Interstate 24

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"I-24" redirects here. For the Type C1 submarine of the Japanese Imperial Navy, see Japanese submarine I-24.

Interstate 24 marker

Interstate 24
Route information
Length: 316.36 mi[1] (509.13 km)
Major junctions
West end: I-57 in Pulleys Mill, IL
East end: I-75 in Chattanooga, TN
Highway system
I‑22 I‑25

Interstate 24 (I-24) is an Interstate Highway in the Midwestern and Southeastern United States. It runs diagonally from I-57 10 miles (16 km) south of Marion, Illinois, to Chattanooga, Tennessee, at I-75.[2] As an even-numbered Interstate, it is signed as an east–west route, though the route follows a more southeast–northwest routing. Because the routing of I-24 is diagonal, the numbering is a bit unusual as it does not completely follow the Interstate Highway System numbering conventions.

I-24 makes up the majority of a high-traffic corridor between St. Louis, Missouri, and Atlanta. This corridor utilizes I-64 and I-57 northwest of I-24, and I-75 southeast of I-24.

Route description[edit]

  mi[1] km
Illinois 38.73 62.33
Kentucky 93.37 150.26
Tennessee 180.16 289.94
Georgia 4.10 6.60
Total 316.36 509.13


I-24 begins at exit 44A on I-57 in southern Williamson County, near the community of Pulleys Mill.[3] The highway heads southeast into rural Johnson County, bypassing Goreville to the east. It reaches an exit at Tunnel Hill Road, which serves Goreville and Tunnel Hill. The highway continues south to its next exit at U.S. Route 45 (US 45) north of Vienna. It reaches its next exit at Illinois Route 146 (IL 146) in eastern Vienna. I-24 heads southeast from Vienna into Massac County.[4] Its first exit in Massac County is at Big Bay Road, which serves the communities of Big Bay and New Columbia. I-24 continues southward, bypassing the community of Round Knob before entering Metropolis. The highway meets US 45 again in Metropolis and passes west of Fort Massac State Park. It leaves Metropolis to the south by crossing the Interstate 24 Bridge over the Ohio River, continuing into Kentucky.[5]


I-24 Bridge connects Illinois with Kentucky across the Ohio River

I-24 crosses into Kentucky on a bridge over the Ohio River, passing to the west of the city of Paducah and intersecting US 60, US 45, and US 62. The freeway then passes near the communities of Woodlawn-Oakdale and Reidland, and connects with US 68. East of this point, I-24 runs concurrently with I-69, intersecting US 62 and crossing the Tennessee River and the Cumberland River. The roadway travels along the north shore of the Cumberland River as I-69 splits off to the east just north of Mineral Mound State Park. I-24 continues east, away from the river, through farmland for several miles, passing well south of Hopkinsville. Near the Tennessee border, I-24 passes north of Fort Campbell before crossing into Tennessee.[6]

I-69 runs |concurrently with I-24 for 17 miles (27 km) from the Purchase Parkway in Calvert City to the Western Kentucky Parkway near Eddyville. Additionally, the planned I-66 routing is proposed to run concurrently with I-24 in the Eddyville-to-Paducah corridor.


I-65 junction with I-24 in Nashville.

One of the more hazardous stretches of Interstate highway in the United States[citation needed] is located approximately 40 miles (64 km) west of Chattanooga on I-24 in Monteagle, where the highway crosses the Cumberland Plateau. Compared to grades elsewhere, Monteagle's 4–6% grade does not come close to the steepest (I-40 between Nashville and Knoxville features 5% grades in each direction as well as a 5% grade north of Nashville on I-24, near Joelton), but the slope is protracted over a distance of several miles. While all motorists need to exercise caution, truckers are particularly vexed by Monteagle, and many have died going through this area.[citation needed] As runaway trucks had been a regular and deadly occurrence, in part of the failure or inability of truckers to slow down to the 35 miles per hour (55 km/h) truck speed limit once on the slope, the eastbound lanes were rebuilt in the late 1980s. This work reduced the grade, widened the road, added a required stopping area with traffic lights for trucks prior to descending the mountain, and added two runaway truck ramps where a truck whose brakes have failed due to overheating can exit into a long pit full of loose gravel to safely stop. Owing to geography, these two ramps are on the left side of the grade. This stretch of highway inspired Johnny Cash to write a song about Monteagle Mountain.[citation needed] It is also mentioned in "The Legend", the introductory song for Smokey and the Bandit, which touts the protagonist's driving skill in having reportedly navigated his truck down the Monteagle Grade during a heavy rainstorm, despite an airbrake failure.[citation needed]

