Water Resource Management

Wilson Creek and Oak Glen Creek Watershed Detention Basins

Location: Yucaipa, California

Wilson Creek and Oak Glen Creek originate in the San Bernardino Mountains and flow in a southwesterly direction through the City of Yucaipa. In an effort to reduce the threat of flooding, the city obtained federal funding to develop a flood control project that would achieve significant goals such as groundwater recharge, habitat preservation, non-point source pollution control, and water filtration, while providing recreational amenities to assist in public awareness.

DEA civil engineers and landscape architects prepared conceptual plans for the detention/desilting basin at Wilson Creek. The conceptual plan indicated a series of detention basins throughout the 48-acre site to provide flood protection and create recreational opportunities for the community. Hiking trails, picnic areas, informational kiosks, staging areas, and a parking area were identified as first priorities for construction once the detention basins had been addressed. The DEA team worked with biologists to identify critical habitat areas while developing appropriate strategies for mitigation. The project provided a successful solution to filtering urban runoff through a natural wetland habitat while minimizing pollutant loading.

Project Awards

  • Merit Award – American Society of Landscape Architects, 2010
  • Project of the Year Award for the Inland Empire – American Public Works Association, 2009
  • Project of the Year Award, Honorable Mention – ASCE Riverside/San Bernardino County, 2010
  • The Integrated Project of the Year Award – Santa Ana Watershed Project Authority, 2010