Superior Construction Begins Two INDOT Small Structure Replacement Projects in Indiana

MONTGOMERY AND PUTNAM, Ind. (October 3, 2026)  — Superior Construction has begun work on two small structure replacement projects for the Indiana Department of Transportation’s Crawfordsville District, addressing aging pipe infrastructure across Montgomery and Putnam counties.

In Montgomery County, Superior is replacing two deteriorating metal pipe culverts with a 48-foot precast concrete box culvert at SR 32 near McFarland Ditch. The existing pipes had rusted and degraded over time, and a recent flood event accelerated the need for replacement. The larger box culvert is designed to increase water capacity and reduce upstream flooding in the surrounding rural area. Superior crews are self-performing all excavation, embankment and box culvert installation during a 60-day road closure. The work requires precise sequencing and the flexibility to adjust quickly as weather conditions change. 

“There’s always a point where you have to be flexible. If we see rain in the forecast, we have to get ahead of it,” said Project Manager Chad Conwell. “We know how to shift the work around to protect what we’ve already put in the ground.”

In Putnam County, Superior is replacing seven corrugated metal pipe crossings beneath a three-mile stretch of US 231, a primary corridor connecting Greencastle to Interstate 70. The deteriorating pipes are being replaced with reinforced concrete pipe built to resist corrosion and serve the corridor for decades to come. Because US 231 serves homes, businesses and a nearby hospital, Superior developed a construction approach focused on minimizing disruption. Much of the work is being completed under flagging operations to reduce lane closures. The team coordinated directly with 18 homeowners and two businesses before construction began to help maintain access throughout the project. 

“For the people who live and work along this corridor, the impact is personal. It’s their commute, their driveway, their access to a hospital,” said Project Manager Tawanda Charambira. “We talked with every homeowner before the project started in order to help them maintain access.”

Together, the projects reflect Superior’s continued partnership with INDOT to replace aging infrastructure while minimizing impacts on the communities these roadways serve. Both projects are being delivered by Superior’s Mid-south Heavy Civil business unit, led by Division Manager Tim Koster.