Indiana State Road 37

State Road 37 (SR 37) is a major route in the U.S. state of Indiana, running as a four-lane divided highway for 110 miles of its course.

State Road 37
SR 37 highlighted in red
Route information
Maintained by INDOT
Length	229.4 mi (369.2 km)
Existed	October 1, 1926[1]–present
Southern segment
Length	215 mi[2] (346 km)
South end	SR 66 in Tell City
Major junctions	I-64 in St. Croix I-69 in Bloomington I-69 in Indianapolis I-69 / I-74 / I-465 / US 36 / US 40 in Indianapolis I-69 in Indianapolis
North end	SR 9 in Marion
Northern segment
Length	14.4 mi[3] (23.2 km)
South end	I-469 / US 24 / US 30 in Fort Wayne
Major junctions	SR 101 in Springfield Township
North end	SR 2 in Scipio Township
Location
Counties	Perry, Crawford, Orange, Lawrence, Monroe, Morgan, Johnson, Marion, Hamilton, Madison, Grant, Allen
Highway system
Indiana Highways Interstate U.S. State Scenic ← US 36 → SR 38

At one time, the route ran from the southwest corner of the state to the northeast corner. In the pre-Interstate Highway era, Indiana 37 was the most direct route between Fort Wayne and Indianapolis. Interstate 69 has supplanted it as a through route, and State Road 37 now consists of two disconnected segments. The longer segment starts at Tell City on the Ohio River and ends in Marion in north central Indiana. The other segment in northeastern Indiana runs from Interstate 469 near Fort Wayne to the Ohio state line.

Route description

Southern segment

The southern section of Indiana SR 37 begins at a junction with SR 66 near the Ohio River in Tell City. Angling northeast, it enters the Hoosier National Forest then turns north until it meets Interstate 64 just north of State Road 62 at St. Croix. SR 37 now continues north beyond I-64, to eventually meet SR 64 near Eckerty. These two routes then run concurrently to the east for about 8 miles (13 km), where just north of English SR 37 departs to the north toward Paoli and SR 64 continues east toward Marengo. Just prior to reaching Paoli SR 37 leaves the National Forest. Once in town the route has a very brief (two block) concurrency with US 150 and SR 56 to loop around the town square before it leaves to the north, heading for Orleans and Mitchell.

Until reaching Mitchell, SR 37 is a two-lane rural route with relatively light traffic. However, from this point north to Indianapolis, the character of the road changes to become a major rural arterial route. At Mitchell the 4-lane divided highway begins with a short concurrency of SR 60 on SR 37 as both routes skirt the edge of town. From there, SR 37 continues north to US 50 on the outskirts of Bedford. US 50 and SR 37 then run concurrently, curving northeast to cross the East Fork of the White River before turning north to bypass the center of the city on its west side. After US 50 leaves to the east, SR 37 proceeds northward to Bloomington, where it now meets up with the new southern extension of Interstate 69 on that city's southwest side.

From that point in Bloomington heading north to Martinsville, SR 37 was converted from an expressway to a full freeway to allow for I-69 to run concurrently along its path and was completed October 31, 2018. Conversion of the stretch between Martinsville and a point just south of I-465 on the southwest side of Indianapolis is planned to follow, which will complete the southern extension of I-69 between Evansville and Indianapolis.

The present southern junction of SR 37 and I-465 is at the Harding Street interchange (exit 4 of the beltway). From there, the (unsigned) state road proceeds counterclockwise around the beltway to exit 37 (I-69/SR 37/Binford Boulevard) in the Castleton neighborhood of Indianapolis' northeast side. There it runs concurrent with the southern end of the original section of I-69 to the northeast for about 5 miles (8.0 km) to Fishers, before exiting to the north as a partially access-controlled divided highway.

Northeast of Noblesville, SR 37 reverts to a two-lane rural highway. Along the Hamilton—Madison County line it runs concurrent with SR 13 until those routes split just south of Elwood. From there, SR 37 angles north-northeast to reach the present northern terminus of the southern section at SR 9 just south of Marion.

Memorial Designation

The portion of SR 37 between Tell City and I-64 has been designated as the Frank O'Bannon Highway, to honor the late former governor.

