Loading...
HomeMy WebLinkAboutCoreSound_Wetland_Restoration_narrative_final.pdfLearning, Designing and Creating Natural Elements to Protect Water Quality on Back Sound A joint project between Core Sound and Waterfowl Museum US National Park Service Down East Middle School Sub -basin: 03-02-03 (White Oak) Hydrologic Unit: 03020301 Receiving Water: Lighthouse Channel/Back Sound, SA ORW Project Narrative This project involves the restoration and enhancement of a small wetland area in Harkers Island, NC. The 0.3 acre project will be located at the entrance to the Core Sound Waterfowl Museum & Heritage Center. The area is currently ditched, and drainage has impacted an adjacent wetland area. The area does support some native wetland vegetation, but much of the area has been taken over by invasives and upland species. Other human impacts over time have contributed to the loss of wetland functions at this site. This project will attempt to reverse the impacts of human intervention and drainage, and to restore functionality to the wetland area. The plan for the site includes some minor earthwork to create wetland planting zones, drainage controls, and a detailed planting plan to enhance the vegetative community. This project is being pursued cooperatively as a demonstration and an educational site. The design of the project is being led by Kris Bass Engineering, but will also include involvement from NC State University students. The project development, installation, and process will be completed cooperatively with the nearby Down East Middle School. It represents an excellent opportunity to teach young students about environmental careers and the need for this expertise close to home. Learning opportunities for students will include understanding the natural science related to water quality protection, but will also explore related STEM careers involved in a project like this. Resource management, engineering, soil sciences, landscape planning and land use issues will all be incorporated in the planning, design and implement of this project and students will have a chance to see these careers at work as they collaborate to plan and develop this project. Initial funding for this project and educational programs has been secured through a Duke Energy grant. This project will be especially important to the local community, not only as a protective measure for improving water quality, but as a community-based opportunity for the new middle school. The completion of this project will provide an excellent opportunity for Duke Energy, Core Sound and the Down East Middle School to work together on a highly visible project for Down East. Wetland Impacts This project involves restoring and enhancing current wetlands located on the property. The project will require excavating down a small portion of the two existing wetlands as well as excavating an existing ditch to allow for flow through the wetland areas. The ditch maintenance will include lowering the elevation of the area and adding two pools. The maintenance will also include adding a stone check dam across an existing ditch to promote flow through the proposed and existing wetland areas instead of allowing flow through the ditch. A small portion of the existing wetlands will be lowered to promote better flow through the entirety of the proposed wetland. The existing wetlands will be excavated down a maximum of six inches with a majority of the existing wetlands not being excavated at all. The existing wetlands will also receive supplemental plantings using known wetland plant species. The total impacted wetland acreage from the proposed plan is 0.01 acres. The total impact on the existing ditch area will be 0.05 acres and will include the installation of two deep pools and a rock check dam.