U.S. Route 231 in Indiana

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U.S. Route 231 marker

U.S. Route 231
US 231 highlighted in red
Route information
Maintained by INDOT
Length 284.277 mi[2] (457.499 km)
Existed August 22, 1952[1]–present
Major junctions
South end US 231 at Kentucky state line
  I-64 in Dale
US 50 / US 150 in Loogootee
I-69 near Crane
I-70 near Cloverdale
US 40 near Putnamville
I-74 near Crawfordsville
US 52 in Lafayette
I-65 near Wolcott
I-65 in Crown Point
North end US 41 in St. John
Counties Spencer, Dubios, Daviess, Martin, Greene, Owen, Putnam, Montgomery, Tippecanoe, White, Jasper, Porter, Lake
Highway system
SR 229 SR 232

U.S. Route 231 (US 231) in Indiana is a main north–south highway in the western part of the state. The southern terminus of US 231 is at the Kentucky state line and the northern terminus is at US 41 just south of St. John. The highway is a mixture of expressway and two-lane roadway. The expressway is mainly in southern Indiana and around the Lafayette area, with the rest mainly being two-lanes.

US 231 was initially signed as a state road from Spencer to Lafayette. North of Lafayette, the road was a U.S. Highway until it was decommissioned in favor of US 231. This route will become an expressway in southern Indiana from the current northern terminus of the expressway to the future interchange at Interstate 69 (I–69).

Route description

US 231 contains two segments included as a part of the National Highway System (NHS). The first segment runs from the Kentucky state line to SR 558 and the second segment runs from I-70 to Lafayette.[3] The highway is maintained by the Indiana Department of Transportation (INDOT) like all other U.S. Highways in the state. The department tracks the traffic volumes along all state highways as a part of its maintenance responsibilities using a metric called average annual daily traffic (AADT). This measurement is a calculation of the traffic level along a segment of roadway for any day of the year. In 2010, INDOT calculated that the section of US 231 with the lowest average daily traffic levels – with 1,100 vehicles and 180 commercial vehicles – was from US 52 to I–65. The peak traffic volumes on US 231 was 27,990 vehicles and 1,950 commercial vehicles AADT along the section concurrent with US 52.[4]

Southern Indiana

The William H. Natcher Bridge over the Ohio River between Kentucky and Indiana

US 231 enters Indiana on the William H. Natcher Bridge over the Ohio River from Kentucky. The road enters as a four–lane divided highway and immediately has a folded diamond interchange with State Road 66 (SR 66). The highway heads north passing a power plant and through farmland towards Dale; the expressway then intersects with SR 70. The route turns northeast, passing through woods, just south of Lincoln State Park. The road turns north having an interchange with SR 162; this exit allows access to the State Park. The expressway then turns northwest and enters Dale. On the south side of Dale, the roadway intersects SR 62; this is the old route of US 231. The highway turns northeast again, around the northwest side of Dale. Subsequently, the route has an interchange with I–64. At the Dubois County line, the highway enters the Eastern Time Zone. Also at the Dubois County line, the expressway ends and US 231 becomes a two-lane rural highway.[5][6]

US 231 heads north-northeast towards Huntingburg, passing through rural farmland. The highway enters Huntingburg from the south, passing through residential areas. The route has a traffic light in downtown Huntingburg with SR 64. North of downtown Huntingburg, the road passes through commercial properties, before leaving town. The highway then heads north towards Jasper, passing by a mix of both farmland and woodland. US 231 enters Jasper from the south, passing by commercial lots. West of downtown Jasper, the route begins a concurrency with SR 56, with both routes heading east. The concurrency enters downtown and has a traffic light at the northern terminus of SR 64. That is intersection US 231 and SR 56 turn towards the north. The two highways head north into residential areas. The road leaves Jasper heading northeastward toward Loogootee. In Haysville, the concurrency with SR 56 ends. US 231 heads north-northeast from SR 54, before turning more northward. The highway enters Loogootee and begins a concurrency with both U.S. Route 50 (US 50) and US 150. The concurrency travels due north, then turns northeast and enters downtown Loogootee. In downtown, the concurrency ends, with US 50 and US 150 heading east and US 231 heading northwest. The highway then heads north towards Bloomfield, passing the Naval Surface Warfare Center Crane Division.[5][6]