Northern segment

The northern section of Indiana SR 37 begins at a junction with Interstate 469 on the northeast side of Fort Wayne. From there it runs northeast approximately 20 miles (32 km), passing through Harlan, to terminate at the Ohio state line near the Allen—DeKalb County line. The road continues on northeast in Ohio as State Route 2, to Hicksville, Ohio and beyond.

History

Southern section

SR 37 was once a section of the Dixie Highway from Indianapolis to Paoli.

In the 1950s, SR 37 ran north of Bloomington on the roads now called Cascades Drive and Old 37 to the northern end of Monroe County. South of Bloomington, SR 37 followed Walnut Street Pike, Fairfax Road, Valley Mission Road, Guthrie Road, and Kentucky Hollow Road (Old 37) to Oolitic. These were replaced in the late 1950s and early 1960s with the straighter sections called College Avenue and Walnut Street north of Bloomington and the sections called Walnut Street and Old 37 (Kentucky Hollow Road) south to Oolitic. As soon as the current 4-lane 37 was finished in 1976, a portion of Kentucky Hollow Road was abandoned north of Oolitic and a stone quarry that was alongside SR 37 for years consumed the road.[4][5]

SR 37 now turns to the east and is concurrent with SR 64 from Eckerty to English, where it exits the eastbound highway and rejoins the old route. The old, winding stretch of 37 from I-64 at Exit 86 north to English has been designated as SR 237. This change, which occurred between 2009 and 2014, also eliminated the SR 37 concurrency with I-64 between that route's exits 79 and 86.

Indianapolis

SR 37 originally ended at the junction of SR 35 (SR 135) and US 31 at Meridian and South Streets in downtown. The route that became SR 37 was originally numbered SR 13 in Marion and most of Hamilton Counties. SR 13 began at Meridian and Michigan Streets, then the junction of US 31, SR 13 and SR 367.[6]

SR 13 then followed Meridian St. (US 31) north to Fall Creek Parkway N. Drive, where it turned northeast. SR 13 then followed Fall Creek and Allisonville Road to Strawtown in Hamilton County, where what is now SR 37 was undesignated until 1940. In 1940, the portion from north of Strawtown to south of Elwood was made part of SR 13. From south of Elwood to Marion, the road that is now SR 37 was numbered SR 15.[7] By 1945, the entire route described above became a continuation of SR 37 from the south side of Indianapolis. SR 37 was designated along Michigan St. (westbound) and Vermont St. (eastbound) from Meridian St to West Street (at the time US 36, SR 29 and SR 67). SR 37 then turned south on West Street, until it became Bluff Road, at which point it was already part of SR 37. (This also removed the Bluff Road section of SR 37 from the state road system, removing the connection with SR 135.)[8]

In 1953, the state rerouted SR 37 to multiplex with US 36/SR 67 along 38th Street starting at Fall Creek Parkway.[9] (This would be part of the route the road would follow until decommissioning in 1999 or 2000.) The three roads would be multiplexed from 38th and Fall Creek, to 38th and Northwestern Ave. (now Dr. MLK Jr. St.), then south along Northwestern Ave. and West St. until the above-mentioned location at Michigan and West Streets.

In 1957, construction was started on the Noblesville Bypass of SR 37. This bypass was designed to go to the east side of Noblesville, through Fishers, and along a newly constructed road in Marion County to connect to Fall Creek Parkway just north of the then route of SR 37 (Allisonville Road).[10] One of the "quirks" in the design of the new SR 37 was a five-point intersection with SR 100, at the corner of Shadeland Road (now Avenue) and 82nd Street. By 1958, SR 37's Noblesville bypass was completed to the JCT SR 100 from the north. SR 37 then was rerouted along 82nd St to Allisonville, where it turned south to connect to Fall Creek Parkway has it had for the previous 35 years.[11] By 1959, the new route was completed, with the Allisonville Road route renumbered SR 37A.[12]

In the early to mid-1960s, two changes were made to SR 37. One which would eventually become part of I-69: interchanges were built at SR 100 and 116th St., as well as a connection to the under construction I-465. The second was the construction of an exit ramp (now Exit 4) on I-465 for the eventual construction of a Bluff Road bypass through southern Marion and northern Johnson Counties.[13]

