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State Road 37 Improvement Project – Now Open
Drivers can expect periodic lane restrictions as the contractor completes final punchlist items and restorations operations. Proceed through the area with caution.
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Frequently Asked Questions
This project was identified by the City of Fishers, Hamilton County Highway Department, City of Noblesville, and INDOT to alleviate challenges such as traffic congestion, to improve connectivity in our community, and to proactively address future growth and additional traffic.
A 2010 SR 37 Mobility Study (PDF) also concluded that most of the intersections are currently operating at an unacceptable level of service.
The infrastructure project includes the intersections of SR 37 and 126th, 131st, 135th, 141st and 146th Streets. Also view other concerned areas on the SR 37 Mobility Study.
The improvement project will convert each cross street from a signalized intersection to a roundabout interchange with an on/off exit system. Much like the improvements made to Keystone Parkway in the City of Carmel, the SR 37 project will be a separated grade project to allow for free-flowing thru traffic on SR 37 and increased traffic flow for the cross streets. An Intersection Rendering is available and additional information will be made available for each rehabilitated intersection.
The 2010 SR 37 Mobility Study (PDF) evaluated the merits of a grade separation at the existing intersections and concluded that replacing traffic signals with interchanges would significantly improve safety and mobility through the corridor without the need for additional travel lanes.
Once the SR 37 project is complete, there will no longer be signalized intersections on the corridor. Traffic is expected to flow more fluidly from north of 146th Street to I-69. In addition, the elimination of traffic signals on SR 37 is expected to ease traffic congestion along the northbound I-69 and SR 37 exit (Exit 205) during P.M. peak hours. After improvements are made, all intersections will operate at the highest level of service (A) through 2036. In addition, the study found increased safety due to the reduction of stop-and-go congestion. This means that your commute time will decrease and motorist safety will increase.
Once the SR 37 project is complete, there will no longer be signalized intersections on the corridor. Traffic is expected to flow more fluidly from north of 146th Street to I-69. In addition, the elimination of traffic signals on SR 37 is expected to ease traffic congestion along the northbound I-69 and SR 37 exit (Exit 205) during P.M. peak hours. After improvements are made, all intersections will operate at the highest level of service (A) through 2036. In addition, the study found increased safety due to the reduction of stop-and-go congestion. This means that your commute time will decrease and motorist safety will increase.
The 2010 SR 37 Mobility Study conducted an intersection capacity analysis based on 2010 traffic counts and 2036 projected traffic counts.
The SR 37 project will create separated grade intersections which means the cross streets (126th, 131st, 135th, 141st, and 146th Streets) will no longer intersect SR 37 but instead will “go over” the road in a teardrop roundabout alignment. With the removal of the traffic signals, traffic will move more fluidly through the intersections and significantly decrease wait times for motorists traveling east/west. In addition, the roundabout intersections will increase pedestrian connectivity with east/west sidewalks that flow with traffic rather than crossing it. Crosswalks will also be installed.
The SR 37 improvement project will cost an estimated $124 million to complete. The State of Indiana’s Department of Transportation (INDOT) will cover the bulk of the costs at $100 million, and the City of Fishers and Hamilton County will each contribute $12 million.
There are no anticipated tax increases to fund this project.
While all agencies will be involved in the development of the project, the City of Fishers is responsible for the design, construction and maintenance of traffic and all communication regarding traffic and lane closures. During construction and seven years after completion, SR 37 will be maintained by the City of Fishers. After seven years, the road will be returned to the State of Indiana and maintained by the State of Indiana’s Department of Transportation (INDOT).
The final design of the project will be determined over the next two to three years as environmental and design studies are completed with opportunity for public input. Once design is complete, the construction period is expected to last approximately three years. Visit the Project Overview page for additional details.
While there will be lane restrictions and periodic lane closures, the road will not be closed for any length of time during construction. The City of Fishers will diligently communicate with the public, businesses, and news media to help disseminate updates throughout the duration of the project to reduce impact as much as possible. Follow Drive Fishers on X for updates.
Because of traffic congestion, more and more residents are already seeking alternate routes—avoiding SR 37 and overloading secondary routes. By improving the corridor’s flow and mobility, potential customers are less likely to avoid the corridor which could lead to more business for the area establishments. In addition, by improving bicycle and pedestrian mobility and connecting the community, the SR 37 area businesses could attract additional customers. Historically, corridors that are friendly to alternative modes of transportation enjoy increased economic development opportunities. For more information about the impact of SR 37 improvements in your business, you may submit a Request an Information Meeting Form.
The impact of the planned separated-grade interchange improvements to SR 37 is minimal compared to large highway expansion projects that include adding additional travel lanes. While the detailed impacts will be identified in the Environmental Assessment to satisfy the National Environmental Policy Act (NEPA), it is anticipated that the project will have only minor impacts on social, environmental, economic, or ecological resources. There are no residences or businesses that are anticipated to be displaced because of the SR 37 improvements.
The SR 37 project will be constructed under traffic such that two northbound and two southbound traffic lanes will be open at all times. If detour routes are needed for the cross streets during construction, they will be identified during the detailed design phase to handle local traffic needing to access and cross SR 37. Visit the Project Updates page to learn more.
Residents, business owners and other stakeholders are encouraged to sign up for SR 37 Project Emails Alerts and check Project Updates regularly. Routine construction updates for the City of Fishers are available by subscribing to Drive Fishers Emails, by viewing Weekly Construction Updates or by following @DriveFishers on Twitter.
Contact Us
- Email Design Questions
- Email Marketing Program Questions
- Email Business Outreach
- Follow @DriveFishers on Twitter for current updates.
- Business owners, neighborhood associations and individuals can request an Informational Meeting to discuss the project with project officials.

