Wildomar MDP Lateral C, Stage 3

Project Summary

Riverside County Flood Control and
Water Conservation District (2020-2021)
The purpose of this project is to alleviate flood potential within the City of Wildomar. For this project the District plans to construct an incised detention basin on the southeast corner of the intersection of Bundy Canyon Road and Monte Vista Drive in the City of Wildomar. The basin is located on District owned parcels and occupies approximately 15 acres. The basin will attenuate flows that would otherwise flow directly downstream across I-15. The project has the following components:
  • Detention Basin
  • Basin Outlet Storm Drain
  • Low Flow Storm Drain
  • EVMWD Sewer
  • Basin Inlet Channel and Intake Structure
  • 54-inch Storm Drain Relocation
  • Storm Drain Extension
  • Retaining Walls

IFE Role

IFE performed the design-level geotechnical investigation for the proposed basin. The IFE investigation included 22 subsurface exploration borings, laboratory testing, infiltration testing, site specific seismic response spectra, liquefaction, seepage, and slope stability analysis, seismic refraction survey and soil corrosivity evaluation. The primary geotechnical issues that will require mitigation appear to be loose alluvial soil within the area of the proposed stilling basin and transition structure. Shoring will likely be necessary for excavation and foundation construction in this area.