List of former state highways in Indiana (400–999)
Wikimedia list article
This is a list of former state highways in Indiana with route numbers from 400 through 999. For a full list of former state highways in Indiana, see the List of former state highways in Indiana.
State Road 403
State Road 403 was a six-mile (10 km) northeast-to-southwest route that lies entirely within Clark County. It was decommissioned as a state highway and taken over by the county in 2012.
State Road 407
State Road 407 ran from State Road 7 to State Road 3. The route is now Jennings County Road 350 West and CR 500 North.
State Road 420
State Road 420 ran from the Illinois State Line to Gary. SR 420 was the original number of Tri-State Expressway; the name was later changed to Borman Expressway.
State Road 431
The former State Road 431, now simply Keystone Parkway, remains a busy route connecting U.S. Route 31 with Interstate 465 at Exit 33. It passes through the Indianapolis suburb of Carmel, allowing traffic on U.S. 31 north of Carmel a shorter route to I-465 and the east side of Indianapolis.
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