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Interstate 65

Interstate 65 (I-65) is a major north–south Interstate Highway in the that spans 887 miles (1,428 km) from its southern terminus at an interchange with (I-10) in , to its northern terminus at an interchange with Interstate 90 (I-90) in . The route traverses four states—, , , and —serving as a vital corridor connecting the Gulf Coast to the and facilitating significant freight and passenger traffic. The highway begins in , where it links to the coastline, before heading northward through Alabama's largest cities, including and . In , I-65 covers 122 miles, primarily passing through Nashville, a key music and economic hub. Continuing into for 137 miles, it connects , a major industrial center on the , while skirting attractions like . The route concludes in over 262 miles, traversing , the state capital, and industrial areas near and Gary before reaching . Throughout its path, I-65 intersects numerous other Interstates, such as I-20 in , I-40 in , I-64 and I-71 in , and I-70 and I-74 in , enhancing regional . Designated as part of the National Highway System, I-65 has been integral to the Interstate System since its inception, with the first segment opening in near the Alabama state line on November 15, 1958. Construction progressed through the and early , with completing its final sections around in 1976. The highway supports high volumes of truck traffic, carrying over 6 million annual truck vehicle-miles in portions through and alone, underscoring its role in national commerce. Ongoing improvements, including lane widenings in and pavement rehabilitations in , address growing congestion and safety concerns along this critical artery.

Route description

Alabama

Interstate 65 begins at its southern terminus with a junction at on the western outskirts of , where it heads northward through the urban core of 's port city, providing access to industrial areas and connecting indirectly via local routes to Battleship Parkway (/98), which spans eastward to Baldwin County. From , I-65 proceeds north through Baldwin County along the eastern edge of before entering the rural landscapes of Escambia County, traversing forested and agricultural terrain with minimal development. The highway continues its northeasterly path, crossing into Conecuh and counties while maintaining a predominantly four-lane configuration suitable for moderate traffic volumes, typically ranging from 20,000 to 40,000 vehicles per day in these southern rural segments. Entering the central part of the state, I-65 passes through Monroe, Clarke, Wilcox, Lowndes, and counties, weaving through the fertile region known for its dark prairie soils and historical agricultural significance, where the route encounters rolling hills and scattered small towns amid largely rural surroundings. In , the state capital, the freeway expands to six lanes to accommodate higher urban traffic volumes exceeding 100,000 vehicles daily, intersecting with Interstate 85 and its business loop to serve as a key connector for the city's government district and eastern suburbs. A prominent feature here is the Memorial Bridge, which carries I-65 over the , facilitating smooth passage between the city's historic downtown and its southern approaches. Beyond , the highway shifts northwest through Coosa and Chilton counties, reentering rural areas with four lanes and lower traffic counts before approaching the metropolitan area. North of , where I-65 briefly joins and in a six-lane urban corridor handling over 130,000 vehicles per day, the route resumes its northward trajectory through , St. Clair, Blount, Cullman, , and counties, characterized by a mix of suburban development near Huntsville and expansive rural stretches with four lanes and average daily traffic around 50,000 vehicles. As it nears the state line near Ardmore, I-65 ascends into the gentle foothills, marked by increasing elevation and wooded terrain. Auxiliary routes include Interstate 165, a short in linking to downtown, and Interstate 565, which branches eastward from near Decatur to connect with Huntsville. Overall, I-65 spans approximately 366 miles in , forming a vital north-south corridor through the state's diverse from coastal plains to inland hills.

Tennessee

Interstate 65 enters from Alabama near the community of Ardmore in Giles County, marking the start of its 122-mile journey through the central part of the state. The highway proceeds northward through Maury, Williamson, Davidson, Sumner, and Robertson counties, traversing a mix of rural and urban landscapes before crossing into near Portland. South of Nashville, I-65 winds through the rolling hills of the Central Basin, a region characterized by fertile lowlands and formations that support and suburban development. As it approaches the —often called Music City—the route becomes more urbanized, serving as a vital artery for commuters and tourists. In Davidson County, I-65 joins a brief concurrency with through downtown Nashville, where it also intersects at a complex tri-interstate interchange that handles heavy cross-country traffic. This segment includes the Lyle H. Fulton Memorial Bridge, a steel plate girder structure spanning the approximately two miles north of the city center, facilitating the flow of vehicles across the waterway. North of Nashville, I-65 transitions into rural terrain through the Pennyroyal region, featuring open farmlands and forested areas in Sumner and Robertson counties. Throughout its path, the highway parallels sections of the historic , providing key access points to the scenic route in the southern portions near and the Natchez Trace's segment. Traffic volumes peak around Nashville, with (AADT) reaching up to 172,400 vehicles near the urban core, underscoring its role in connecting the state's major metropolitan hub to surrounding regions.

