Indiana State Road 100

Infobox road
state=IN
type=IN
route=100
alternate_name=
maint=INDOT
length_mi=3
length_round=
length_ref= [http://illi-indi.com/EndsPage.php?id=1100&section=1 Indiana Highway Ends - SR 100] ]
established=
direction_a=South
starting_terminus=
junction=
direction_b=North
ending_terminus=
counties=Marion
cities=Indianapolis
previous_type=IN
previous_route=75
next_type=IN
next_route=101

State Road 100 in the U.S. state of Indiana no longer exists as a state highway (although it still is marked on some maps), the short final signed section on S. Shadeland Avenue having long ago been turned over to the City of Indianapolis. It was a vision to create a beltway around Indianapolis. It was deleted after having been truncated to a short route between US-40 & I-465 in the early 1990s. The highway began just south of U.S. Route 52 at I-465. It traveled northward as Shadeland Avenue. It turned west at Castleton, in northeastern Marion County, following 82nd Street. Between State Road 37A (Allisonville Rd) and the distinctive bridge over the West Fork of the White River just east of State Road 431 (Keystone Ave), it became 86th Street. It continued on west along 86th to the far-northwest side of Marion County, where its exact route west of U.S. 421 (Michigan Rd) is unclear. It may have once ended at the I-65/IN 334 intersection in Boone County.

The following places were along the highway's route:
* Indianapolis's Visteon plant
* Eastgate Mall
* Indianapolis's Western Electric plant (closed in 1986)
* Castleton Square Mall
* North Central High School (Washington Township Schools)

References