Indiana State Road 37
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State Road 37 (SR 37) in the U.S. State of Indiana at one time ran from the northeast of the state to the south end. In the pre-Interstate Highway era, Indiana 37 was the most direct route between Fort Wayne and Indianapolis, although Interstate 69 has supplanted it and some other highways as through routes. It remains as the principal link between Indianapolis and Bloomington.
While State Road 37 physically exists in two discontinuous segments, it is actually a continuous route in the state's route logs. The mileposts along the segment northeast start at 222 just northeast of the intersection with I-469. The mileage for the "decommissioned" segment follows State Road 9 to Huntington, then turns follows US-24 northeast to I-69 on the southwest side of Fort Wayne. It then follows I-69 south to I-469, then I-469 east then north to the interchange with the northern segment.
De-signing a state road where it is multiplexed with another state road, interstate or US highway is quite common in Indiana, since state law sets a maximum limit to the Indiana's state highway mileage. However, for continuity purposes, the entire route--signed and unsigned portions--are retained in the state's route logs.
The Indiana Department of Transportation has removed State Road 37 signs where it coincided with existing highways and inside the freeway loops surrounding Fort Wayne and Indianapolis. It now consists of two discontinuous segments:
- A northern section begins at the Ohio state line near Harlan, where it continues east as State Route 2. Indiana 37 runs southwest approximately 20 miles to end at a junction with Interstate 469 on the northwest side of Fort Wayne.
- A southern section has its northern terminus just south of Marion at a junction with State Road 9. It runs south and southwest, passing near Elwood and Noblesville. It merges with Interstate 69 near Fishers, joining Interstate 465 northeast of Indianapolis, running along the portion of I-465 multiplexed with US-31, US-36, US-40, US-52, US-421, and IN-67 (from exits 42 to 46) and departing Interstate 465 on the south side of Indianapolis at Exit 4. It runs south and southwest through Martinsville, Bloomington, Bedford, Mitchell and Paoli. It then continues south through the Hoosier National Forest and merges with Interstate 64 for about 7 miles west before continuing southwest to its southern terminus at the junction with State Road 66 on the Ohio River in Tell City.
SR 37 will be upgraded on the spot to become Interstate 69 from north of Victor Pike in Bloomington to the curve south of Epler Avenue in Indianapolis, where I-69 will run straight north to Interstate 465.[1]
