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A Stormwater Action Plan for Sierra Vista

The Sierra Vista sub‐watershed drains to the San Pedro Riparian National Conservation Area (SPRNCA) and the City and region are currently withdrawing more water than is naturally replenished each year. This water deficit can be reduced through a holistic view of stormwater management within the subwatershed. Although this Stormwater Action Plan is specifically focused on the City of Sierra Vista it can serve as a guide for further adoption of Low Impact Development (LID) and green infrastructure practices throughout the Sierra Vista subwatershed.

Appendices For A Stormwater Action Plan for Sierra Vista

  • Appendix A – Hydrologic Modeling
  • Appendix B – Opportunities for Enhanced Channel Recharge
  • Appendix C – Cost Benefit Analysis Details
  • Appendix D – Sierra Vista Development Code
  • Appendix E – A Water Balance Scenario for Sierra Vista Sub‐watershed
  • Tech Memo - Buena #3 Geomorphic and Geologic Assessment
  • Tech Memo - Opportunities for recharge using grade-control structures

A Stormwater Action Plan for the Health of Sierra Vista and the San Pedro River

Watershed Management Group is working with the City of Sierra Vista to “fill the void” in the local water budget and enhance flow in the nearby San Pedro River. Taking what we’ve learned from our experiences working at homes, neighborhoods, and businesses, we applied Low Impact Development (LID) strategies across the Woodcutter Wash sub-watershed in Sierra Vista. Modeling the flow of stormwater produced at each site, and as it flows down to the San Pedro River, revealed that LID features (e.g. rain gardens) produce positive, tangible benefits when adopted on a broad scale.

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