Project Description

Client: Travertine Corporation
Location: Coachella Valley, CA

Q3 Consulting, a PROACTIVE company, is responsible for the technical studies and preliminary design for the development of a drainage and flood protection master plan for the proposed 905-acre mixed-use project located in the City of La Quinta and unincorporated Riverside County, California.

Q3 prepared updated hydrology for the 10 canyon drainages and 3 piedmont subbasins that discharged through the project site and encompass the 27 square mile watershed tributary to Dike No. 4.  Flood routing and storage analyses were prepared for the project site and entire impoundment area of Dike No. 4.  Two-dimensional flood routing models were prepared for the project site.  Using the results of the hydrology and hydraulic modeling a flood hazard mitigation plan was prepared.  The plan helped establish the footprint for the development site and identified the recommended flood protection improvements.  The studies were incorporated into a Drainage Master Plan for the site development.


  • Regional and local hydrology
  • 2-dimensional flood routing
  • Geomorphic assessment
  • Alluvial fan hydraulics
  • Regional facility sizing
  • Drainage master plan
  • Dike and levee evaluations
  • Coachella Valley Water District coordination and approvals

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