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Potential Impacts to Hines's Emerald Dragonfly and Gray Bat From Bridge Project Averted
Midwest Region, September 27, 2004
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In 2004, the Columbia Missouri Ecological Services Field Office worked with the Missouri Department of Transportation (MODOT) on a bridge replacement project along Missouri Hwy. 21, near the town of Centerville. An important fen adjacent to the project site has one of the highest density of Hine's emerald dragonflies per area currently known in Missouri. Additionally, the bridge scheduled for replacement was being used as a night roost by the endangered gray bat. The field office recommended MODOT determine the hydrology of the fen in relationship to the proposed road project and conduct additional dragonfly surveys at the fen. MODOT employed the services of a dragonfly expert, bat specialist, and a hydrogeologist to gather important information relating to the effects of the project on these endangered species. The studies revealed that the footprint of the project would not have direct or indirect impacts to the fen, its hydrology, and the dragonfly. By working with MODOT to provide conservation measures that avoid direct impacts to roosting gray bats, project review was able to be completed through informal consultation which avoided any delays in bridge construction. As a result of this coordination, MODOT is pursing other conservation actions, including possible purchase of the fen to preserve in perpetuity its value for the Hine's emerald dragonfly.

Contact Info: Larry Dean, 612-713-5312, Larry_Dean@fws.gov



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