Rancho Mission Viejo Runoff Management Plan

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Rancho Mission Viejo Runoff Management Plan | Rancho Mission Viejo, California
Client: Rancho Mission Viejo, LLC

Rancho Mission Viejo turned to Huitt-Zollars to prepare hydrologic and hydraulic, sediment yield, sediment transport, and geomorphologic analysis, and conceptual mitigation strategies, including peak flood control, erosion protection, and stream restoration. Efforts also include supplementing existing topographic data with field survey, preparation of HEC-RAS hydraulic models, detailed geomorphologic analysis including assessment of long-term trends, historic lateral stream migration, and stream channel regime equation analysis, all as a part of developing a stream channel mitigation plan to protect the major canyons and tributaries. The approximate 30,000-acre study area includes a wide array of drainage basin patterns and types of stream channel.

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