INDOT reports FY2026 interstate construction cost average of $46M per centerline mile, up from $8.4M in FY2015
The Indiana Capital Chronicle reported Oct. 2, 2026 that the Indiana Department of Transportation’s average cost to construct a centerline mile of interstate was $46 million in fiscal year 2026 (which ended in June), a rise from $8.4 million in FY2015, according to a late‑August State Budget Committee slide.
Indiana Capital Chronicle (Oct. 2, 2026) reported INDOT’s average cost to build a centerline mile of interstate was $46 million in fiscal 2026 (ended June), up from $8.4 million in FY2015. The article said a late‑August State Budget Committee slide showed the figure covers full reconstruction or added lanes and cites Revive I‑70 and Safer Drive 65.
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