west of US 441 in Dublin (exit 51), a total of .

History

The first part of I-16 opened October 11, 1966, to traffic between US 319 (exit 51) in Dublin to SR 29 (exit 67) near Rockledge. In 1968, the segment between US 280 to downtown Savannah was completed and opened. By the early 1970s, I-16 was completed from downtown Macon at I-75 to Jeffersonville Road near Danville. It was also extended from Dublin to

. In 1973, the connection between Macon to Dublin was completed. The last part of the I-16 opened on September 22, 1978, placing it in Emanuel, Candler, and Bulloch counties and completing the connection between downtown Macon and Savannah.

1990s

In 1999,

Hurricane Floyd Hurricane Floyd was a very powerful and large tropical cyclone which struck the Bahamas and the East Coast of the United States. It was the sixth list of named tropical cyclones, named storm, fourth hurricane, and third major hurricane in the 1 ...

hit Georgia's coast. As a result, the eastbound I-16 lanes from Savannah to US 1 (exit 90) were opened to westbound traffic. This marked the first time I-16 was turned into a one-way Interstate. This contraflow traffic method has been used since, including in 2016 in evacuation efforts from

Hurricane Matthew Hurricane Matthew was a powerful tropical cyclone which caused catastrophic damage and a humanitarian crisis in Haiti, as well as widespread devastation in the southeastern United States. The deadliest Atlantic hurricane since Hurricane Stan ...

and 2017 for

Hurricane Irma Hurricane Irma was an extremely powerful and devastating tropical cyclone that was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, Maria two weeks later. At the time, it was considered ...

2000s

Until 2000, the state of Georgia used the sequential interchange numbering system on all of its Interstate Highways. The first exit on each highway would begin with the number "1" and increase numerically with each exit. In 2000, the Georgia Department of Transportation switched to a mileage-based exit system, in which the exit number corresponded to the nearest milepost. In 2001, the

Georgia General Assembly The Georgia General Assembly is the state legislature of the U.S. state of Georgia. It is bicameral, consisting of the Senate and the House of Representatives. Each of the General Assembly's 236 members serve two-year terms and are directl ...

passed a resolution to designate the Earl T. Shinhoster Interchange at the interchange with Martin Luther King Jr. Boulevard in Savannah in honor of Earl Shinhoster, who was a

black Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...

civil rights Civil and political rights are a class of rights that protect individuals' political freedom, freedom from infringement by governments, social organizations, and private individuals. They ensure one's entitlement to participate in the civil and ...

activist. This interchange is located in the economic and cultural center for Black Savannah. In 2003, the

passed a resolution to designate I-16 in honor of James L. Gillis Sr., a Democrat who served as a state representative,

state senator A state senator is a member of a State legislature (United States), state's senate in the bicameral legislature of 49 U.S. states, or a member of the unicameral Nebraska Legislature. History There are typically fewer state senators than there ...

, and director of the

Georgia Department of Transportation The Georgia Department of Transportation (GDOT) is the organization in charge of developing and maintaining all state and federal roadways in the U.S. state of Georgia (U.S. state), Georgia. In addition to highways, the department also has a li ...

, as the Jim Gillis Historic Savannah Parkway. Gillis's sons,

Hugh Hugh is the English-language variant of the masculine given name , itself the Old French variant of '' Hugo (name)">Hugo'', a short form of Continental Germanic Germanic name">given names beginning in the element "mind, spirit" (Old English ). ...

and James Jr., also served as Democratic state legislators. Hugh was a state representative from 1941 to 1953 and a

from 1953 to 1955 and from 1963 to 2005. James Jr. was a

from 1945 to 1946.

2020s

On July 15, 2021, a truck, with its dump trailer raised, struck the overpass bridge of SR 86 near exit 78, causing the bridge deck to shift . While no injuries were reported, the resulting damage prompted GDOT to close both directions of I-16 from exit 71 to exit 78 while the damaged bridge was being demolished. Both directions of I-16 were reopened within 48 hours of the incident. The reconstructed overpass was opened to traffic in late July 2022. Due to this, people had to take detours up to 10 minutes longer than the normal route through the towns of

Adrian Adrian is a form of the Latin given name Adrianus or Hadrianus. Its ultimate origin is most likely via the former river Adria from the Venetic and Illyrian word ''adur'', meaning "sea" or "water". The Adria was until the 8th century BC the ma ...

and Soperton.