In 1967, there were two SR 37s on the south side of Indianapolis: one along Bluff Road, one along the Bluff Road bypass. The two did not directly connect to each other at all.[14] By 1969, SR 37 was multiplexed with US 31 (along Meridian, North, Pennsylvania/Delaware, Madison and East Streets) to I-465/I-74 at what is now Exit 2. The route then was multiplexed with I-465/I-74 between Exits 2 and 4. This made the Bluff Road route abandoned in its connections to the state road system, so it was decommissioned. Some unofficial maps list Bluff Road as SR 37A for some time after this, although the state of Indiana never recognized it as such.[15]

By 1972, I-69 was completed along the SR 37 corridor from I-465 to where it had ended to that point at the JCT SR 37 Noblesville bypass (now Exit 205).[16]

SR 37 stayed much the same until 1999 or 2000, when all state and US highway designations were completely removed from inside the I-465 loop. SR 37 was then officially rerouted along I-465 along the east and south sides of Indianapolis. The current exit for SR 37 from I-465 is Exit 37.

Northern section

In 1940, the section of SR 37 from its current northern junction with SR 13 to Marion (west of its current routing) was designated SR 15. Another section that was to become SR 37, from Fort Wayne northeast to the Ohio border, was already designated SR 14.[7]

By 1945, SR 37 had been routed along its current route from Rigdon to south of Marion to the junction of SR 9.[8] SR 37 was then multiplexed along SR 9 from that junction to Huntington, then with US 24 from Huntington to Fort Wayne. The state then moved SR 14 from what became SR 37 to what was SR 230.[6]

In Fort Wayne, the combined US 24/SR 37 followed Upper Huntington Road (now Jefferson Boulevard) until it met up with SR 14 at Illinois Road. Just beyond that junction, the three routes split into a one way pair, with Jefferson Boulevard and Maumee Avenue handling eastbound traffic and Washington Boulevard used for westbound travel. East of downtown, SR 37 departed the pairing with US 24/SR 14, turning north onto Anthony Boulevard to cross the Maumee River. Roughly 1.5 miles (2.4 km) later, the route turned northeast onto Crescent Avenue, which becomes Stellhorn Road at Hobson Road/St. Joe Road as it curves to run due east. Finally, SR 37 turned (later curved) onto Maysville Road, angling northeast again and then passing the point where an interchange would eventually be built with the I-469 beltway (where the north segment of this state road now begins).

By 1980, the official multiplex along SR 9 and US 24 was decommissioned[17] (although there is a reference to SR 37 being multiplexed along I-69 around the west side of Fort Wayne in 1980, that reference was gone by 1982).[18] This created the northern section of SR 37, with its origin point located at Crescent Avenue and Coliseum Boulevard (then US 30, now SR 930) in Fort Wayne. When I-469 was later completed, the mileage between Coliseum Boulevard and I-469 was decommissioned and returned to local control.

Future

Construction for the I-69 Corridor Project on SR 37 in Monroe County (2017).

SR 37 between Bloomington and Indianapolis is slated to become part of the southern extension of Interstate 69. While this stretch is already a 4-lane partially access-controlled expressway, its present configuration still falls well short of Interstate freeway standards in that it contains numerous at-grade intersections, including 19 with traffic signals. The section between the recently built I-69 interchange north of Victor Pike in Bloomington to the curve south of Epler Avenue in Indianapolis will be upgraded to have full access control, and from that point a brief new terrain connection will be built due north to a new system interchange at I-465/I-74.[19] The segment between Bloomington and Martinsville was completed on October 31, 2018 and the section between Martinsville in Indianapolis is scheduled to be completed in 2024. Once construction is complete, SR 37 will be decommissioned between Bloomington and Fishers as it overlaps with I-69.

