This project started with a planning effort and conceptual design of a 4-lane expressway, including grade-separated, full-access, roundabout interchanges at six existing intersections along one of the most heavily traveled roadways in the city of Carmel. The planning portion of the project evaluated the feasibility of lowering portions of existing Keystone Avenue and determined the effects the project would have on adjacent properties. As a part of the planning portion of the project, American Structurepoint evaluated the use of modern roundabouts in various configurations for the interchanges in lieu of tight diamonds or single-point interchanges. American Structurepoint has completed the planning portion of the project and proceeded with an aggressive schedule for the final road and bridge design of all six interchanges. Two of the interchange designs have been completed and final design of the remaining four intersections are underway. Construction will begin in April 2008 and continue through fall of 2010. For more information regarding this project please visit www.carmellink.org