Future

I-95 interchange

Due to high congestion during

rush hour A rush hour (American English, British English) or peak hour (Australian English, Indian English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest. Normally, this happens twice e ...

in Savannah and many deadly car accidents, the

(GDOT) has undertaken a new construction project at the interchange of I-95 and I-16 (exit 157 on I-16), along with other I-16 improvements. The project, dubbed as the 16@95 Improvement Projects, includes: * The widening of I-16 from two lanes in each direction to three lanes between the junctions with

and I-516 (exit 164). * The construction of a partial turbine interchange (whirlpool interchange) at the junction of I-16 and I-95, in which two existing loop ramps, from I-16 westbound to I-95 southbound, and from I-95 southbound to I-16 eastbound, will be replaced with turbine configuration ramps. * The creation of a collector–distributor road on I-95 northbound to separate through traffic from cars exiting onto and entering from I-16. * The construction of a two-lane emergency median cross-over for westbound I-16 traffic between Dean Forest Road/SR 307 (exit 160) and I-95, to assist in hurricane evacuations from Savannah. * Ramp meters will be installed at exit 160 as well as exit 162 (Chatham Parkway) * The reconstruction of six bridges, replacement of four bridges, and the construction of three new bridges near the area. * The addition of new interchange lighting at the I-95 interchange and

Intelligent Transportation System An intelligent transportation system (ITS) is an advanced application that aims to provide services relating to different modes of transport and traffic management and enable users to be better informed and make safer, more coordinated, and 's ...

technology to provide real-time driving conditions to travelers. The project, upon completion, is expected to result in a 32% decrease in I-16 congestion by 2030. Despite concerns from residents, no new noise barriers will be built along I-16 during the construction. A noise study concluded that barriers would not be necessary since traffic noise were not predicted to be over 66 dB(A). The project is expected to cost around $295 million. Construction, which will be completed by Savannah Mobility Contractors JV, was set to begin in the second half of 2019 and be completed by the end of 2022. However, construction did not start until 2020, has been delayed multiple times, and is now expected to cost $317.4 million. The ramp from I-16 west to I-95 south was opened on March 23, 2023, with the ramp from I-95 south to I-16 east opened on June 2, 2023. Construction is ongoing as of January 29, 2024, with long-term detour routes in place.

I-75 interchange

The interchange of

and I-16 is also undergoing construction as part of $500 million project, split into six phases, with the first three phases being worked on simultaneously. These phases were set to be completed by the end of 2021, but as of February 2023, only Phase 1 has been completed: * Phase 1: A collector–distributor road was built on I-16 eastbound between the I-75 junction and Spring Street (exit 1A), including new bridges over the

Ocmulgee River The Ocmulgee River () is a western tributary of the Altamaha River, approximately 255 mi (410 km) long, in the U.S. state of Georgia (U.S. state), Georgia. It is the westernmost major tributary of the Altamaha. * Phase 2: Construction includes improvements on I-75 between Hardeman Avenue (exit 164) and I-16 (exit 165) and the shifting of exit ramps from I-75 in each direction to I-16. Later in this phase, access to Spring Street for traffic coming from southbound I-75 via I-16 will be temporarily closed to allow for completion of the collector–distributor system. * Phase 3: A new collector–distributor road is being built along I-75 north through the I-16 interchange, along with a new westbound collector–distributor road from Spring Street along I-16 over the Ocmulgee River and portions of other ramps. Construction on Phase 1 was completed by C.W. Matthews at a cost of $63 million, while construction on Phase 2 and Phase 3 is being completed by E.R. Snell Company for $156 million. Three additional phases are included in the project, which ultimately are intended to help improve access to and from downtown Macon and Gray Highway via the currently-underutilized Second Street bridge, reducing congestion on Spring Street and North Avenue: * Phase 4: Bids for a construction contract are scheduled to occur in 2021. Second Street will be widened and ramps from and to eastbound I-16 will be constructed. Construction from Phase 1 and Phase 2 will be completed, along with the collector–distributor road through the I-75 interchange along eastbound I-16 to the Coliseum Drive/Martin Luther King Jr. Boulevard exit. Access from I-75 southbound via I-16 to Spring Street will be reopened at the conclusion of this phase. * Phase 5: Bids for a construction contract are scheduled to occur in 2021. During this phase, the Spring Street loop ramp will be reopened and the temporary left turn lane on northbound Spring Street to I-16 westbound will be closed permanently. Also, Phase 3 construction will be completed, and a connection to the north-to-east ramp from Phase 2 will be built. This phase also includes the completion of the westbound collector–distributor road from Phase 3, along with a new ramp from Second Street to westbound I-16. * Phase 6: Bids for a construction contract are scheduled to occur in 2023. A tunnel will be built for the Norfolk Southern Railroad under I-75. All remaining construction will be completed in this phase. Also as a part of this project, GDOT spent $12 million in the Pleasant Hill neighborhood to help mitigate the effect of the construction and new highway ramps. The construction, which was completed in the summer of 2018, included the creation of two new parks and the transformation of Penniman House, the childhood home of the late musician

