Lower Santa Ana River
Improvements to 23 miles of existing channel from Weir Canyon Road to the Pacific Ocean include channel widening, improvement to the existing Greenville-Banning Channel located parallel to the river…
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Local Flood Hazard
The major flooding threat in Orange County has been the Santa Ana River. In 1938, the Santa Ana River flooded parts of Anaheim, Santa Ana, and Garden Grove, reportedly killing more than 50 people.…
Local Cooperation Agreement
On December 14, 1989, the U.S. Army Corps of Engineers (COE) and the County Flood Control District of Orange, Riverside and San Bernardino as Local Sponsors, entered into a four-party Local…
Moulton ParkwayLaguna Niguel Road Fee Program
Year Adopted: 1987 Supervisorial District: 5 Cities covered by Moulton Parkway/Laguna Niguel Road Fee Program: Aliso Viejo, Dana Point, Laguna Beach, Laguna Hills, Laguna Niguel, Laguna…
Obtaining the FIRM
FEMA Flood Insurance Rate Maps (FIRM)Flood Insurance Rate Maps (FIRM), a.k.a. Flood Maps, can be viewed through the Federal Emergency Management Agency's (FEMA) Map Service Center. If you have the…
OC Traffic Committee
email Sign up for Email Updates from OC Traffic CommitteeThe OC Traffic Committee (OCTC) holds monthly meetings at 10:00 a.m. on the second Thursday of each month. Meetings may be cancelled if…
OC Public Works
WORKING FOR ORANGE COUNTY OC Infrastructure Programs provides engineering services for roadways in unincorporated areas and regional flood control programs throughout Orange County. This…
Online Manuals
Several of these manuals are available both in their entirety and broken down into sections for easier downloading.Title Computer Aided Design (CAD) Standards Manual (Version 1.0 - January 2023)…
POSTBURN Preparedness
Homeowners’ Guide for Post-Fire Flood, Debris, and Erosion Control We know from past experience that burn areas are especially susceptible to damage from flooding, and mud and debris flows that…