San Jacinto River Stage 3 Master Drainage Plan


SCH Number
Lead Agency
Riverside County Flood Control and Water Conservation
Document Title
San Jacinto River Stage 3 Master Drainage Plan
Document Type
NOP - Notice of Preparation
Project Applicant
Riverside County Flood Control and Water Conservation
Present Land Use
San Jacinto River and floodplain The zoning designation for the proposed SJR3 MDP facility within the unincorporated parts of Riverside County is ROW, MU – Mixed Use, SP – Specific Plan, and R-R – Rural Residential. See Attachment A

Document Description
As a result of the Conceptual Planning Report, the Riverside County District Board of Supervisors directed the Riverside County Flood Control and Water Conservation District to develop a master drainage plan for the San Jacinto River, Stage 3 (“SJR3 MDP” or “Project”) based on the “preferred alternative”. Four elements of the SJR3 MDP are considered essential for public safety and would be initiated by the District, depending on the availability of funds. These improvements are expected to be initiated within the next 10 to 20 years. Implementation of SJR3 MDP is expected to be in the near future, and would be the responsibility of the District in order to protect lives and properties from flooding. The SJR3 MDP will be analyzed on a project level EIR. It should be noted that the following SJR3 MDP elements have independent utility from each other and do not require one element to be completed prior to the construction of another MDP element nor is one element a foreseeable consequence of the other. Thus, the SJR3 MDP elements may be constructed one at a time or all at once.

Contact Information
Kevin Cunningham
Riverside County Flood Control and Water Conservation
1995 Market Street
Riverside, CA 92501

Phone : (951) 955-1526


33°48'3.04"N 117°12'22.19"W
Cross Streets
Total Acres
Parcel #
State Highways
215, SR 74
Perris Valley Airport
San Jacinto River; Perris Lake

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Master Drainage Plan)
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Tribal Cultural Resources Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects Energy Cons.
Reviewing Agencies
California Department of Conservation California Department of Parks and Recreation California Department of Transportation, District 8 California Department of Transportation, Division of Aeronautics California Governor's Office of Emergency Services California Highway Patrol California Natural Resources Agency California Public Utilities Commission California Regional Water Quality Control Board, Santa Ana Region 8 California State Lands Commission Office of Historic Preservation State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, Inland Deserts Region 6 California Native American Heritage Commission


Environmental Document
Appendix A Conceptual Planning Report   PDF 22357 K Appendix A-F   ZIP 96239 K Appendix G   PDF 99 K Appendix G   ZIP 59320 K Appendix H   ZIP 28805 K Form F   PDF 196 K IS   PDF 5811 K Letter   PDF 227 K NOP   PDF 2853 K Reach 1a   ZIP 967144 K Reach 1b   ZIP 142035 K Reach 2a   ZIP 401356 K Reach 2b   ZIP 813963 K Reach 3   ZIP 114741 K
Attachment A to SCH NOC   PDF 103 K NOC Final   PDF 262 K
State Comments
2019100376_CDFW_RiversideCountyFloodControlandWaterConservationDistrict_SanJacintoRiverLeveeStage3   PDF 3711 K 2019100376_NAHC_NOP San Jacinto River Stage 3 Master Drainage Plan Project 11   PDF 239 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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