Indiana State Road 1
|Maintained by INDOT|
|Length:||137.13 mi (220.69 km)|
|South end:||I-275 / US 50 near Lawrenceburg|
| I-74 in Saint Leon
US 52 in Brookville
US 40 in Cambridge City
I-70 near Cambridge
US 36 in Modoc
|North end:||I-469 / US 33 near Fort Wayne|
|Length:||62.56 mi (100.68 km)|
|South end:||I-69 in Fort Wayne|
|US 6 in Butler|
|North end:||US 20 near Angola|
|Counties:||Dearborn, Franklin, Wayne, Randolph, Jay, Wells, Allen, DeKalb, Steuben|
State Road 1 is a north–south state highway in the eastern portion of the U.S. state of Indiana. Its southern terminus is at U.S. Highway 50 in east-central Dearborn County, just east of Lawrenceburg. Its northern terminus is at U.S. Highway 20 in east-central Steuben County, approximately six miles east of Angola.
Indiana State Road 1 begins at an interchange of Interstate 275. Just after the interchange there is a stop light at U.S. Route 50 (US 50). SR 1 travels 14.53 miles (23.38 km) north-northwest until it reaches I-74; just beyond I-74 it crosses Indiana State Road 46 (SR 46). SR 1 continues north until it meets U.S. Route 52 (US 52) just west of Cedar Grove. Then US 52 and SR 1 continue north-northeast for 5.78 miles (9.30 km) until they reach Brookville; here, US 52 turns west on its way to Indianapolis, while SR 1 continues north-northwest for 16.81 miles (27.05 km) where it meets Indiana State Road 44 (SR 44). SR 1 and SR 44 travel together for 0.47 miles (0.76 km) where SR 1 turns north-northeast towards downtown Connersville. North of Connersville, SR 1 travels north-northwest until it reaches Cambridge City, where SR 1 crosses U.S. Route 40 (US 40). After the intersection at US 40, SR 1 heads north-northeast. After 2.90 miles (4.67 km) SR 1 has an interchange with Interstate 70 (I-70), then heads due north towards U.S. Route 36 (US 36). SR 1 turns east onto US 36 for 1.01 miles (1.63 km), then leaves US 36 and travels generally due north until it reaches Fort Wayne. Just south of Fort Wayne, SR 1 ends at an interchange with Interstate 469 (I-469).
On the north side of Fort Wayne at the Dupont Road exit on Interstate 69 (I-69), SR 1 begins and heads east. The road heads away from I–69, has a six-lane divided highway, passing through commercial properties. The highway narrows to a four-lane divided highway at Diebold Road and the road enters a commercial and residential properties. At Tonkel Road, SR 1 begins to curve northeast towards Leo and narrows to a two-lane highway. The route leaves Fort Wayne passing through rural farm land with houses. The road enters Leo and curves due north, onto Main Street passing through residential. North of downtown the highway curves northeast and passes through a mix of commercial and residential. As the road enters DeKalb County the road curves due north. The highway enters Spencerville passing through downtown. After Spencerville, the road curves northeast, before turning back north. The highway enters St. Joe and takes a sharp curve heading due east. The route crosses the CSX Railroad tracks and makes another sharp curve heading due north. The road heads due north, until it meets SR 8. The concurrency head east-southeast and after a 1.04 miles (1.67 km) concurrency, SR 1 leaves the concurrency heading due north. The road passing through rural farmland, with a few house, as a two-lane highway. The road enters Butler and crosses the Norfolk Southern Railroad tracks. The highway has a traffic light at US 6, in downtown Butler. The road leaves Butler heading due north, until DeKalb County Road 46, at which point the highway turns northwest. The route enter Hamilton and begins a concurrency with SR 427. The concurrency heads northeast, passing Hamilton Lake. After 0.84 miles (1.35 km), SR 1 leaves the concurrency heading due north. The highway continues to its northern terminus at US 20.
SR 1 began at US 50 and Main Street in Lawrenceburg and traveled north on Main Street until Main Street became Ridge Avenue. It then followed Ridge Avenue until it met the current SR 1.
