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Moccasin Bend Stream Bank Stabilization Project

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 This web site is designed to inform you about Moccasin Bend Stream Bank Stabilization Project in Chattanooga, Tennessee.
 


Project Summary:
  • The 750-acre Moccasin Bend National Archeological District is located across the Tennessee River from downtown Chattanooga, Tennessee.  It is a unit of Chickamauga and Chattanooga National Military Park (CHCH). 

     It is a significant archeological site because the Native American presence can be traced back over 10,000 years.  The site contains valuable cultural resources of Native American and Civil War origin (and more), and is one of the most significant archeological sites in the southeast.  The Trail of Tears crossed Moccasin Bend in 1838.  Perhaps the most significant features are the two Native American village sites at Hampton Place.  The combination of history at the site and the site’s location near downtown Chattanooga provides a great opportunity to attract large numbers of people to the area.

    Significant riverbank erosion is occurring along the approximately 5.8 miles of riverfront along the Tennessee River.  It has been estimated that that ten to fifteen feet of riverbank has eroded into the river over the past twenty years.

    Due to the very great concentration of archeological resources in this area, significant cultural resources (including possible burial sites) are being lost to riverbank erosion.

     Moccasin Bend is a first of its kind because it was added to an existing park (CHCH) as a sub-unit.  Its status will ensure that the archeological and culturally significant sites on the peninsula remain so that the National Park Service (NPS) can tell the site’s story to future generations. 

    The U.S. Army Corps of Engineers, Nashville District (Corps) (for the U.S. Department of the Army) and the National Park Service (for the U.S. Department of Interior) entered into an Interagency Agreement that governs the planning and design for the project.   

    Nashville District, Corps of Engineers is performing the work for the NPS.  The purpose of the project is to stabilize the right descending riverbank of Moccasin Bend on the Tennessee River in order to protect the cultural resources and prevent additional losses of these assets to the river via erosion and slope failure.  Of the approximately 5.8 miles, there are about 1.2 miles of bank along the southern end of the peninsula that already have riprap.  The Corps will stabilize the 4.6 miles on the east and west sides and “dress up” the 1.2 miles as needed. 

     The Corps is providing planning and design services, field investigations, development of alternative designs, final design and preparation of contract plans and specifications for riverbank and cultural resources protection measures, including National Environmental Policy Act (NEPA) compliance and related coordination, and consultation with the State Historic Preservation Office (SHPO) and Tribal Historic Preservation Office (THPO). The Corps has received $494K for execution of this work.   

    It is likely that first reach to be protected extends from the downstream end of the existing riprap to at least as far as the downstream limit of Hampton Place. 

     

  • Three key issues.
    • Protection of cultural resources - our intent is to protect the resources using methods that are minimally intrusive and, therefore, do not significantly impact what we are trying to protect; we plan to stabilize without laying back the bank. 

    • Stabilization methods - the key design tools we have are riprap and bioengineering (the use of plants); we are likely to use a combination of the two, with the selected designs varying at different locations along the riverbank because of the various design conditions (slope, height, soil type, cultural resources, etc.).  Our design will consider initial cost, effectiveness, aesthetics, non-intrusiveness, maintenance costs and other factors.

    • Funding - Congress has made funding of the project a high priority and hopefully will fund the construction costs over multiple years.   Congress has appropriated $2 million for FY 2006, which starts in October 2005.  This money will be used to fund the first phase of construction, which will begin to protect the most sensitive cultural resources.

 

 

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Key Milestones

  • Public Law (P.L. 109-54),  the Interior-EPA Appropriations Bill (H.R. 2361),  authorizes $2M for Moccasin Bend on August 2, 2005.

Points of Contact: 
Questions about this page: Dave Treadway
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Page Last Updated:
12 May 2006

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