State Roads 2, 23 and 331, at survey size

1926–PRESENT · THE STATE-ROAD FRAME

Three state numbers frame the city's exits, and each is one line of the older record: State Road 2 ends — or begins — at the St. Joseph Valley Parkway's west interchange, where US 20 and US 31 divide; westward it runs out Western Avenue on the very line the State Highway Commission chose in October 1924 when it moved State Road 25 onto Division Street extended, through New Carlisle's west edge and Rolling Prairie toward LaPorte, and its junction with US 20 west of the city in its present form dates to 1963. State Road 23 leaves the city at its northeast corner, from its junction with State Road 933 at the Notre Dame edge, and runs northeast through Granger to the Michigan state line — the county's commuter diagonal, a state road the whole way. State Road 331 is Capital Avenue, and it is Mishawaka's corridor, boundary-printed here as the Toll Road and parkway record requires: its Toll Road interchange, Exit 83, opened 17 November 1982, and the parkway's eastern extension reached it early — the Michigan Street to State Road 331 segment was the first of the parkway's eastern miles paved, by 1991. The rest of each road's course belongs to the county and the neighboring cities' builds; what is South Bend's is the junctions, and they are printed.

Sources:

1. Indiana Transportation History (2019) and the route record — State Road 2 on the 1924 Western Avenue line west of the city, and the 1963 US 20–State Road 2 junction.
2. The Indiana route record — State Road 23 from State Road 933 northeast through Granger to the Michigan line; State Road 331 (Capital Avenue) with its Toll Road Exit 83 opened 17 November 1982; the parkway's Michigan Street–State Road 331 segment paved first, by 1991.