Little Richard Richard Wayne Penniman (December 5, 1932 – May 9, 2020), known professionally as Little Richard, was an American singer, pianist, and songwriter. He was an influential figure in popular music and culture for seven decades. Described as the "Ar ...

, into a community resource center. This project was labeled as Phase 1B.

Effect of construction on Port of Savannah traffic

According to GDOT, with the expansion of I-16 at its interchanges with I-75, I-95, and I-516, the estimated increase in

gross state product Gross regional domestic product (GRDP), gross domestic product of region (GDPR), or gross state product (GSP) is a statistic that measures the size of a region's economy. It is the aggregate of gross value added (GVA) of all resident producer unit ...

(GSP) would be $9.1 million at a cost of $1.95 million. In addition, employment would increase annually by 2,426, and the

return on investment Return on investment (ROI) or return on costs (ROC) is the ratio between net income (over a period) and investment (costs resulting from an investment of some resources at a point in time). A high ROI means the investment's gains compare favorab ...

(ROI) would be 4.7.

Possible removal of the Earl T. Shinhoster Bridge

In Savannah, city and state officials are currently considering removing the Earl T. Shinhoster Bridge, which carries eastbound traffic over Martin Luther King Jr. Boulevard and onto Montgomery Street at the eastern terminus of I-16. The construction of the I-16 flyover ramps into Savannah in the 1960s led to the removal of

Union Station A union station, union terminal, joint station, or joint-use station is a railway station at which the tracks and facilities are shared by two or more separate railway company, railway companies, allowing passengers to connect conveniently bet ...

, as well as two full city blocks, which had severe negative impacts on the African American community. A study about possibly removing the ramps was approved and funded by the Savannah City Council in December 2023. The study, which is listed as the I-16 Ramp Removal Study, will be managed by the Metropolitan Planning Commission, the

(GDOT), and the Federal Highway Administration. In March 2024, Georgia U.S. Senators Jon Ossoff and Raphael Warnock announced that $1.8 million in federal funding had been allocated toward the planning of the project.

Exit list

Related routes

State Route 404 Spur

State Route 404 Spur (SR 404 Spur) is a spur route that travels from I-16 exit 166 northward along US 17 to the South Carolina state line. As its number suggests, it is a spur from SR 404, the Unsigned highway, unsigned route that is designated along the full length of I-16. However, SR 404 Spur is actually a signed highway. Near the northern end is the Talmadge Memorial Bridge. Exit list

Interstate 516

Interstate 516 (I-516) is a List of auxiliary Interstate Highways, auxiliary route from SR 21 (Augusta Road) in Garden City to DeRenne Avenue in

. It is also known as W.F. Lynes Parkway and has an unsigned designation of State Route 421 (SR 421).

References

External links

I-16 at the Interstate Guide
{{DEFAULTSORT:I16 Interstate Highway System, 16 Interstate Highways in Georgia (U.S. state), 16 Transportation in Macon, Georgia, Interstate 16 Transportation in Bibb County, Georgia Transportation in Twiggs County, Georgia Transportation in Bleckley County, Georgia Transportation in Laurens County, Georgia Transportation in Treutlen County, Georgia Transportation in Emanuel County, Georgia Transportation in Candler County, Georgia Transportation in Bulloch County, Georgia Transportation in Bryan County, Georgia Transportation in Effingham County, Georgia Transportation in Chatham County, Georgia Roads in Savannah, Georgia, Interstate 16 1966 establishments in Georgia (U.S. state)