I-90 Northwest Tollway Master Plan, Cook County, Illinois

Location: Cook County, IL

Summary: Cardno ENTRIX staff was the lead Wetland Scientist for the ecological science services portion of the Phase I Transportation Engineering Design of the Project Master Plan for the proposed rehabilitation and add-lane project on the I-90 Northwest Tollway between Mile Post (MP) 10.6 (IL 53) and MP 18.0 (Higgins Road) in Cook County, Illinois. Services provided include a field assessment of the environmental concerns, including wetlands, natural areas, riparian environments, floodplains, threatened and endangered species habitats, and their associated buffer areas. Services involved best management practice analysis for water quality, erosion control, and sediment control to satisfy the environmental regulatory components of the project. Services also included a complete regulatory review to identify appropriate agencies and permit submittals related to environmental services within the project corridor.