Description: -These 1%-annual chance floodplains were developed using approximate methods. Base flood elevations, depths, and velocities are not available. -Flood insurance is available by FEMA through the National Flood Insurance Rate program. These are not FEMA flood hazard areas, therefore, flood insurance is not mandatory in DWR floodplains. -RCFC received several sets of maps from DWR. The first sets included a page of backup for each floodplain. This backup consists of flow rates, depth and velocities ranges, and other data. The most recent set of digital files was received on July 25, 2011.
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Copyright Text: The State of California Department of Water Resources but updated regularly by FPM staff as inquiries and development is proposed
Description: San Gorgonio River and Smith Creek, June 1973.San Gorgonio River and Tributaries, October 1974.Santa Ana River Mainstem Project, August 1991.Wildomar Valley, 100-Year Flood Plain Limits, October 1979, as last revised May 1986Cactus Valley, 100-Year Flood Plain and Floodway Limits, March 1980.Cabazon Flood Study, Flood Hazard Areas, June 1980Lakeview & Sierra Vista Tracts, 100-Year Floodplain Limits, October 1990Tucalota Creek, October 1984Long Valley Wash, October 2002Paloma Wash, October 2002Warm Springs Creek, February 2003Juniper Flats Floodplain, May 2006Flood Insurance Study for Oasis Area of the Coachella Valley, April 2003
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Copyright Text: Floodplain Management staff of Riverside County Flood Control and Water Conservation District, USACE (United States Army Corps of Engineers)
Description: These data are intended for geographic display and analysis on the planning level and for all levels from the local neighborhood upward to smaller regional scales. The data is derived from remote imaging sources and may be displayed and analyzed with relative confidence from scales of 1:2400 to smaller. No responsibility is assumed by the Riverside County Flood Control and Water Conservation District in the use of these data.Supplemental Information: These data are derived from engineering drawings and image interpretation under the guidance of California Licensed Professional Land Surveyors. Every effort is made to insure the accuracy and precision of the data set. Additional information concerning the evolution and descent of these data may be acquired by contacting the GIS section of Riverside County Flood Control and Water Conservation District at RCFCGIS@RCFlood.org.
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Copyright Text: Credit for this material belongs solely to the Riverside County Flood Control and Water Conservation District.
Description: This data are intended for geographic display and analysis on the planning level and for all levels from the local neighborhood upward to smaller regional scales. The data is derived from remote imaging sources and may be displayed and analyzed with relative confidence from scales of 1:2400 to smaller. No responsibility is assumed by the Riverside County Flood Control and Water Conservation District in the use of these data.Supplemental Information: These data are derived from engineering drawings and image interpretation under the guidance of California Licensed Professional Land Surveyors. Every effort is made to insure the accuracy and precision of the data set. Additional information concerning the evolution and descent of these data may be acquired by contacting the GIS section of Riverside County Flood Control and Water Conservation District at RCFCGIS@RCFlood.org.
Definition Expression: N/A
Copyright Text: Credit for this material belongs solely to the Riverside County Flood Control and Water Conservation District.
Description: This data set of polygon features represents Riverside County's Incorporated City Boundaries. Topology has been run and all gaps and overlaps have been fixed. The data has been adjusted to match Riverside County Parcel Boundaries. The city name field is used to represent the citys' name. Every polygon that represents an incorporated city must have a city name.Maintained by Stella Spadafora, 06/04/12