Beginning January 2, 2021, a portion of SR 37 was closed in Martinsville to allow for quicker construction of I-69 in the area.[20]

Major intersections

County	Location	mi[21]	km	Exit	Destinations	Notes
Perry	Tell City	0.00	0.00		SR 66 west – Evansville	Southern terminus of SR 37; southern end of SR 66 concurrency
					SR 66 east – Tell City	Northern end of SR 66 concurrency
	Troy Township				SR 237 south – Cannelton	northern terminus of the southern section of SR 237
	Anderson Township				SR 145 north – St. Meinrad	Southern terminus of SR 145
	Union Township				SR 70 east – Derby	Western terminus of SR 70
	St. Croix				SR 62 – Evansville, New Albany
					I-64 – St. Louis, Louisville
Crawford	Eckerty				SR 64 west – Huntingburg	Western end of SR 64 concurrency
	English				SR 64 east / SR 237 south – Sulphur, Georgetown	Eastern end of SR 64 concurrency; northern terminus of SR 237
Orange	Paoli				US 150 west / SR 56 west – Loogootee, Jasper	Western end of US 150 and SR 56 concurrency
					US 150 east / SR 56 east – New Albany, Salem	Eastern end of US 150 and SR 56 concurrency
	Orleans				SR 337 south	Northern terminus of SR 337
Lawrence	Mitchell				SR 60 east – Salem	Southern end of SR 60 concurrency
					SR 60 west – Georgia	Northern end of SR 60 concurrency
	Marion Township				US 50 west – Shoals, Washington, Vincennes	Southern end of US 50 concurrency
	Bedford				US 50 east / SR 450 to SR 158 – Bedford, Seymour	Northern end of US 50 concurrency
					SR 58 east – Columbus	Southern end of SR 58 concurrency
	Oolitic				SR 54 west / SR 58 west – Avoca	Eastern terminus of SR 54; northern end of SR 58 concurrency
Monroe	Bloomington			114	I-69 south – Evansville	Southern end of I-69 concurrency; exit 114.
				115	Fullerton Pike
				116	Tapp Road
				117	SR 45 south / Bloomfield Road/2nd Street	Southern end of SR 45 concurrency
				118	SR 48 west / 3rd Street	Eastern terminus of middle segment SR 48
				120	SR 45 north / SR 46 – Elletsville, Spencer, Bloomington	Northern end of SR 45 concurrency; exits signed 120A (east) and 120B (west)
				123	College Avenue/Walnut Street	Southbound exit, northbound entrance from Walnut Street
	Washington Township			125	Sample Road
Morgan	Washington Township			134	Liberty Church Road
	Martinsville				I-69 south	Northern end of I-69
					SR 39 to SR 67 north	Southern terminus of SR 39 (Interchange)
					SR 252 east – Morgantown	Western terminus of SR 252
					SR 44 east – Franklin	Western terminus of SR 44
Johnson	Waverly	135.21	217.60		SR 144 west – Mooresville	Eastern terminus of SR 144
Marion	Indianapolis	145.10	233.52	4	I-74 west / I-465 west / US 36 west / US 40 west / SR 67 south	Western end of I-74/I-465/US 36/US 40/SR 67 concurrency.
				2	US 31 south – Greenwood	southern end of US 31 concurrency
				54	I-65 – Indianapolis, Gary, Louisville
				49	I-74 east / US 421 south – Cincinnati	Eastern end of I-74 concurrency; southern end of US 421 concurrency
				47	US 52 east – Cincinnati	Southern end of US 52 concurrency
				46	US 40 east – Dayton	Eastern end of US 40 concurrency
				44	I-70 – Indianapolis, St. Louis, Dayton, Columbus
	Lawrence			42	US 36 east / SR 67 north – Pendleton	Eastern end of US 36/SR 67 concurrency
	Indianapolis	165.69	266.65	37 200	I-69 / I-465 west / US 31 north / US 52 west / US 421 north	Eastern end of I-465 concurrency; northern end of US 52/US 421 concurrency; southern terminus of I-69 concurrency
Hamilton	Fishers	170.86	274.97	205	I-69 north – Fort Wayne	Northern end of I-69 concurrency
	Noblesville	175.04	281.70		SR 32 / SR 38 – Noblesville, Anderson, Pendleton
Madison	Jackson Township	186.76	300.56		SR 13 south – Lapel	Southern end of SR 13 concurrency
	Elwood	193.04	310.67		SR 13 north – Elwood	Northern end of SR 13 concurrency
		195.73	315.00		SR 28 – Tipton, Elwood, Albany
Grant	Hackleman	207.23	333.50		SR 26 – Lafayette, Hartford City, Portland
	Marion	211.77	340.81		US 35 / SR 22 – Kokomo, Gas City
		214.23	344.77		SR 9 – Marion, Anderson	Northern terminus of the southern section of SR 37
Gap in route
Allen	Fort Wayne	214.23	344.77		I-469 / US 24 / US 30 / Maysville Road – Fort Wayne, New Haven	I-469 exit 25; southern terminus of SR 37's northern part.
	Springfield Township	230.16	370.41		SR 101 – Woodburn, Butler
	Scipio Township	234.37	377.18		SR 2 east – Hicksville, Bryan, Toledo	Ohio state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

