Stellantis EV infrastructure wins engineering competition

Written on 04/05/2025
Patrick Munsey


Clark Dietz, Inc., of Indianapolis, Ind., has earned a National Recognition Award for exemplary engineering achievement. They will be recognized at the American Council of Engineering Companies’ (ACEC) 58th annual Engineering Excellence Awards (EEA) for designing stormwater and roadway improvements to support construction of the $6.3-billion Stellantis Electric Vehicle (EV) Battery Plant in Kokomo, Ind.

Spanning 1.5 miles of roadway, nearly 12,000 feet of storm sewer, and multiple regional detention basins, the $24-million infrastructure improvement project provides the essential foundation for Kokomo’s transformation into a leader in electric vehicle production. Clark Dietz utilized advanced hydraulic modeling tools and high-resolution LiDAR data to develop sustainable stormwater management solutions that mitigate flood risks, improve water quality, and enhance public safety.

The innovative design included daylighting more than 2,000 feet of piped channels, transforming them into naturalized waterways that filter pollutants, reduce flooding, and create ecological habitats. This approach demonstrates environmental stewardship and delivers significant benefits to the community, such as green spaces for recreation and education.

Clark Dietz provides multi-disciplinary engineering services from offices across the upper Midwest.



The project is eligible for additional honors as part of 194 entries this year representing engineering excellence from throughout the nation and the world. Judging for the awards program took place in February and was conducted by a national 32-member panel of built environment leaders, along with experts from government, the media, and academia. Award criteria focused on uniqueness, technical innovation, social and economic value, and generating excitement for the engineering profession.

Recognition of all award winners—including 16 Honor Awards, eight Grand Awards, and the prestigious “Grand Conceptor Award” for the year’s most outstanding overall engineering achievement—will take place at the EEA Gala, to be held at the Grand Hyatt, Washington, D.C., on Tuesday, May 20, 2025.