Currituck County Stormwater Public Presentation

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Major Subdivisions and MajorSite PlansPerformance Standards for<strong>Stormwater</strong> Management Plans• Discharge capacity of our existing ditches isapproximately equal to peak runoff from the 2-year,24-hour storm event emanating from a wooded sitewith good soils.• For this reason:– All major subdivisions shall implement sufficient structuralcontrols to reduce the peak discharge from the 10-yearstorm event to a level equal to the peak runoff anticipatedfrom a 2-year event under wooded conditions.– All major site plans shall implement sufficient structuralcontrols to reduce the peak discharge from the 5-yearstorm event to a level equal to the peak runoff anticipatedfrom a 2-year event under wooded conditions.
Summary of Increased Requirements for100 acre subdivisionCurrent RulesM&N RecommendedSoil Hydro Group Min Max Min MaxA 0% 13% 2% 13%B 0% 9% 5% 13%C 2% 7% 5% 11%D 1% 6% 6% 10%
Page 3: Stormwater Management Plans• Two
Page 6 and 7: • A.1. FORM SW-001• Project Nam
Page 9 and 10: Requirements for Fill onIndividual
Page 11: Major Subdivisions & Major Site Pla
Page 19 and 20: Major Site Plan Case StudyEstimated
Page 21 and 22: Requirements for MajorSubdivisions
Page 23 and 24: Other• Lot line swales are requir
Page 25 and 26: Chapter 4: Low ImpactDevelopment•
Page 27 and 28: Appendix B: Best ManagementPractice
Page 29: Questions?Eric T. Weatherly, P.E.Co

Currituck County Stormwater Public Presentation

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