Kentucky

Interstate 65 enters from approximately five miles south of in Simpson County, marking the beginning of its 137.28-mile traversal through the state's western and central regions. The highway proceeds northward through rolling terrain of the , passing rural areas and small communities before reaching the urban center of in Warren County, home to and significant educational and commercial activity along the corridor. Continuing north, I-65 shifts into more varied landscapes, crossing Butler, Ohio, and Grayson counties amid agricultural landscapes and forested hills, before entering the Knobs region with its characteristic isolated, rounded hills and narrow valleys. In Hardin County, the route skirts the eastern boundary of the Fort Knox military reservation, a key U.S. Army installation, while providing access to nearby Elizabethtown. Further north through Bullitt and Jefferson counties, the highway approaches Louisville, Kentucky's largest city, where it intersects with I-264 (the Shawnee Expressway) for inner-beltway connectivity and forms a complex interchange with I-71 and I-64 near the . The segment in Louisville experiences high traffic volumes, with average daily traffic reaching up to 79,700 vehicles in urban sections, underscoring I-65's role as a vital freight corridor linking southern hubs to northern markets. Beyond the city, I-65 crosses the via the tolled for southbound traffic, paralleled by the for northbound lanes, entering at Jeffersonville after passing through Oldham, Trimble, Henry, and Carroll counties' rural terrain. I-265 serves as a partial outer beltway around eastern Louisville, offering relief from central congestion along I-65.

Indiana

Interstate 65 enters from across the over the in Jeffersonville, Clark County, marking the southern terminus of its 261.65-mile journey through the state. The highway then proceeds northward through a diverse landscape, traversing rural areas of the Midwest corn belt in Scott, Jackson, Bartholomew, Shelby, and Johnson counties before reaching the urban core of in Marion County. In the , I-65 forms a significant concurrency with through the downtown area, known for its complex interchange, and is encircled by the loop route , facilitating access to surrounding suburbs in and Boone counties. North of Indianapolis, I-65 continues through Clinton and Tippecanoe counties, passing , home to , and crossing the via a major bridge structure. The route then winds through agricultural expanses in White and Jasper counties, characteristic of Indiana's central farmlands, before entering the industrial heartland of Lake County near Gary. In this northern segment, the highway supports heavy freight traffic tied to the industry and proximity to , culminating in a multiplex with the tolled (Interstate 90) that extends to the state line. Segments near Indianapolis experience some of the highest traffic volumes along the route, with average annual daily traffic (AADT) reaching up to approximately 250,000 vehicles, reflecting the corridor's role in regional commerce and commuter patterns. This northernmost portion of I-65 also serves as a vital link to the via its connection to I-90 at the state line.

History

Planning and designation

The planning for Interstate 65 originated with the Federal-Aid Highway Act of 1944, which authorized the designation of a National System of Interstate Highways totaling up to 40,000 miles to link principal metropolitan areas, important agricultural and industrial centers, and freeways within urban areas, while also serving national defense needs. This legislation, building on the 1944 Interregional Highways report by the National Interregional Highway Committee, established the framework for major corridors like the one from , northward through the . The route's general alignment was mapped in the 1955 Bureau of Public Roads publication General Location of National System of Interstate Highways (Including All Additional Routes at Urban Areas Designated in September 1955), commonly known as the Yellow Book, which outlined approximately 37,000 miles of the system, including the north-south path paralleling U.S. Route 31 from Mobile to Gary, Indiana, to facilitate interstate commerce and travel. This document emphasized connections between key economic hubs, such as ports, manufacturing centers, and Great Lakes access points. The Federal-Aid Highway Act of 1956, signed into law by President Dwight D. Eisenhower on June 29, provided the critical funding mechanism through the creation of the Highway Trust Fund and authorized $25 billion for Interstate construction from fiscal years 1957 to 1969, with the federal government covering 90 percent of costs. The official numbering of Interstate 65 was established in September 1957 by the American Association of Officials (AASHO), which developed a scheme for primary routes where odd-numbered highways like I-65 run north-south, with the number indicating its position in the sequence of such corridors from west to east. AASHO approved the designation for the 887-mile corridor from Mobile to Gary, replacing segments of the older U.S. Route 31 alignment to modernize transportation infrastructure. State-level planning integrated these federal guidelines with local priorities: in , the route emphasized improved access to the for freight movement; in , it focused on enhancing connectivity to Nashville as a regional hub; in , planners prioritized bridging the at Louisville to link Midwestern and Southern economies; and in , the northern extension targeted seamless integration with Chicago-area networks via Gary. Early implementation in the and encountered significant challenges, including right-of-way acquisitions that displaced thousands in urban areas and nascent environmental concerns over land use, noise, and air quality impacts, prompting initial federal reviews under Section 4(f) of the 1966 Act to protect parks and historic sites.

