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INDOT, with active support and financial partnership from the city of Fishers and Hamilton County, will construct a new interchange at 106th Street where it crosses over I-69, north of Indianapolis.
Fishers and Hamilton County will collectively contribute up to $12 million toward construction of a two-lane, oval-shaped roundabout on 106th Street over I-69 and ramps to and from both directions of the interstate. The existing 106th Street bridge over I-69 will be replaced with two separate two-lane bridges that will each carry one direction of traffic. The bridge carrying westbound traffic on the north side of 106th Street is designed to accommodate pedestrians. The project limits will extend between Crosspoint Boulevard and USA Parkway.
Walsh Construction was awarded a $21.7 million contract to build the new interchange. Construction will begin in April 2016. The existing 106th Street bridge will be removed as part of the project, which will require closing the 106th Street overpass on Monday, April 11. Traffic will be detoured south to 96th Street via Allisonville and Lantern Roads during construction.
The purpose and need of the project is to increase safety and mobility along the congested I-69 corridor in Fishers:
More than half of the crashes (58 percent) that occurred in the 96th Street and 116th Street interchange areas during 2010-12 were rear-end crashes. The next highest crash type was side-swipe crashes (17 percent). The high frequency of rear-end crashes along I-69 is likely due to high traffic volumes and congestion, with vehicles forced to make sudden stops. Side-swipe crashes are typically caused by improper lane changes that typically occur when vehicles are entering or exiting the interstate.
More than 75 percent of all crashes took place during dry, daylight conditions. Peak travel times are during the day, and high traffic volumes were likely the primary cause. More than 80 percent of rear-end crashes occurred during dry, daylight conditions, which shows congestion was likely to blame for the majority of these crashes.
Direct access at I-69 and 106th Street is needed to support the existing traffic volumes and the anticipated future growth of this section of Hamilton County. Motorists currently use the interchanges at 96th and 116th streets, which experience high congestion and are not easily expanded. Further expansion is cost prohibitive due to right-of-way impacts in these commercially developed areas.
Fishers has seen tremendous growth over the previous three decades and is currently the 8th most populated community in Indiana. U.S. Census data reports that Fishers had an approximate population of 2,000 in 1980, 7,200 in 1990, and 77,000 in 2010. Growth has been both residential and commercial in nature. The area near the proposed 106th Street interchange is currently experiencing development activity that is expected to create additional traffic.
For information about nearby roadway improvements and how the interchange fits in to Fisher's local transportation plan, go to the City of Fishers, 106th Street Interchange Project page.
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Greenfield District Customer Service
Indiana Department of Transportation
32 South Broadway
Greenfield, IN 46140