The Illinois Tollway supports research programs at the Illinois Natural History Survey (Urban Biotic Assessment Program) and the Illinois State Geological Survey (Roadway Runoff Assessment Program).
Our scientists provide the Illinois Tollway with the ecological, geological, and hydrological expertise needed to effectively and efficiently comply with state and federal environmental regulations, while also preserving habitats and species native to the areas served by the Tollway system.
Read about PRI’s role in “Preventing Roadblocks.”