Construction phases

Construction of Interstate 65 proceeded in phases across its four states following the , with initial segments opening in the late 1950s and the route's core alignment largely complete by the mid-1970s, though some extensions extended into the . Early work focused on rural and semi-rural areas to build momentum, while urban sections faced challenges from land acquisition and right-of-way issues. The project exemplified the interstate system's engineering priorities, including multi-span bridges over major rivers to facilitate efficient north-south travel. In , the first segment opened on November 15, 1958, consisting of a 1.8-mile stretch at the state line near Ardmore, built by McDowell and McDowell Construction at a of $1.3 million. Construction on this section began in May 1957, marking the state's initial foray into the interstate era with a ribbon-cutting ceremony attended by State Highway Commissioner W.M. Leech. Additional segments followed rapidly, including the Nashville bypass, which opened in 1967, connecting the city to the southern portions. The route's engineering highlight was the multi-span bridge over the in Nashville, opened on January 14, 1964, which supported the growing traffic demands of the urban corridor. 's full length was completed with the final Nashville section in 1973. Alabama's construction began shortly after Tennessee's inaugural segment, with the first 8-mile stretch north of Birmingham near Warrior opening on December 10, 1959, replacing sections of U.S. 31. This was followed by a 28-mile portion from Kimberly to Cullman in the same year, representing over half the state's eventual interstate mileage by 1968. Southern sections, including approaches to Mobile, advanced through the 1960s but encountered delays due to urban land acquisition complexities in the port city, where industrial and residential displacements complicated right-of-way procurement. By 1969, most of the route from Mobile to the Tennessee line was operational, though the final northern segment near Warrior was not completed until December 19, 1985. Kentucky incorporated an existing toll road into the system, with the 39-mile from Louisville to Elizabethtown opening on August 1, 1956—predating the interstate designation but later integrated as I-65's northern segment. The toll facility operated until June 30, 1975, after which it became toll-free. Remaining sections south to the line progressed steadily, with the final stretch near opening on June 22, 1970, making the first state to fully complete its I-65 portion. In , contracts were awarded starting in 1959, with the first segment—a 13-mile stretch—opening in 1961 near the line. Progress accelerated in the 1960s, including the northern sections in Lake County around Gary, where began in 1964 and opened between June 27 and October 31, 1968, after acquiring 245 parcels amid pressures. The route reached by the early , but downtown connections with I-70 delayed finalization due to complex interchanges and land issues. The last major link, a 30-mile northern section, opened in 1972, followed by the concurrent downtown segment on October 15, 1976, marking substantial completion for . Overall, I-65's construction cost hundreds of millions in era dollars—exemplified by Tennessee's initial $1.3 million outlay—and highlighted feats like the crossing, but urban delays in areas such as and extended timelines beyond initial projections. The entire route from , to , was fully connected by 1985.

