Great Miami Mitigation Bank - Site Design and Permitting Project

Mitigation Wetland Restoration

As part of its ongoing effort to provide conservation, educational, and outdoor recreational activities, Five Rivers MetroParks worked with Cardno to establish the Great Miami Mitigation Bank (GMMB), southwest Ohio’s first wetland mitigation bank and the first stream mitigation bank, and Ohio's first stream mitigation bank.

Cardno identified sites suitable for the 360-acre park with significant wetland and stream mitigation banking opportunities. Our staff created a county-wide geodatabase using a geographic information system to stratify and evaluate up to 35 sites, ultimately producing a ranking matrix and field assessment protocol to critique qualifying sites, and leading Cardno to provide final site recommendations to the Five Rivers MetroParks Board of Directors.

Following the final site selection and recommendation, our experts helped identify, design, permit, and oversee the construction of the GMMB, which includes more than 60 wetland restoration credits, 4,900 headwater habitat stream restoration credits, 19.4 wetland and riparian buffer credits, and 22 upland forest, tall grass prairie, and oak savanna habitat credits.

Cardno has since provided all required ecological monitoring and mitigation services for the project, including as-built surveys and six consecutive years of mitigation monitoring using the Ohio Environmental Protection Agency’s Vegetation Index of Biotic Integrity survey protocol. Cardno staff continue to monitor and maintain the successful establishment of the desired wetland acreage and progress of the stream restoration areas at the site.

The GMMB is the first stream mitigation bank in Ohio to provide 1:1 stream restoration credits. This project received a first place award for Natural Resources and Conservation from the Ohio Parks and Recreation Association. The newly established MetroPark was also featured as part of a National Public Radio (NPR) story.