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Consider Approving the Eastwood Lake Subwatershed Study Report and Recommendations.
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Staff:
Department:
Lance Norris, Director
Public Works
Chris Roberts, Manager of Infrastructure and Engineering
Sue Burke, Senior Engineer
Overview: The Chapel Hill Town Council adopted the Stormwater Master Plan in September 2014. A key recommendation of the plan was to continue the subwatershed studies. The Eastwood Lake Subwatershed Study is completed; staff have posted the draft report and appendices to the study website for public review and comment.
The projects identified in the Lower Booker Creek Subwatershed Study, e.g., Elliott Flood Storage in Booker Creek Basin Park, were prioritized and approved by the Town Council in 2017. As each subwatershed study is completed, more projects are identified and prioritized using the same criteria established in the Lower Booker Creek Subwatershed Study. To provide the Town Council with the information it needs to allocate resources that provide the most benefit and are cost effective, the new projects based on their scoring are merged into the existing priority list.
Recommendation(s):
That the Council adopt the Eastwood Lake Subwatershed Study Report and Appendices, and approve the attached merged priority lists of projects.
Key Issues:
* The consultant evaluated potential solutions for mitigating flooding, water quality, and stream stability problems, recognizing that there is a significant amount of existing development with little, if any, stormwater management in the Eastwood Lake subwatershed.
* The Eastwood Lake subwatershed land use is primarily single-family, the area is characterized by steep slopes, and the drainage system is comprised of mostly open channels and culverts.
* Most of the stream stabilization projects involve private property. Implementation will require participation by the property owners.
* The recommended projects provide local benefits and provide cumulative benefits to downstr...
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