Related route

State Road 37A
Location	Indianapolis to Noblesville
Length	18.88 mi[22] (30.38 km)
Existed	1959–c. 1970s

State Road 37A (SR 37A) ran from Indianapolis to Noblesville from 1959 until the 1970s. Beginning sometime between 1957 and 1959, the designation SR 37A was first used for the old routing of SR 37 between Indianapolis and Noblesville.[23][24] The southern end of the road was moved to SR 100 in late 1963 or early 1964.[25][26] In late 1964 or early 1965 the route was shortened at the north end, with the new end being at an intersection with SR 32 and SR 38.[26][27] In late 1969 or early 1970 the designation of SR 37A in Hamilton County was removed.[28][29] The state highway commission removed the last segment of SR 37A in Marion County in ether late 1972 or early 1973.[30][31]

SR 37A (Allisonville Road) began at its southern terminus with its parent route, SR 37 (now Binford Boulevard), near the Indiana State Fairgrounds. The route traveled northeast crossing 52nd and 56th streets, Kessler Boulevard East Drive, and 62nd, 65th, 71st, 75th, and 79th streets, before it reached an intersection with East 82nd Street near Castleton Square Mall. The route then interchanged with Interstate 465 (I-465 Exit 35), followed by intersections with 86th, 91st, and 96th streets, then crossed into Hamilton County and the town of Fishers.

In Fishers, the route intersected East 106th Street near Indianapolis Metropolitan Airport. The route intersected 116th, 126th, and 131st streets, then passed by Conner Prairie Interactive History Park. The route then crossed 141st and 146th streets, entering the city of Noblesville. Just south of downtown Noblesville, Allisonville Road turned north and becomes South 10th Street. In downtown, the route reached an intersection with SR 32/SR 38 (Conner Street). North of downtown, the route once again turned northeast and became Allisonville Road. The route then intersected East 191st Street. After East 191st Street, the route turned east and crossed Cumberland Road. After Cumberland Road, the route turned southeast and reached its northern terminus at its parent route, SR 37 (Strawtown Pike) on the far north side of Noblesville.

County	Location	mi[32]	km	Destinations	Notes
Marion	Indianapolis	0.0	0.0	SR 37 / Binford Boulevard	Southern terminus of SR 37A (1959–1963)
	Castleton	5.3	8.5	SR 100 / 82nd Street	Southern terminus of SR 37A (1963–1972)
		5.6	9.0	I-465	Beltway around Indianapolis
Hamilton	Delaware–Noblesville township line	12.7	20.4	SR 234 west / 146th Street	Eastern terminus of SR 234
	Noblesville	15.2	24.5	SR 238 east / Greenfield Avenue	Western terminus of SR 238
		15.9	25.6	SR 32 / SR 38 (Conner Street)	Northern terminus of SR 37A (1964–1972)
	Noblesville Township	18.9	30.4	SR 37 (Strawtown Pike)	Northern terminus of SR 37A (1959–1964)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

• Moon, Roger (November 21, 2007). "New highway marks milestone for association". Times-Mail. Bedford, IN.