The Monteagle grade also has one of the three widest medians of any Interstate highway, with the others being I-8 through the In-Ko-Pah grade in California and I-84 through the Cabbage Hill grade east of Pendleton, Oregon. There is more than a mile between the eastbound and westbound lanes at one point. The eastbound lanes descend the mountain on one side of a ridge, while the westbound lanes ascend the other. Also of interest on Monteagle Mountain is the steep grade on I-24 north of Monteagle. This steep grade occurs for westbound traffic and features a sharp 45 mph (70 km/h) curve to the right while descending steeply at the same time. This downhill curve also features off-ramp approach style lane dividers, in order to slow both motorists and truckers. Also in Chattanooga is the "Ridge Cut", a one-quarter-mile (400 m) section of Missionary Ridge, between the 4th Avenue exit and the Germantown/Belvoir exit. Accidents and severe congestion are common here.[citation needed] I-124 is an occasional (currently unsigned) designation of a portion of the US 27 freeway, which runs as a spur into downtown Chattanooga and beyond.[7]


In the state of Georgia, I-24 runs for four miles (6.4 km), running along the southern flank of Raccoon Mountain and intersecting with I-59 before turning back north to the Tennessee River and around the northern flank of Lookout Mountain. The exits remain numbered according to Tennessee's mileposts. However, the mileposts are Georgia's mileposts. This segment is also officially State Route 409.[citation needed]


I-24 was part of the original Interstate Highway System plan enacted in 1956.[8] The section of I-24 in Illinois was authorized for engineering by 1966 and authorized for construction by 1968.[8][9] The highway opened to traffic by 1977.[10]

On May 18, 2010, it was announced that a sinkhole was found in the eastbound lanes of I-24 in Grundy County, Tennessee, near the exit of Tennessee State Route 50. Tennessee Department of Transportation officials stated that hole was growing with traffic diverted onto the westbound lanes.[11] However, emergency repairs commenced and was reopened several days later.[12]

Exit list[edit]