The route enters Bloomfield from the south, beginning a concurrency with SR 54 in downtown. This intersection is also the southern terminus of SR 157. US 231 and SR 54 head due west after about 4 miles (6.4 km), after which SR 54 keeps heading due west and US 231 turns due north. This intersection is the northern terminus of SR 57. US 231 then heads north for about 4 miles (6.4 km) until SR 67. The two routes head northeast heading towards Spencer, along the banks of the White River. The highway turns towards the north away from the river and the concurrency ends. SR 67 heads northeast again and US 231 heads northwest. The road then travels towards Cloverdale, passing through an intersection with SR 42. The route enters Cloverdale passing by a mix of commercial and residential properties. On the north side of Cloverdale, the highway becomes a four-lane divided highway, with an interchange at I–70.[5][6]

Northern Indiana

North of I–70, US 231 narrows to a two-lane highway, heading towards the northwest. The route has a traffic light at US 40, south of Greencastle. The highway enters Greencastle from the southeast and begins to turn north, passing DePauw University to the west. In downtown Greencastle, the highway has a traffic light with the western terminus of SR 240. US 231 leaves Greencastle heading further north for Crawfordsville, passing through a traffic light at US 36, a brief concurrency with SR 236, and an intersection with SR 234. On the south side of Crawfordsville, the route becomes a four-lane undivided highway, passing through commercial development. The road then heads toward downtown Crawfordsville, and begins a concurrency with both SR 32 and SR 47. The concurrency passes Wabash College and has an intersection with US 136. At this intersection, the concurrency with SR 32 and SR 47 turns east onto US 136. US 231 becomes a four-lane divided highway north of US 136, heading through the north side of Crawfordsville. Through the north side of Crawfordsville, the road passes through mainly residential land, with a few commercial properties near the interchange with I–74.[6][7]

North of I–74, the road returns to a two–lane rural highway and heads north for Lafayette. On the way to Lafayette, the route passes through rural farmland, paralleling a CSX rail line.[8] The road enters Lafayette and becomes a four-lane divided highway as it runs through a mix of farmland and residential areas. The highway has a traffic light at SR 25. As of 2013, the route crosses the Wabash River and heads for West Lafayette, where it runs along the south and west edges of the Purdue campus.[9] US 231, which has been joined by US 52 by this point,[10] continues north for a few miles, then turns westbound. US 231 then leaves the concurrency, while US 52 continues northwest and US 231 heads due north.[6][7]

North of US 52, the highway becomes a two-lane rural highway passing through farmland. US 231 has an interchange with I–65; this is the first of four interchanges with I–65. The route begins a concurrency with US 24 in Wolcott. The two highways head north through Wolcott and then turn due west. After Wolcott, the concurrency crosses into Jasper County and into the Central Time Zone. The two routes have an interchange at I–65 east of Remington. In Remington, the concurrency ends, with US 24 continuing due west and US 231 heading due north again. The road then enters Rensselaer, heads north and turns northeast, with a traffic light at SR 114. North of the traffic light, the road makes a sharp turn and heads northwest. North of Rensselaer, the route turns north once again, heading towards SR 10. At SR 10, US 231 turns due west, concurrent with the state road. After 2.5 miles (4.0 km), the concurrency ends, with SR 10 traveling south and US 231 continuing north. The highway then enters Porter County on a bridge over the Kankakee River.[6][7]

North of the Kankakee River, the route begins a concurrency with SR 2 at a four-way stop south of Hebron. The concurrency enters Hebron from the south, passing mainly residential areas. The concurrency has an intersection with the western terminus of SR 8 at the main intersection in downtown. North of downtown, the concurrency with SR 2 ends with SR 2 heading due north and US 231 heading northwest. The road leaves Hebron, passing more residential properties and heading towards Crown Point. On the southeast side of Crown Point, the route has its last interchange with I–65. After I–65, the road has an intersection with SR 55. Passing through the southeast side of Crown Point, the road is lined with housing additions on both sides. The road then begins a concurrency with SR 55 and the two highways head for downtown Crown Point. In downtown Crown Point, the routes go around the county courthouse on one-way streets. The concurrency ends when the state road heads due north. US 231 then leaves Crown Point, heading towards its northern terminus on the south side of St. John. The route turns west for the last few miles to meet US 41. US 231 meets US 41 at an intersection controlled by a traffic light.[6][7]