1. "Road Numbers to Be Changed". The Hancock-Democrat. The Indianapolis News. September 30, 1926. Retrieved June 9, 2016 – via Newspapers.com.
2. Google (August 12, 2009). "Length of Indiana Route 37: Southern Segment" (Map). Google Maps. Google. Retrieved August 12, 2009.
3. Google (August 12, 2009). "Length of Indiana Route 37: Northern Segment" (Map). Google Maps. Google. Retrieved August 12, 2009.
4. Monroe County, Indiana (1964) [1954]. Map of Bloomington and Monroe County (Map). Monroe County, IN: Monroe County.
5. Rand McNally (1963). Rand McNally 1964 Road Atlas (Map). Chicago IL: Rand McNally. p. 37.
6. Indiana State Highway Commission (1939). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
7. Indiana State Highway Commission (1940). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
8. Indiana State Highway Commission (1945). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
9. Indiana State Highway Commission (1953). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
10. Indiana State Highway Commission (1957). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
11. Indiana State Highway Commission (1958). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
12. Indiana State Highway Commission (1959). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
13. Indiana State Highway Commission (1965). Official Indiana Highway Map (Map) (1965–66 ed.). Indianapolis: Indiana State Highway Commission.
14. Indiana State Highway Commission (1966). Official Indiana Highway Map (Map) (1966–67 ed.). Indianapolis: Indiana State Highway Commission.
15. Indiana State Highway Commission (1969). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
16. Indiana State Highway Commission (1972). Official Indiana Highway Map (Map) (1972–73 ed.). Indianapolis: Indiana State Highway Commission.
17. Indiana State Highway Commission (1980). Official Indiana Highway Map (Map). Indianapolis: Indiana State Highway Commission.
18. Indiana State Highway Commission (1982). Official Indiana Highway Map (Map) (1982–83 ed.). Indianapolis: Indiana State Highway Commission.
19. Indiana Department of Transportation. "I-69 Evansville to Indianapolis Preferred Route". Indiana Department of Transportation. Archived from the original on May 23, 2006.
20. Doerflein, Leeann (January 1, 2021). "SR 37 Closes Through Martinsville to Make Way for I-69". Daily Journal. Franklin, Indiana. Retrieved January 4, 2021.
21. Indiana Department of Transportation. "INDOT Roadway Referencing System" (PDF). Indiana Department of Transportation. Archived from the original (PDF) on June 15, 2011. Retrieved April 18, 2011.
22. AOL (September 18, 2015). "Length of Indiana Route 37A" (Map). Mapquest. AOL. Retrieved September 18, 2015.
23. Indiana State Highway Department (1957). State Highway System of Indiana (Map). Indiana State Highway Department. OCLC 78547924. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
24. Indiana State Highway Department (1959). State Highway System of Indiana (Map). 1:680,000. Indiana State Highway Department. § G7–H7. OCLC 64590481. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
25. Indiana State Highway Commission (1963). Indiana State Highway System (Map) (1963–1964 ed.). 1:633,600. Indiana State Highway Commission. § G7–H7. OCLC 883418455. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
26. Indiana State Highway Commission (1964). Indiana State Highway System (Map). 1:640,000. Indiana State Highway Commission. § G7–H7. OCLC 65195866. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
27. Indiana State Highway Commission (1965). Indiana State Highway System (Map) (1965–1966 ed.). 1:630,980. Indiana State Highway Commission. § G7–H7. OCLC 53370381. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
28. Indiana State Highway Commission (1969). Indiana State Highway System (Map). 1:631,000. Indiana State Highway Commission. § G7–H7. OCLC 314731307. Retrieved August 27, 2016 – via Indiana State Library and Historical Bureau.
29. Indiana State Highway Commission (1970). Indiana State Highway System (Map) (1970–1971 ed.). 1:640,000. Indiana State Highway Commission. § G7–H7. OCLC 65221477.
30. Indiana State Highway Commission (1972). Indiana State Highway System (Map) (1972–1973 ed.). 1:640,000. Indiana State Highway Commission. § H7. OCLC 65333830.
31. Indiana State Highway Commission (1973). Indiana State Highway System (Map) (1973–1974 ed.). 1:633,900. Indiana State Highway Commission. § H7. OCLC 501330315, 65333444.
32. Google (August 25, 2016). "Route of Former SR 37A" (Map). Google Maps. Google. Retrieved August 25, 2016.

External links

• Indiana Highway Ends - State Road 37