146th Street and Allisonville Road Construction Updates
This is your all-in-one guide for everything you need to know about the 146th Street and Allisonville Road construction in Fishers, Indiana.
This post is part of the Fishers Digest Construction Projects and Updates series.
What Do I Need To Know?
Latest Update: April 26, 2024
Fishers plans to start the construction at 141st/SR37 sometime this Summer. They are hoping to wait until the Allisonville portion of this massive project is finished before they start that. So traffic doesn’t get impossible to navigate.
Allisonville Road is still closed north and south of 146th Street. The contractor will implement a new traffic pattern for
eastbound and westbound 146th Street on March 21 (see map below). Please use extreme caution and follow the 35mph
posted speed limit.
The closure is part of a project to create a grade-separated interchange, aiming to reopen by June for Conner Prairie’s Symphony on the Prairie. Residents can access their homes but cannot cross 146th Street. Detours and speed limits will be posted for safety. The project is expected to finish in Summer 2025.
What Will 146th Street And Allisonville Road Look Like When It’s Finished?
Below is an image from the mock videos the Hamilton County Highway department created. The result shows a large roundabout with an overpass.
Why Are They Building A Roundabout?
This project is needed in order to reduce congestion at the existing intersection.
Project Scope
The existing intersection will be converted into a grade-separated interchange.
Construction Details
- Design Firm: United Consulting / Butler, Fairman & Seufert
- Inspection Firm: United Consulting / Lochmueller Group
- Contractor: Superior Construction
- Construction Start Date: Spring 2023
- Construction Completion: Summer 2025
- Construction Cost: $44 Million est.
Who Is Funding The Project?
A combination of federal funds and Hamilton County funds are being used for the interchange.