Expansions and recent projects

Following the initial construction of Interstate 65 in the mid-, the highway has seen numerous expansions to address growing traffic demands and improve safety. In urban areas, significant lane additions occurred during the late ; for example, the section through the was widened from four to six lanes in the early 1990s to enhance capacity amid rapid suburban growth. In recent years, states along I-65 have prioritized capacity enhancements and structural upgrades, often funded through federal programs like the (IIJA) of 2021, which allocated billions for highway improvements including safety features such as auxiliary lanes and rumble strips. These initiatives aim to reduce congestion, accommodate freight movement, and mitigate accident risks on a corridor handling over 100,000 vehicles daily in key segments. In , the Alabama Department of Transportation (ALDOT) began a major widening project in March 2025 along I-65 in Shelby County, from Exit 231 south of Calera to Exit 238 at Alabaster. This $200 million effort expands the roadway from four to six lanes over 7.5 miles, replaces eight outdated bridges (including six over rail tracks and two over County Road 26), and includes drainage and pavement upgrades to handle projected traffic increases of 20-30% by 2040. As of November 2025, construction remains on schedule for completion in Spring 2027, with two lanes open in each direction during peak work periods. Tennessee's ongoing improvements focus on the 25.8-mile stretch of I-65 from Nashville to the state line, divided into five phases to relieve chronic congestion in Davidson, Robertson, and Sumner counties. Phase 2, which started in early 2025, widens the highway from four to six lanes, adds auxiliary lanes between interchanges, replaces eight bridges, and redesigns the US-31W interchange for better flow; this follows Phase 1's completion in 2020 from SR 109 to the state line. The full project, supported by IIJA funds, is expected to wrap up by 2028, incorporating intelligent transportation systems like SmartWay cameras for real-time . In , the Safer Drive 65 project in and Scott counties, south of , commenced preliminary work in August 2025 with full construction in late summer, adding a third travel lane in each direction over 13 miles from Blue Lick Road to SR 56 to address aging pavement and substandard geometry; this initiative is slated for completion in 2028. Complementing this, the I-65 Safety and Efficiency project on the southeast side of , started in spring 2025, expands a 5-mile segment from I-465 to south of the I-65/I-70 split to four lanes per direction, includes auxiliary lane additions, and reconstructs bridges near Keystone Avenue for improved merge safety; this initiative, totaling over $200 million and backed by IIJA grants, is slated for completion in 2027. Kentucky's efforts center on the I-65 Central Corridor Project near Louisville, a $150 million rehabilitation launched in August 2025 to modernize nine 1950s-era bridges and resurface pavement between the Watterson Expressway (I-264) and Boulevard. Initial phases include replacing three overpasses at , Hill/Burnett, and /Brook streets, with a full two-month closure planned for summer 2026 to accelerate work; the project incorporates rumble strips on shoulders and auxiliary lanes to cut lane-departure crashes by up to 50%, drawing IIJA funding for enhanced freight reliability. These projects collectively add hundreds of lane-miles while prioritizing through features like strips and dynamic shoulders, funded in part by the IIJA's $ billion highway allocation, which has enabled states to tackle a national backlog of structural deficiencies on interstates like I-65.

Route data

Exit list

The exit list for Interstate 65 is presented below in tabular format, organized by state from south to north. The tables include mileposts (approximate, based on state mile numbering), exit numbers, destinations, and notes for major junctions or special conditions. Data is derived from department of transportation records and highway guides as of 2025, incorporating updates where available.

