Project Profile_Audie Murphy Ranch-Menifee_6-13-19

PROJECT PROFILE | MENIFEE, CA Flagship Stormwater Solution Saves Developer Millions Modular Wetlands® System Linear

A Forterra Company

Menifee, California

Photo Credit: Shutterstock.com - By Brian Karczewski

Introduction Audie Murphy Ranch is a newly developed master planned community in Menifee, California and named after one of the most decorated American combat soldiers of World War II. Menifee is centrally located in the heart of Southern California between San Diego County and Los Angeles County. Within this new 450-acre residential development, there are a number of exclusive amenities: a brand new elementary school, club house, parks/open spaces, and an eventual 1,410 private residential properties.

During the initial stages of design and construction (prior to Bio Clean’s consultation), project engineers planned for two massive non-proprietary bioretention systems to address the site’s drainage and stormwater treatment requirements. These initial BMPs (Best Management Practices) were excessive in size compared to their treatment capacities and presented immense construction challenges. Situation Each planned BMP formed two river beds or “paseos” that were intended to collect stormwater runoff from the development’s 195 acres of impervious surfaces (60 acres of streets and 135 acres of roof and driveway areas). The developer nor the contractor realized that the two paseos would not only consume 50 acres of the 450-acre property, representing 11% of the total development, almost 3-times the size of the elementary school - but after breaking ground on the trenches and river rock processing, contractors began to project an added 2 years of construction time at a cost of nearly $3 million dollars.

5796 Armada Drive #250, Carlsbad, CA | 855.566.3938 | stormwater@forterrabp.com | www.biocleanenvironmental.com

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