United States Department of Transportation
i
Evaluation of the Iowa Department of Transportation’s Compensatory Wetland Mitigation Program
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2004-01-01
[PDF-215.96 KB]
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TRIS Online Accession Number:01001189
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Edition:Final Report
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Abstract:The purpose of this investigation was to evaluate the Compensatory Wetland Mitigation Program at the Iowa Department of Transportation (Iowa DOT) in terms of regulatory compliance. Specific objectives included: (1) Determining if study sites meet the definition of a jurisdictional wetland; (2) Determining the degree of compliance with requirements specified in Clean Water Act Section 404 permits. A total of 24 sites, in four age classes were randomly selected from over 80 sites currently managed by the Iowa DOT. Of the 24 sites evaluated, 58% meet or exceed Section 404 permit requirements. Using section 404 permit acreage requirements as he criteria for measuring success, 58% of the wetland mitigation sites investigate as part of this study are successful. Using net gain/loss as the measure of success, the Compensatory Wetland mitigation Program has been successful in creating/restoring nearly 44 acres of wetland over what was required by permits.
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