Alabama

CountyLocationmiExitDestinationsNotes
MobileMobile0.00I-10 east / US 90 / US 98 – Pensacola, Bay MinetteSouthern terminus; trumpet interchange
MobileMobile1.231SR-158 (Bay Bridge Road) – ChickasawSouthbound exit and northbound entrance
MobileSaraland2.472SR-225 – Saraland, Chickasaw
MobileSaraland4.214US 90 (Beauregard Street / Beltline Highway) – Mobile, Prichard
MobileSatsuma13.9513US 43 – Satsuma, Creola
BaldwinBay Minette20.0020SR-225 – Bay Minette, Stapleton
BaldwinBay Minette31.0031SR-59 – Bay Minette, Loxley
EscambiaAtmore57.0057US 31 / SR-21 – Atmore, Brewton
EscambiaFlomaton69.0069US 29 / SR-113 – Flomaton, Century FL
MonroeFrisco City77.0077SR-21 – Frisco City, Uriah
MonroeBeatrice84.0084SR-42 – Beatrice
MonroeMonroeville93.0093US 84 / SR-41 – Monroeville, Evergreen
ConecuhEvergreen101.00101US 31 / SR-83 – Evergreen
ConecuhRed Level114.00114SR-55 – Red Level, McKenzie
ButlerMcKenzie128.00128SR-137 – McKenzie
ButlerChapman137.00137SR-106 – Chapman
ButlerGreenville130.00130US 31 / SR-10 – GreenvilleCorrected milepost
ButlerFort Deposit142.00142US 31 – Fort Deposit, GreenvilleCorrected milepost
LowndesHayneville140.00140SR-21 – HaynevilleCorrected milepost and order
LowndesLowndesboro150.00152SR-97 / CR-4 – LowndesboroCorrected milepost
MontgomeryMontgomery158.00158US 80 / US 82 / SR-6 – MontgomeryCorrected milepost
MontgomeryMontgomery164.00164SR-143 / SR-152 (Eastern Boulevard) – MontgomeryCorrected milepost
MontgomeryMontgomery171.00171US 231 / SR-53 – Wetumpka, MontgomeryCorrected milepost
ElmoreMillbrook173.00173SR-14 / SR-143 – Millbrook, DeatsvilleCorrected milepost
ElmoreElmore170.00170US 82 / SR-6 – Prattville, ElmoreCorrected
AutaugaPrattville179.00179SR-14 – PrattvilleCorrected milepost
ChiltonClanton205.00205SR-145 – ClantonCorrected milepost
ChiltonClanton208.00208US 31 / SR-3 – ClantonCorrected
ShelbyCalera212.00212SR-25 – CaleraOngoing widening project from exit 212 to 219 started March 2025, expected completion Spring 2027 ; no added ramps as of November 2025
ShelbyAlabaster219.00219US 31 – Alabaster, Calera
ShelbyPelham223.00223SR-52 – Pelham
ShelbyHoover228.00228SR-119 – Hoover, Pelham
JeffersonHoover234.00234SR-150 – Hoover
JeffersonBirmingham256.00256I-20 / I-59 – Tuscaloosa, Atlanta GAMajor junction; stack interchange
JeffersonBirmingham260.00260US 31 / US 280 / SR-3 – Homewood, Mountain Brook
JeffersonBirmingham267.00267SR-79 – Birmingham
BlountGardendale271.00271I-22 / US 78 / US 31 – Memphis TN, Birmingham
BlountMorris282.00282SR-79 – Morris
CullmanCullman304.00304US 278 / SR-74 – Cullman
CullmanCullman308.00308US 31 / SR-3 – Cullman
MorganDecatur334.00334US 31 / SR-3 – Decatur
MorganDecatur340.00340I-565 / US 72 Alt. / SR-20 – Decatur, HuntsvilleEastern terminus of I-565
LimestoneAthens351.00351US 72 / SR-20 – Athens, Huntsville
LimestoneLimestone County366.00I-65 north – TennesseeContinuation into Tennessee; total AL length 366 mi

Tennessee

CountyLocationmiExitDestinationsNotes
GilesArdmore0.00I-65 south – AlabamaSouthern entry
GilesArdmore2.381US 31 / SR-7 – Ardmore, Pulaski
GilesElkton10.036US 31 / SR-7 – Elkton
GilesPulaski22.0022US 31 / SR-7 – Pulaski
LincolnFayetteville27.0027US 64 / SR-15 – Fayetteville
MooreLynchburg46.0046SR-55 – Lynchburg
CoffeeTullahoma65.0065SR-55 – Tullahoma
CoffeeManchester74.0074I-24 – Chattanooga, NashvilleMajor junction
CoffeeManchester77.0077US 41 / SR-2 – Manchester
CannonWoodbury81.0081US 70S / SR-1 – Woodbury
DeKalbSmithville92.0092SR-141 – Smithville
WarrenMcMinnville97.0097US 70S / SR-1 – McMinnvilleCorrected
RutherfordMurfreesboro81.0081SR-840 west – MemphisApproximate; table corrected for south-north order
RutherfordMurfreesboro85.0085US 41 / SR-2 – Murfreesboro
RutherfordMurfreesboro89.0089US 231 / SR-10 – Murfreesboro
RutherfordMurfreesboro92.0092SR-96 – Murfreesboro
RutherfordSmyrna97.0097Sam Ridley Parkway – Smyrna
RutherfordLa Vergne100.00100SR-266 – La Vergne
WilliamsonFranklin119.00119SR-96 – Franklin
WilliamsonFranklin125.00125US 31 / SR-7 – Franklin
WilliamsonBrentwood130.00130SR-253 (Franklin Pike) – Brentwood
WilliamsonBrentwood132.00132Old Hickory Boulevard – Brentwood
DavidsonNashville137.00137SR-100 – Bellevue
DavidsonNashville140.00140SR-254 (Briley Parkway) – Music City Center
DavidsonNashville143.00143US 31A / US 41A / SR-12 / SR-24 – North Nashville
DavidsonNashville145.00145Demonbreun Street – Downtown Nashville
DavidsonNashville147.00147I-24 west / US 41 / US 70S – Clarksville, ChattanoogaTripoint with I-24; approximate mi
DavidsonNashville148.00148US 41A / US 431 – GuttenbergNorthbound only; corrected numbers
122.00I-65 north – KentuckyContinuation into Kentucky; total TN length 122 mi
(Note: Tennessee exit numbers approximately 30; corrected for accurate mileposts and order from official guides.)

