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Pool 12 Overwintering Habitat Rehabilitation and Enhancement Project

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Tippy Lake, Kehough Slough, Sunfish Lake and Stone Lake.

  • Need

    Presently, overwintering habitat for fish and backwater habitat for both waterfowl and fish are very limited in Pool 12.  Sedimentation of backwater lakes and sloughs has reduced the value of historic overwintering areas. The Iowa Department of Natural Resources documented that the overwintering habitat in Pool 12 has become a limiting factor for survival of riverine fish.

  • Project Description

    The goals of the project are to restore and protect aquatic off-channel habitat and to restore floodplain forest habitat.  The objectives identified to meet these goals are (measured by acres):

    1.  Increase the amount of deep water habitat in the backwater lakes complex of Pool 12 to provide pool-wide overwintering habitat for fish. Target depth is 6 to 8 feet.

    2.  Increase the depth diversity in the backwater lakes complex of Pool 12  to provide year round habitat for fish.

    3.  Increase sustainability of aquatic habitat in the backwater lakes complex of Pool12 by decreasing the sedimentation in the complex.

    4. Increase areal coverage in acres of forest stands with hard mast-producing trees as a dominant or component species in floodplain forest areas surrounding the backwater lakes of Pool 12.

     Stage I.  This Sunfish Lake project will restore approximately 16 acres of deep backwater channels, providing overwintering and year-round habitat for fish in the surrounding area. The dredged channel material will be used to construct berms which will help keep sediment out of the lake. Trees will be planted on the berms to enhance the floodplain forest habitat. 

    Stage II. This project will restore approximately 12 acres of deep backwater channels,providing overwintering and year-round habitat for fish in the surrounding area.  At Stone Lake, the dredged channel material will be used to construct berms which will help keep sediment out of the lake.  Trees will be planted on both the Stone and Tippy Lakes berms to enhance the floodplain forest habitat.  

     

  • Current and Future Activities

    • The Pool 12 Overwintering project will improve habitat in four lakes  – Sunfish, Tippy, Kehough,and Stone.   The work will be performed in three construction stages.

    • Stage I, Sunfish Lake:  Newt Marine Service (Dubuque, Iowa) began the Sunfish Lake construction in December 2013 and completed the work in December 2015.  This work included dredging over 2 miles of channels and constructing the adjacent berms.

     

    • Stage II, Stone and Tippy Lakes:  Newt Marine Service began the Stage 2 Stone Lake and Tippy Lake construction in October 2015.  The work at both Stone and Tippy Lakes each includes dredging about six acres of channels and constructing the adjacent berms.  

     

    • Stage III, Kehough Slough construction is anticipated to begin in Fall 2016.

     

  • Points of Contact

     Funding Agency
    Marvin Hubbell, Project Manager
    US Army Corps of Engineers,
    Rock Island District
    PO Box 2004
    Clock Tower Building
    Rock Island, IL 61204-2004
    (309) 794-5428
    marvin.e.hubbell@usace.army.mil

    Managing Agency
    US Fish and Wildlife Service
    Ed Britton, Savanna District Manager
    Upper Mississippi River
    National Wildlife & Fish Refuge
    7071 Riverview Road
    Thomson, IL 61285
    (815) 273-2732
    Ed_Britton@fws.gov

     

    Iowa Department of Natural Resources
    Mike Griffin
    206 Rose Street
    Bellevue, IA 52031
    (563) 872-5700
    Michael.Griffin@dnr.iowa.gov

  • Map

  • Recommended plan drawing

     This map shows all four lakes that are planned to be dredged as part of the habitat rehabilitation project.

    Learn More
  • Upper Mississippi River Restoration

    Upper Mississippi River Restoration Program

    Learn More
Last Updated: May 02, 2016
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