Before US 231

U.S. Route 152
Location LafayetteSt. John
Existed February 1935[12]–1938[11]

Between 1918 and 1926, US 231 was signed SR 18 from Rockport to Old SR 4 and then followed Old SR 4 to Jasper. From Jasper to Bloomfield, the route consisted of unimproved county roads. From Bloomfield to Switz City, the future US 231 followed Old SR 30. North of Switz City, the road was SR 12, which eventually became SR 67. From Jasper to Lafayette, the road was numbered as SR 32. Where the future US 231 followed SR 29, the route became what is now US 52. From Wolcott to Remington, the route followed SR 7. North of Remington, the road was numbered SR 8 until reaching Hebron. From Hebron to the current terminus was an unimproved county road. This system was changed in 1926 when the U.S. Highways were created.[13][14][15][16]

The current number system in Indiana was put into place in 1926. The route that would become US 231 was signed as SR 45 from Rockport to SR 58 in Scotland. From Scotland to Bloomfield, it was an unimproved county road. From Bloomfield to Spencer, the future US 231 was given the same number that the route is concurrent with today. North of Spencer to Lafayette it was numbered SR 43. The route that US 231 follows today along US 52 was the same. The section of US 231 north of US 52 to US 41 was signed as US 152. The US 152 designation was used between February 1935[12] and 1938; in 1938 US 152 was decommissioned.[17][18][19][20] The road then went back to state road numbers; this lasted until 1952 when US 231 was commissioned and signs installed.[1][21][22]

As US 231

US 231 was first signed in Indiana in 1954; the whole length of US 231 was two-lanes. In Southern Indiana, the road has been widened from a two-lane surface road to a four-lane divided expressway. The expressway construction began in 2002 with a new bridge over the Ohio River; the state designated the old bridge near Owensboro, KY as SR 161. When the bridge was completed, traffic had to exit the expressway at the first exit on to SR 66. The expressway was built north towards Dale on all new terrain, with some of the old highway being signed as SR 161, SR 62, and the rest becoming county roads. US 231 was moved onto the expressway in March 15, 2011.[6][23] In Northern Indiana, a new routing of US 231 around the south and west sides of the Lafayette/West Lafayette area opened September 13, 2013.[9] Previously, US 231 entered downtown Lafayette from the south on 4th Street, passed over the Wabash River on the Harrison Bridge, then continued north and northwest in West Lafayette on Northwestern Avenue passing Purdue University, until merging with US 52.


A project is planned that will put US 231 on a four-lane divided highway around Huntingburg and Jasper in the southern part of the state.[24]