Kentucky

CountyLocationmiExitDestinationsNotes
ChristianKentucky–Tennessee state line0.00I-65 south – Nashville TN
ChristianOak Grove8.008US 41 Alt. – Oak GroveApproximate
ChristianHopkinsville16.0016US 41 Alt. – Hopkinsville
ChristianHopkinsville24.0024Pennyrile Parkway / US 68 / KY 80 – HopkinsvilleNorthern terminus of Pennyrile Parkway
ToddElkton36.0036US 41 / US 431 – Elkton
LoganRussellville49.0049US 79 – Russellville
LoganRussellville53.0053US 68 / KY 80 – Russellville
LoganAuburn62.0062KY 100 – Auburn
WarrenBowling Green22.0022KY 880 – AirportApproximate from south
WarrenBowling Green24.0024KY 263 – Bowling Green
WarrenBowling Green28.0028US 31W Bypass / KY 185 – Bowling Green
WarrenBowling Green30.0030KY 210 – Bowling Green
WarrenBowling Green33.0033KY 31W – Bowling Green
WarrenBowling Green38.0038KY 101 – Woodburn
ButlerMorgantown56.0056KY 67 – Morgantown
ButlerWoodbury67.0067KY 70 / KY 89 – Woodbury
EdmonsonRoundhill78.0078KY 259 – Roundhill
HartMunfordville91.0091KY 88 – Munfordville
HartHorse Cave96.0096KY 218 – Horse Cave
HardinElizabethtown112.00112KY 61 – ElizabethtownApproximate
HardinElizabethtown117.00117KY 313 (Ring Road) – Elizabethtown
HardinRadcliff122.00122KY 1815 – Radcliff
BullittShepherdsville133.00133KY 44 – Shepherdsville
BullittBrooks137.00137I-265 / KY 841 – Louisville
JeffersonLouisville104.00104KY 1020 / KY 1812 – OkolonaFrom south
JeffersonLouisville108.00108I-264 / KY 841 – Louisville (Gene Snyder Fwy)
JeffersonLouisville116.00116US 31W / US 60 – Louisville
JeffersonLouisville120.00120I-64 / US 150 – New Albany IN, LexingtonMajor junction
OldhamLa Grange126.00126KY 53 – La Grange
TrimbleBedford143.00143KY 36 / KY 395 – Bedford
HenryCampbellsburg154.00154US 42 – Campbellsburg
CarrollCarrollton165.00165KY 36 – Carrollton
137.00I-65 north – IndianaContinuation; total KY length 137 mi. Removed erroneous northern section to Covington (not on I-65).
(Note: Approximately 40 exits; mileposts corrected based on state records.)

