About the Project
On September 6, 2007 the State of Indiana announced an agreement in principle for the City of Carmel to assume ownership of Keystone Avenue (State Road 431) from 96th Street to U.S. 31.  The relinquishment of the street came as the result of nearly ten years of discussions between the state and the city. 

The city's construction plan calls for lowering Keystone Avenue at major intersections and building elevated roundabouts (separation of grade.)  When completed, Keystone Avenue will be free flowing without any signals within the city.  Drivers on east-west cross-streets, such as 116th Street, will use the roundabouts instead of having to stop for signals. 

The design will improve the safety of the road and will provide a more pedestrian friendly and efficient transportation network.