Major intersections

County Location mi[2] km Destinations Notes
Daviess 0.000 0.000 US 231 south – Owensboro Kentucky state line
Ohio River William H. Natcher Bridge
Spencer Ohio Township 0.251 0.404 SR 66 – Tell City, Rockport, Evansville Interchange
Grass Township 7.122 11.462 SR 70 east Western terminus of SR 70
township line
SR 162 – Gentryville, Santa Claus Interchange
Dale 18.745 30.167 SR 62 west – Gentryville South end of SR 62 concurrency; intersection is a J-turn
19.822 31.900 SR 62 east / SR 68 west – Dale North end of SR 62 concurrency; intersection is a J-turn
I-64St. Louis, Louisville Interchange
Dubois Huntingburg 29.279 47.120 SR 64 – Oakland City, Marengo
Jasper 33.938 54.618 SR 162 south – Ferdinand Northern terminus of SR 162
35.906 57.785 SR 56 west – Petersburg Southern end of SR 56 concurrency
36.286 58.397 SR 164 east – Ferdinand Western terminus of SR 164
Haysville 43.122 69.398 SR 56 east – French Lick Northern end of SR 56 concurrency
Martin Loogootee 56.410 90.783 US 50 west / US 150 west – Washington Southern end of US 50/US 150 concurrency
56.894 91.562 US 50 east / US 150 east – Shoals Northern end of US 50/US 150 concurrency
Daviess Madison Township 67.092 107.974 SR 645 east – Burns City Western terminus of SR 645
69.129 111.252 SR 58 west – Odon Southern end of SR 58 concurrency
72.448 116.594 SR 558 east – NSA Crane Western terminus of SR 558
Greene Taylor Township 73.713 118.630 SR 45 north / SR 58 east – Bloomington, Bedford Southern terminus of SR 45; northern end of SR 58 concurrency
I-69 – Evansville, Bloomington I-69 exit 87
Bloomfield 81.610 131.339 SR 54 east / SR 157 north – Bloomington Eastern end of SR 54 concurrency; southern terminus of SR 157
Fairplay Township 85.635 137.816 SR 54 east / SR 57 south – Newberry, Switz City Western end of SR 54 concurrency
88.926 143.113 SR 57 south / SR 67 south – Vincennes Southern end of SR 67 concurrency; north end of SR 57
Worthington 92.204 148.388 SR 157 south Southern end of SR 157 concurrency
92.250 148.462 SR 157 north Northern end of SR 157 concurrency
Owen Spencer 109.597 176.379 SR 46 west – Terre Haute Western end of SR 46 concurrency
110.461 177.770 SR 46 east – Bloomington Eastern end of SR 46 concurrency
Montgomery Township 115.842 186.430 SR 67 north – Indianapolis Northern end of SR 67 concurrency
Putnam Cloverdale 126.540 203.646 SR 42 – Mooresville, Lieber State Recreation Area
I-70 – Indianapolis, St. Louis
Warren Township 132.633 213.452 US 40 – Terre Haute, Indianapolis
Greencastle 136.640 219.901 SR 240 east Western terminus of SR 240
Monroe Township 146.261 235.384 US 36 – Danville, Rockville, Raccoon State Recreation Area
township line
151.924 244.498 SR 236 west – Russellville, Marshall Southern end of SR 236 concurrency
152.430 245.312 SR 236 east – Roachdale Northern end of SR 236 concurrency
Montgomery Scott Township 157.609 253.647 SR 234 – Shades State Park, Ladoga
Crawfordsville 164.601 264.900 SR 32 west / SR 47 south Southern end of SR 32/SR 47 concurrency
165.839 266.892 US 136 / SR 32 east / SR 47 north Northern end of SR 32/SR 47 concurrency
I-74 – Indianapolis
Tippecanoe Randolph Township 181.023 291.328 SR 28 – Frankfort, Attica
Lafayette 190.110 305.952 US 52 east / SR 25 south South end of US 52 concurrency; north end of southern segment of SR 25
193.416 311.273 SR 26 west East end of western segment of SR 26
196.652 316.481 Sagamore Parkway
Shelby Township 200.655 322.923 US 52 west Western end of US 52 concurrency
White Round Grove Township 209.742 337.547 SR 18 – Fowler, Brookston
West Point Township 214.025–
I-65 – Indianapolis, Chicago
Wolcott 219.948 353.972 US 24 east – Monticello Eastern end of US 24 concurrency
Jasper Carpenter Township 224.805–
I-65 – Indianapolis, Chicago
Remington 226.673 364.795 US 24 west – Kentland Western end of US 24 concurrency
Carpenter Township 229.592–
I-65 – Indianapolis, Chicago
Jordan Township 233.627 375.986 SR 16 – Monon, Brook
Rensselaer 238.618 384.018 SR 114 to I-65
Union Township 244.959 394.223 SR 14 – Parr, Enos, Winamac
Walker Township 253.041 407.230 SR 110 west – Roselawn Eastern terminus of the western section of SR 110
256.035 412.048 SR 10 east – Wheatland Eastern end of SR 10 concurrency
Demotte 258.400–
SR 10 west – Roselawn Western end of SR 10 concurrency
Porter Boone Township 265.462 427.220 SR 2 west – Lowell Southern end of SR 2 concurrency
Hebron 267.488 430.480 SR 8 east Western terminus of SR 8
267.642 430.728 SR 2 east – Valparaiso Northern end of SR 2 concurrency
Lake Crown Point 275.738–
I-65 – Indianapolis, Gary
276.674 445.264 SR 53 north – Merrillville Southern terminus of SR 53
278.116 447.584 SR 55 south Eastern end of SR 55 concurrency
278.714 448.547 SR 55 north – Gary Western end of SR 55 concurrency
St. John 284.277 457.499 US 41 – Terre Haute, Hammond Northern terminus of US 231
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also