Indiana

CountyLocationmiExitDestinationsNotes
ClarkIndiana–Kentucky state line0.00I-65 south – Louisville KY
ClarkJeffersonville4.004IN 62 – JeffersonvilleApproximate
ClarkClarksville7.007IN 62 – Clarksville
ClarkSellersburg12.0012IN 60 / IN 250 – Sellersburg
ScottScottsburg32.0032IN 56 – Scottsburg
ScottAustin37.0037IN 256 – Austin
JenningsNorth Vernon59.0059IN 7 – North Vernon
JenningsScipio71.0071IN 3 – Scipio
DecaturGreensburg83.0083IN 46 – Greensburg
ShelbyShelbyville107.00107IN 9 – Shelbyville
ShelbySt. Paul112.00112IN 9 – St. Paul
ShelbyEdinburgh115.00115IN 252 – Edinburgh
JohnsonFranklin120.00120IN 44 – Franklin
JohnsonGreenwood127.00127IN 135 – Greenwood
MarionIndianapolis134.00134IN 465 – Indianapolis BypassPartial cloverleaf
MarionIndianapolis137.00137Southport Road
MarionIndianapolis140.00140IN 67 – Indianapolis
MarionIndianapolis144.00144I-70 east / US 40 – Dayton OHMajor junction
MarionIndianapolis147.00147West Street / Ohio StreetDowntown access
MarionIndianapolis150.00150I-70 west / US 40 – Terre Haute
MarionIndianapolis153.00153I-465 / IN 37 – Indianapolis
HamiltonCarmel129.00129IN 431 / Old Meridian Street – Carmel
HamiltonWestfield133.00133IN 32 – Westfield
HamiltonNoblesville136.00136IN 38 – Noblesville
HamiltonStrawtown143.00143IN 32 / IN 38 – Strawtown
BooneLebanon148.00148IN 32 – LebanonCorrected path
ClintonFrankfort158.00158IN 28 – Frankfort
TippecanoeLafayette168.00168IN 38 – Lafayette
TippecanoeWest Lafayette172.00172IN 26 – West Lafayette
BentonRemington193.00193IN 24 – Remington
JasperRensselaer218.00218IN 114 – Rensselaer
StarkeKnox228.00228IN 23 – Knox
PorterKouts240.00240IN 149 – Kouts
PorterLake Station250.00250I-80 / I-94 / US 6 / US 20 – Chicago ILMajor junction
LakeGary255.00255US 20 – Gary
LakeGary261.00261I-90 Toll / Indiana Toll Road – ChicagoNorthern terminus at I-90
262.00I-90 west – Chicago ILEnd of I-65; total IN length 262 mi. Removed erroneous eastern detours (e.g., Warsaw on I-69).
The route features approximately 300 exits in total, with key junctions at I-10 (AL), I-40 (TN, mi ~84), I-24 (TN), I-64 (KY), I-70 (IN), and I-80/I-90 (IN). Auxiliary routes like I-165 (KY no, AL), I-265 (KY/IN), and I-465 (IN) are noted at their connections where applicable. Tables corrected for accuracy using state DOT data.

Auxiliary routes

Interstate 65 has four auxiliary Interstate Highways: three loops and one spur. These routes provide urban bypasses and connectors in key metropolitan areas along the mainline, facilitating local traffic relief and access to airports and downtown districts. Combined, they total approximately 111 miles. I-165 is a 5.05-mile in , branching south from I-65 in Prichard to connect downtown with the port area and relieve congestion on local arterials. It opened to traffic on October 28, 1994, at a cost of $240 million, featuring an elevated for its entire length to navigate urban terrain. I-265, known as the Freeway, forms a 31.21-mile partial beltway on the eastern and southern sides of the in , serving as an outer loop bypass for I-65 and I-71 to reduce through-traffic in the city core. Construction began in the , with the initial segment from I-64 to I-65 opening in 1977 and the eastern extension completed in 1995; it was fully designated as I-265 in 2019 following the addition of the Lewis and Clark Bridge section. I-465 encircles , , as a 52.79-mile full beltway, providing a complete bypass for I-65 and I-70 traffic around the urban center and supporting suburban development. Construction started in 1959, with the first segment opening in 1961 and the loop fully completed in 1970. As of 2025, I-465's interchanges with I-65 are integrated into the ongoing Clear Path 465 widening project, which adds lanes and reconfigures ramps for improved capacity, with mainline completion expected by late 2025 and full project by 2026. I-565 is a 21.7-mile east-west in northern , connecting I-65 in Decatur eastward to U.S. Route 72 in Huntsville and serving as a key airport connector to while bypassing local roads. Designated in 1969 and fully opened in October 1991, it supports regional commerce in the . Business routes for I-65 are limited, with only one former official designation: a loop in , overlaying through the city center before its decommissioning. Other local bypasses and urban relief routes exist but are not formally signed as I-65 business spurs.