State County Location mi[13][14] km Exit[15] Destinations Notes
Illinois Williamson 0.00 0.00 0 I-57 – Memphis, Chicago Westbound exit and eastbound entrance; western terminus and signed as exits 44A (south) and 44B (north); uses I-57's exit numbers
Johnson 7.22 11.62 7 Tunnel Hill, Goreville
13.64 21.95 14 US 45 – Vienna, Harrisburg
Vienna 16.00 25.75 16 IL 146 – Vienna, Golconda
Massac 26.55 42.73 27 New Columbia, Big Bay No services
Metropolis 37.16 59.80 37 US 45 – Metropolis, Brookport
Ohio River 38.73
Interstate 24 Bridge
Kentucky McCracken Paducah 2.958 4.760 3 KY 305 – Paducah
4.328 6.965 4 I-24 Bus. east / US 60 – Paducah, Wickliffe – Kentucky Oaks Mall Western terminus of I-24 Bus.
Lone Oak 6.387–
7 US 45 / US 62 – Bardwell, Mayfield
Woodlawn-Oakdale 11.035 17.759 11 KY 1954 (Husband Road) / I-24 Bus. west – Paducah Eastern terminus of I-24 Bus.
Reidland 16.153 25.996 16 US 68 – Paducah
Marshall Calvert City 24.961 40.171 25 Purchase Parkway to US 62 – Fulton, Calvert City Western end of I-69 overlap; signed as exits 25A (south) and 25B (north); temporary southern terminus of I-69
Calvert City 26.565 42.752 27 US 62 – Calvert City, Gilbertsville – Kentucky Dam – Kentucky Dam Village State Resort Park – Land Between the Lakes National Recreation Area
Livingston Grand Rivers 30.729 49.454 31 KY 453 – Smithland, Grand Rivers – The Trace (Land Between the Lakes) Serves Land Between the Lakes National Recreation Area
Lyon Kuttawa 39.553 63.654 40 KY 93 / US 62 / US 641 – Eddyville, Kuttawa
41.647 67.024 42 I-69 north / Western Kentucky Parkway east – Princeton, Elizabethtown Eastern end of I-69 overlap; western terminus of Western Kentucky Parkway; I-69 exit 68
44.732 71.989 45 KY 293 to KY 93 – Princeton – Kentucky State Penitentiary
Caldwell 55.632 89.531 56 KY 139 – Princeton, Cadiz
Trigg 65.313 105.111 65 US 68 / KY 80 – Cadiz, Hopkinsville Serves Land Between the Lakes National Recreation Area
Christian 72.692 116.986 73 KY 117 – Newstead, Gracey
81.243 130.748 81 Pennyrile Parkway north – Hopkinsville Southern terminus of Pennyrile Parkway, exit 1
85.608 137.773 86
US 41 Alt. – Hopkinsville, Fort Campbell
Oak Grove 88.761 142.847 89 KY 115 – Oak Grove, Pembroke serves the Jefferson Davis Monument State Historic Site
Kentucky–Tennessee state line
Tennessee Montgomery Clarksville 1.5 2.4 1 SR 48 – Clarksville, Trenton
4.3 6.9 4 US 79 / SR 13 – Clarksville, Guthrie
7.9 12.7 8 SR 237 (Rossview Road)
10.6 17.1 11 SR 76 – Adams, Clarksville
Robertson Pleasant View 19.2 30.9 19 SR 256 (Maxey Road) – Adams
24.5 39.4 24 SR 49 – Pleasant View, Coopertown, Springfield, Ashland City
Cheatham 31.1 50.1 31 SR 249 (New Hope Road)
Davidson Nashville 35.1 56.5 35 US 431 (SR-65) / Union Hill Road – Springfield, Joelton
40.7 65.5 40 SR 45 (Old Hickory Boulevard)
43.6 70.2 43 SR 155 (Briley Parkway) – Opryland SR 155 exits 18A-B, access to Nashville International Airport
45.0 72.4 44B I-65 north – Louisville Western end of I-65 overlap, exit 88
46.3 74.5 87 US 431 (Trinity Lane, SR-65)
47.3 76.1 46B I-65 south to I-40 west – Memphis, Huntsville Eastern end of I-65 overlap; south exit 86, north exit 86B
47 Jefferson Street
47A US 41 (Ellington Parkway, SR-6) / US 431 / SR 11 to US 31E north / Spring Street
48 James Robertson Parkway (US 31, US 41, US 431, SR-6, SR-11) – State Capitol
49 Korean Vets Boulevard / Shelby Avenue – Nissan Stadium
50.3 81.0 50B I-40 west to I-65 south – Memphis, Huntsville West end of I-40 overlap, east exit 210B, west exit 211; formerly the point where I-24, I-40, and I-65 met
212 Hermitage Avenue (US 70, SR-24) Westbound exit and eastbound entrance
212 Fesslers Lane Eastbound exit and westbound entrance
52B I-40 east – Knoxville Eastern end of I-40 overlap, exit 213A, access to Nashville International Airport
52 US 41 (Murfreesboro Road, US 70S, SR-1)
53.6 86.3 53 I-440 west – Memphis
54 SR 155 (Briley Parkway) SR 155 exits 3A-B
56 SR 255 (Harding Place) Access to Nashville International Airport
57 Haywood Lane – Antioch Signed as exits 57A (west) and 57B (east) eastbound
59 SR 254 (Bell Road)
60 Hickory Hollow Parkway
62 SR 171 (Old Hickory Boulevard)
Rutherford La Vergne 64 Waldron Road – La Vergne
Smyrna 66 SR 266 east (Sam Ridley Parkway) – Smyrna Signed as exits 66A (west) and 66B (east) eastbound
70 SR 102 (Lee Victory Parkway, Almaville Road) – Smyrna
Murfreesboro 74 I-840 – Franklin, Lebanon, Knoxville Signed as exits 74A (west) and 74B (east); I-840 west exit 53, east exits 53A-B
76 Fortress Boulevard, Medical Center Parkway
78 SR 96 – Franklin, Murfreesboro Signed as exits 78A (west) and 78B (east)
80 SR 99 – Murfreesboro
81 US 231 (SR-10) – Shelbyville, Murfreesboro Signed as exits 81A (south) and 81B (north) eastbound
84A Joe B. Jackson Parkway Signed as exits 84A (south) and 84B (north) eastbound
89 Buchanan Road, Epps Mill Road
No major junctions
Coffee 97 SR 64 (Beechgrove Road) – Shelbyville
105 US 41 (SR-2) – Manchester
Manchester 110 SR 53 – Manchester, Woodbury
111 SR 55 – Manchester, McMinnville
114 US 41 (SR-2) – Manchester, Hillsboro
Arnold Air Force Base 117 Arnold Air Force Base – Tullahoma
Grundy Pelham 127 US 64 west / SR 50 – Pelham, Winchester West end of US 64 overlap
Marion Monteagle 134 US 41A (SR-15) – Monteagle, Sewanee
135 To US 41 north (SR-2 west) – Monteagle, Tracy City West end of SR-2 overlap
143 Martin Springs Road (SR-2 east) Eastern end of SR-2 overlap
Kimball 152 US 64 east / US 72 (SR-27 west) to US 41 – Kimball, South Pittsburg Eastern end of US 64 overlap; western end of SR-27 overlap
Jasper 155 SR 28 – Jasper, Dunlap
158 SR 27 east – Nickajack Dam, Powells Crossroads Eastern end of SR-27 overlap
Interstate 24 Bridge over the Nickajack Lake
Haletown 161 SR 156 – Haletown, New Hope
No major junctions
Tennessee–Georgia state line
Georgia Dade 167 I‑59 south (SR-406) – Birmingham Left exit westbound
169 SR 299 to US 11 – Wildwood
Georgia–Tennessee state line
Tennessee Hamilton Chattanooga 174 US 41 / US 64 (US 72, SR-2) to US 11 – Lookout Valley, Lookout Mountain
175 Browns Ferry Road – Lookout Mountain
178 US 27 north (I-124 north) Downtown Chattanooga Western end of US 27 overlap
178 US 11 / US 41 / US 64 (Broad Street, US 72, SR-2) – Lookout Mountain Eastbound exit and westbound entrance
178 SR 58 (Market Street) to US 41 – Lookout Mountain Westbound exit and eastbound entrance
180 US 27 south (Rossville Boulevard, SR-27 north) to SR 8 north / Central Avenue Eastern end of US 27 overlap; signed as exits 180A (north) and 180B (south)
181 4th Avenue
181A US 41 south (US 76 east, SR-8 south) – East Ridge Eastbound exit and westbound entrance
Missionary Ridge crossing
East Ridge 183 Germantown Road, Belvoir Avenue
184 Moore Road
Chattanooga 185 I-75 / US 74 east – Atlanta, Knoxville Eastbound exit and westbound entrance; eastern terminus and signed as exits 185A (south) and 185B (north); I-75 exit 2
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related routes[edit]

