Project Location: The proposed site is located within Section 22, Township 79 North, Range 26 West, Dallas County, Iowa. Location maps attached. Latitude: 41.636965 Longitude: -93.860264.
Bank Objectives: The fundamental objective of compensatory mitigation is to offset environmental losses resulting from unavoidable impacts to Waters of the United States (WOTUS) authorized by Department of Army Permits. Other objectives include: restoration and enhancement of wildlife habitat, restoration and increase of aquatic resource functions lost from anthropogenic activities, increase of public resource functions, values, and resource stewardship awareness, reduction of sediment and nutrient loading, and the restoration of floodplain connectivity.
Project Description/Bank Establishment: The bank sponsor proposes to complete activities on 39.08-acres of publicly owned property that would result in the establishment of both stream and wetland mitigation credits. The goal of this project is to restore a reach of Little Walnut Creek and adjacent wetlands across a project area of approximately 2-miles. Several tributaries to Little Walnut Creek are also included. The project will generate an estimated 46,206 stream mitigation credits. The bank sponsor proposes to use many different in-stream methods to aid in restoring these portions of stream, including realignment, installing grade control structures, and reshaping of the channel banks. The sponsor also proposes to improve floodplain connectivity and improve habitat by creating wood riffles and toe wood within the stream. Improvements to the riparian buffer include vegetation management to remove invasive species and promote native species diversity. Another goal of this project is to enhance and preserve adjacent emergent wetlands to generate an estimated of 3.56 emergent wetland credits.
Service Area: The proposed primary bank service area will be the Upper Des Moines Service Area.
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