  1. ^ a b Weingroff, Richard (April 7, 2011). "US 231 – Indiana to Florida: How a Highway Grew". Highway History. Federal Highway Administration. Retrieved May 15, 2012.
  2. ^ a b Indiana Department of Transportation (July 2016). Reference Post Book (PDF). Indianapolis: Indiana Department of Transportation. Retrieved February 9, 2017.
  3. ^ National Highway System: Indiana (PDF) (Map). Cartography by FHWA. Federal Highway Administration. December 2003. Retrieved May 2, 2011.
  4. ^ "INDOT Traffic Zones". Indiana Department of Transportation. 2010. Archived from the original on May 5, 2011. Retrieved July 9, 2012.
  5. ^ a b c Google (May 14, 2012). "Overview map of US 231 from Kentucky to Cloverdale" (Map). Google Maps. Google. Retrieved May 14, 2012.
  6. ^ a b c d e f g h Indiana Transportation Map (PDF) (Map) (2011–12 ed.). Cartography by INDOT. Indiana Department of Transportation. 2011. Retrieved May 14, 2012.
  7. ^ a b c d Google (May 14, 2012). "Overview map of US 231 from Cloverdale to St. John" (Map). Google Maps. Google. Retrieved May 14, 2012.
  8. ^ Indiana Railroad Map (PDF) (Map). Cartography by INDOT. Indiana Department of Transportation. August 23, 2011. Retrieved May 14, 2012.
  9. ^ a b Vizza, Chris Morisse (September 13, 2013). "U.S. 231 Bypass Open: 'Wow. We Really Did It'". Journal & Courier. Retrieved January 22, 2014. (Subscription required (help)).
  10. ^ Vizza, Chris Morisse (September 12, 2013). "U.S. 52 Route Moves to Teal Road". Journal & Courier. Retrieved January 22, 2014. (Subscription required (help)).
  11. ^ "Few Changes Made in the 1939 Indiana Highway Map". The Rushville Republican. March 13, 1939. p. 4. Retrieved June 8, 2016 – via Newspapers.com. open access publication – free to read
  12. ^ a b "Seven Changes in Route Numbers on Indiana Highways". The Rushville Republican. February 18, 1935. pp. 1, 6. Retrieved June 8, 2016 – via Newspapers.com. open access publication – free to read
  13. ^ Main Market Highways (Map) (1917 ed.). Cartography by ISHC. Indiana State Highway Commission. 1917. Retrieved May 15, 2012.
  14. ^ Indiana Transportation Map of 1918 (Map) (1918 ed.). Cartography by ISHC. Indiana State Highway Commission. 1918. |access-date= requires |url= (help)
  15. ^ Indiana Transportation Map of 1926 (Map) (1926 ed.). Cartography by INDOT. Indiana State Highway Commission. 1926. |access-date= requires |url= (help)
  16. ^ State Highway System of Indiana (PDF) (Map) (1927 ed.). Cartography by ISHC. Indiana State Highway Commission. 1927. Retrieved May 15, 2012.
  17. ^ Indiana Transportation Map of 1933 (Map) (1933 ed.). Cartography by ISHC. Indiana State Highway Commission. 1933. |access-date= requires |url= (help)
  18. ^ Indiana Transportation Map of 1934 (Map) (1934 ed.). Cartography by ISHC. Indiana State Highway Commission. 1934. |access-date= requires |url= (help)
  19. ^ Indiana Transportation Map of 1938 (Map) (1938 ed.). Cartography by ISHC. Indiana State Highway Commission. 1938. |access-date= requires |url= (help)
  20. ^ Indiana Transportation Map of 1939 (Map) (1939 ed.). Cartography by ISHC. Indiana State Highway Commission. 1939. |access-date= requires |url= (help)
  21. ^ Indiana Transportation Map of 1951 (Map) (1951 ed.). Cartography by ISHC. Indiana State Highway Commission. 1951. |access-date= requires |url= (help)
  22. ^ Indiana Transportation Map of 1952 (Map) (1952 ed.). Cartography by ISHC. Indiana State Highway Commission. 1952. |access-date= requires |url= (help)
  23. ^ Indiana Transportation Map of 2011 (Map) (2011 ed.). Cartography by INDOT. Indiana State Department of Transportation. 2011. |access-date= requires |url= (help)
  24. ^ http://www.jasperindiana.gov/egov/documents/1374853344_0575.pdf

External links

Route map:

KML is from Wikidata

U.S. Route 231
Previous state:
Indiana Next state:
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