$39.9 million roundabout project set to begin at 146th Street, Hazel Dell Road

NOBLESVILLE, Ind. (WISH) — Hamilton County commissioners on Monday hired a Carmel-based company to build a new roundabout at Hazel Dell Parkway beneath 146th Street on the border of Carmel and Noblesville.

The county hired Gradex for $39.9 million to lead the project, which will start this fall and continue through 2029. The Indianapolis Metropolitan Planning Organization granted $8.7 million for the project.

Much like the recently finished roundabout at Allisonville Road below 146th Street on the Fishers-Noblesville border, the Hazel Dell Road project will be designed to make the busy 146th Street corridor safer and keep traffic moving, officials said. The intersection is known for a high crash rate.

“The Allisonville Road interchange gives people a good idea of what we’re working toward at Hazel Dell,” said Hamilton County Highway Director Brad Davis in a news release issued Monday. “These are major projects, but they allow us to address congestion in a way that will serve this corridor for decades.”

The $44 million project at Allisonville Road and 146th Street was described Monday as one of the largest infrastructure investments in the county government’s history. About $9.5 million of that total came from federal funds, with the remainder from local government sources.

In April, the county announced that the Indianapolis Metropolitan Planning Organization awarded $6 million to begin plans for a similar roundabout interchange at 146th Street and Gray Road at the Carmel-Noblesville-Westfield border. That construction could begin in 2029.

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