Case study:Tahlequah History Trail - Illinois River Restoration Project

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Location: 35° 55' 8.39" N, 94° 58' 19.33" W

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Illinois River Restoration Project\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=USA\" title=\"USA\"\u003EUSA\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Status:\u003C/b\u003E Complete\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EThemes:\u003C/b\u003E Water quality\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"Tahlequah History Trail - Illinois River Restoration Project","link":"","lat":35.918997236336,"lon":-94.972037128173,"icon":"/wiki/images/a/af/Red_marker.png"},{"text":"\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Title:\u003C/b\u003E Tahlequah Kaufman Park\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=USA\" title=\"USA\"\u003EUSA\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Status:\u003C/b\u003E Complete\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EThemes:\u003C/b\u003E Water quality\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"Tahlequah Kaufman Park","link":"","lat":35.902493468135,"lon":-94.971082261764,"icon":"/wiki/images/a/af/Red_marker.png"},{"text":"\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Title:\u003C/b\u003E Tahlequah Sequoyah Park - Illinois River Restoration Project\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ECountry:\u003C/b\u003E \u003Ca href=\"/wiki/index.php?title=USA\" title=\"USA\"\u003EUSA\u003C/a\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EProject Status:\u003C/b\u003E Complete\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003EThemes:\u003C/b\u003E Water quality\n\u003C/p\u003E\u003Cp\u003E\u003Cbr /\u003E\n\u003C/p\u003E","title":"Tahlequah Sequoyah Park - Illinois River Restoration Project","link":"","lat":35.914515903303,"lon":-94.968080869876,"icon":"/wiki/images/a/af/Red_marker.png"}]}

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Project overview

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Status	Complete
Project web site	http://lid.okstate.edu/illinois-river-restoration-project-information
Themes	Environmental flows and water resources, Habitat and biodiversity, Water quality
Country	USA
Main contact forename	Jason
Main contact surname	Vogel
Main contact user ID	User:Oklahoma Cooperative Extension Service
Contact organisation
Contact organisation web site	http://http://lid.okstate.edu/natural-stream-restoration
Partner organisations
This is a parent project encompassing the following projects	Illinios River-Private Property1, Illinois River- Private Property 3, Illinois River- Private Property2, Tahlequah Felts Park- Illlinois River Restoration Project, Tahlequah History Trail - Illinois River Restoration Project, Tahlequah Kaufman Park, Tahlequah Sequoyah Park - Illinois River Restoration Project, Tahlequah- Peavine Hollow

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Project summary

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Funding for this project is a result of a Clean Water Act State Revolving Fund Principal Forgiveness loan awarded by the Oklahoma Water Resources Board to the Oklahoma Conservation Commission. The money for the principal forgiveness loan comes as a result of the American Recovery and Reinvestment Act (ARRA). The ARRA required that states use 20% of their funds on green projects and since all natural methods will be used to stabilize the banks and improve water quality this project qualifies.

The loan’s purpose is to use natural techniques to stabilize eroding streambanks which will help improve water quality and reduce the amount of sediment entering the system. Loan proceeds will be used in the Illinois River and the Eucha/Spavinaw watersheds in northeast Oklahoma. These two watersheds were selected because several of the waterbodies in them are listed on Oklahoma’s Integrated Report as being impaired by nutrients and related causes. Both watersheds provide water for several communities ranging in size from less than 1,000 to over 300,000. Over million is being directed to the watersheds to improve water quality by instilling best management practices to reduce nonpoint source pollution. While these practices are resulting in noticeable improvements to the nutrient, sediment and bacteria loading, erosion is still a cause for concern. This project will help address this issue by stabilizing streambanks on twelve sites in the Illinois River watershed. Identification and prioritization of sites in the Illinois River and Eucha/Spavinaw watersheds are being done, and as money becomes available additional sites can be repaired.

The type of restoration work that will be done in the watershed is an environmentally sound approach that applies the principles of fluvial geomorphology to restore the stream system as close as possible to its natural condition. This approach will use locally available, natural materials such as boulders, rocks, fallen trees and root wads. These materials will be used to help re-direct the flow of the river to a more natural flow path, thereby taking pressure off an eroding streambank. In addition native plants will be used to re-vegetate the streambank helping to further stabilize them resulting in less sediment being pulled into the stream.

SITE SELECTION: This watershed was selected because it is one of the state’s highest priority watersheds serving as a water supply to numerous communities in several counties, as well as being designated as one of Oklahoma’s scenic rivers. Several stream segments are listed on the state’s impaired waters list for nutrients and related causes. In addition, this watershed has been the focus of an extensive program to implement best management practices and encourage enrollment in the U.S. Department of Agriculture’s Conservation Reserve Enhancement Program (CREP) to improve water quality by reducing phosphorus.

Staff from the OCC and Oklahoma Department of Wildlife developed a list of over 48 sites that would benefit from restoration work. Then, to narrow the field down to sites that could be completed within the funding time frame the OCC, staff from OSU and a representative from the U.S. Army Corps of Engineers Regulatory Permitting division narrowed the list of sites down to 11. Repair of these sites will provide substantial water quality and aesthetic improvement and will be able to be permitted and all work completed within the funding time frame. Four of the sites are located on the Illinois River, one site is on Barron Fork Creek, one site is on Tyner Creek and five sites are located within the city of Tahlequah on Town Branch Creek or a tributary.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information