Auxiliary route[edit]

Paducah business loop[edit]

Interstate 24 Business
Location: Paducah, Kentucky
Length: 11.2 mi[16] (18.0 km)

Interstate 24 Business (BL 24) is a 11-mile (18 km) business loop of I-24 that runs through downtown Paducah, Kentucky that begins at I-24 and US 60 at exit 4 and ends at I-24 and Kentucky Route 1954 (KY 1954) at exit 11. The route follows US 60, US 60 Bus., and KY 1954.

The entire route is in McCracken County.

Location mi[16] km Destinations Notes
Paducah 0.0 0.0 I-24 – St. Louis, Nashville Western terminus; western end of US 60 overlap
2.4 3.9 US 60 east Eastern end of US 60 overlap; western end of US 60 Bus. overlap
2.6 4.2 US 45 (H.C. Mathis Drive)
8.2 13.2 US 60 / US 62 Eastern end of US 60 Bus. overlap; western end of KY 1954 overlap
11.0 17.7 I-24 – Nashville, St. Louis Eastern terminus; eastern end of KY 1954 overlap
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Adderly, Kevin (January 27, 2016). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration. Retrieved September 18, 2016. 
  2. ^ Google (February 15, 2008). "Overview Map of Interstate 24" (Map). Google Maps. Google. Retrieved February 15, 2008. 
  3. ^ Illinois Department of Transportation (2010). Williamson County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011. 
  4. ^ Illinois Department of Transportation (1994). Johnson County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011. 
  5. ^ Illinois Department of Transportation (2001). Massac County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011. 
  6. ^ Google (December 22, 2013). "Interstate 24 in Kentucky" (Map). Google Maps. Google. Retrieved December 22, 2013. 
  7. ^ Tennessee Department of Transportation (May 1, 2007). "Fiscal Years 2008–2010 Transportation Improvement Program". Tennessee Department of Transportation. 
  8. ^ a b Office of Secretary of State (1967). Illinois Blue Book, 1967–1968. State of Illinois. p. 746. Retrieved January 9, 2011 – via Illinois Digital Archives. 
  9. ^ Office of Secretary of State (1965). Illinois Blue Book, 1965–1966. State of Illinois. p. 720. Retrieved January 9, 2011 – via Illinois Digital Archives. 
  10. ^ Illinois Automobile Department (1977). Illinois Highway Map (Map). 1:762,500. Springfield: Illinois State Library. Retrieved January 9, 2011 – via Illinois Digital Archives. 
  11. ^ "Sinkhole Forces I-24 Closure in Grundy County". Nashville, TN: WTVF-TV. May 18, 2010. Retrieved May 18, 2010. 
  12. ^ "Sinkhole Repaired, I-24 Reopens". Chattanooga Times Free Press. May 22, 2010. Retrieved June 26, 2010. 
  13. ^ Illinois Technology Transfer Center (2013). "T2 GIS Data". Illinois Department of Transportation. Retrieved September 2, 2015. 
  14. ^ Kentucky Transportation Cabinet. "Official DMI Route Log". Kentucky Transportation Cabinet. Retrieved October 23, 2013. 
  15. ^ Long Range Planning Division-Mapping Section (2013). Official Transportation Map (Map). c. 1:633,600. Tennessee Department of Transportation. Retrieved December 21, 2013. 
  16. ^ a b Google (July 4, 2014). "Business Loop 24" (Map). Google Maps. Google. Retrieved July 4, 2014. 

External links[edit]

Route map: Bing / Google

KML is from Wikidata
Browse numbered routes
IL 23 Illinois US 24
US 23 Kentucky US 25
US 23  Tennessee  US 25
US 23 Georgia US 25