Auxiliary Dike and Floodwall Project

Document Description: NOTE: FONSI / Supplemental EA The Auxiliary Dike and Floodwall Project is part of the Prado Basin flood control improvements under the Santa Ana River Mainstream Project (SARP). The project analyzed and approved in the 1988 Phase II General Design Memorandom (GDM)/Supplemental Environmental Impact Statement (SEIS) and 2001 Final SEIS/Environmental Impact Report (EIR). The Auxiliary Dike and Floodwall Project would be constructed in the same fashion as the approved Auxiliary Dike; however, the design alignment would be slightly modified to reduce impacts to riparian and coastal sage scrub vegetation. The main objective of this project would be the same as the approved Auxiliary Dike project, which is to provide flood protection for the SR 91 Riverside freeway and to protect the lives and properties (homes and businesses) of individuals residing in the project area.

Contact Information: Naeem Siddiqui
U.S. Army Corps of Engineers
915 Wilshire Boulevard
Los Angeles, CA 90017
213-452-3852

Review Period Start: 2/2/2010
Review Period End: 3/3/2010
Development Type: Water Facilities
Project Issues: Cumulative Effects Landuse Wildlife Wetland/Riparian Water Supply Vegetation Traffic/Circulation Toxic/Hazardous Solid Waste Soil Erosion/Compaction/Grading Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Coastal Zone Archaeologic-Historic Air Quality Aesthetic/Visual
Reviewing Agencies: California Department of Parks and Recreation California Highway Patrol California Public Utilities Commission Caltrans, District 8 Caltrans, Division of Aeronautics Department of Conservation Department of Fish and Wildlife, Region 6 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Regional Water Quality Control Board, Region 8 Resources Agency