Before I-469 was complete, SR 1 followed Bluffton Road heading north, then turned northeast on to Baer Field Thruway, later known as Airport Expressway. SR 1 followed Baer Field Thruway until the intersection of U.S. Route 27 (US 27). SR 1 followed US 27 until the interchange with I-69, where SR 1 then exited at Dupont Road.
||Greendale||0.00||0.00||US 50 / I-275 – Lawrenceburg, Cincinnati||Southern terminus of SR 1.|
|Saint Leon||14.53||23.38||I-74 – Indianapolis, Cincinnati|
|SR 46 – Batesville|
||Cedar Grove||20.64||33.22||US 52 east||Southern end of US 52 concurrency|
|Brookville||SR 252 east (E 4th Street)– Hamilton||Western terminus of SR 252|
|26.43||42.53||US 52 west / SR 101 north – Indianapolis||Northern end of US 52 concurrency; southern of SR 101 concurrency|
|SR 101 north||Northern end of SR 101 concurrency|
||Connersville||43.24||69.59||SR 44 east – Liberty||Eastern end of SR 44 concurrency|
|43.71||70.34||SR 44 west – Rushville||Western end of SR 44 concurrency|
||Cambridge City||56.67||91.20||US 40 – Indianapolis, Richmond|
|59.57||95.87||I-70 – Indianapolis, Richmond||Exit 137 on I-70|
|Hagerstown||63.47||102.15||SR 38 – New Castle, Richmond|
|Losantville||68.52||110.27||US 35 – Richmond, Muncie|
||Modoc||73.07||117.59||US 36 west – Indianapolis||Western end of US 36 concurrency|
|74.08||119.22||US 36 east – Greenville||Eastern end of US 36 concurrency|
|Farmland||82.93||133.46||SR 32 east – Winchester||Southern end of SR 32 concurrency|
|84.09||135.33||SR 32 west – Muncie||Northern end of SR 32 concurrency|
|Green Township||91.95||147.98||SR 28 – Albany, Union City|
||Redkey||96.15||154.74||SR 67 – Muncie, Albany, Portland|
|Knox Township||102.34||164.70||SR 26 east – Portland||Southern end of SR 26 concurrency|
|102.84||165.50||SR 26 west – Hartford City||Northern end of SR 26 concurrency|
|Penn Township||109.89||176.85||SR 18 – Montpelier, Bryant|
||Nottingham Township||116.95||188.21||SR 218 – Warren, Berne|
|Bluffton||SR 116 east – Geneva||Southern end of SR 116 concurrency|
|123.23||198.32||SR 124 east – Monroe||Southern end of SR 124 concurrency|
|124.25||199.96||SR 116 west / SR 124 west – Peru, Markle||Northern end of SR 116 and SR 124 concurrences|
|Jefferson Township||129.25||208.01||US 224 – Huntington, Markle, Decatur|
||Fort Wayne||137.13||220.69||I-469 / US 33 – New Haven, Decatur||Northern terminus of the southern section of SR 1|
|Gap in route|
||Fort Wayne||137.13||220.69||I-69 – Indianapolis, Fort Wayne, Lansing||Southern terminus of the northern section of SR 1|
||Concord Township||177.60||285.82||SR 8 west – Auburn||Western end of SR 8 concurrency|
|178.61||287.44||SR 8 east / SR 101 south – Woodburn, Hicksville||Northern terminus of SR 101; Eastern end of SR 8 concurrency|
|Butler||183.74||295.70||US 6 – Waterloo, Edgerton|
|Hamilton||192.20||309.32||SR 427 south – Waterloo||Southern end of SR 427 concurrnecy|
|193.04||310.67||SR 427 north – Edon||Northern end of SR 427 concurrency|
||Scott Township||199.69||321.37||US 20 – Angola, Toledo||Northern terminus of SR 1|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- "INDOT Roadway Referencing System" (PDF). staff.
- Google Inc. Google Maps – overview of the northern section of SR 1 (Map). Cartography by Google, Inc. https://maps.google.com/maps?saddr=E+Dupont+Rd&daddr=41.2282771,-85.0080441+to:US-20+E&hl=en&ll=41.388143,-84.876251&spn=0.605821,1.145325&sll=41.211399,-85.020275&sspn=0.037967,0.071583&geocode=FbhWdAIdCGrt-g%3BFfUXdQIdVOHu-impWoHmOwEWiDGpx1KQryxu4A%3BFZpCewIdUkrw-g&mra=dvme&mrsp=1&sz=14&via=1&t=h&z=10. Retrieved September 13, 2012.
- Indiana Department of Transportation (2012) (PDF). Indiana Transportation Map (Map). Cartography by INDOT (2011–2012 ed.). http://www.in.gov/indot/files/StateTransportationMap.pdf. Retrieved September 13, 2012.
- Indiana Department of Transportation (2011) (PDF). Indiana Railroad Map (Map). http://www.in.gov/indot/files/MAIN-RR-11_V1.pdf. Retrieved September 13, 2012.