Environmental Stewardship

The Eastern Corridor region contains a rich mix of man-made and natural resources. Variable topography, high quality streams, floodplain and groundwater resources, and developed communities all contribute to the aesthetic and environmentally important context of this part of the Cincinnati metropolitan area.

Sensitive resources that require special consideration during project development include:

  • The Little Miami River and other surface streams
  • Wetlands
  • Floodplains
  • Aquifers
  • Plant and wildlife resources
  • Threatened and endangered species habitat
  • Cultural historic and archaeological resources
  • Air quality
  • Noise

Important community and environmental resources identified during the Tier 1 study are listed below (click each to see associated graphics). Some of these resources have experienced change since this initial work was completed and information is being updated and evaluated as part of the current Tier 2 work.

Drainage Areas
FEMA Floodplains
Parks and Greenspace
National Register of Historic Places
Archaeology Sensitivity
Potential Hazardous Materials Concerns


Consistent with commitments made in the Tier 1 EIS, the Eastern Corridor Program is moving forward with developing a comprehensive, coordinated “green infrastructure” preservation, restoration and enhancement program that focuses on sensitive features, needs and opportunities.

A green infrastructure framework for the Eastern Corridor, initially focused on the Little Miami River valley, was developed and presented in the Green Infrastructure Master Plan. Through local landowner and stakeholder input, this planning effort identified community and resource priorities as well as mitigation and preservation opportunities in the area (mitigation opportunities are steps that can be taken to lessen negative impacts).

The Green Infrastructure Master Plan will continue to be developed during Tier 2 to help refine alternatives for the Eastern Corridor and develop detailed mitigation plans.

Green Infrastructure Master Plan in the Eastern Corridor Transportation Investment Area