The City Engineers Flood Control Advisory Committee (CEFCAC) was formed in August 1966 to provide cooperation between the Orange County Flood Control District (OCFCD) and the cities toward the best…

In this section you will find informational resources including online maps, reports, manuals, and links to County Standard Plans and other government resources. Reference Materials (in PDF format)…

The County of Orange has six active OC Road Fee Programs.  Each OC Road Fee Program has a specific Area of Benefit (AOB) that determines if an OC road fee is associated with the…

In this section you will find several informational resources including online maps, drawings, reports, manuals, and links to County Standard Plans and other government resources. Standard…

The East Garden Grove-Wintersburg Channel Improvement Project was officially completed in March 2023. Read and download the Notice of Project Completion. Watch the before and after drone…

Basemap of Drainage Facilities Basemap of Drainage Facilities OCFCD 1 OCFCD 2 OCFCD 3 OCFCD 4 OCFCD 5 OCFCD 6 OCFCD 7 OCFCD 8 OCFCD 9…

  Traffic Design & Signal Operations (TD&SO)TD&SO staff oversee the operation and maintenance of over 120 traffic signals and other traffic control devices within unincorporated…

The County, cities, and water/special districts located within the Orange County and San Diego Regional Water Board boundaries have been meeting since 2003 in an effort to work together on water…

A Best Management Practice is defined by the EPA as a technique, measure or structural control that is used for a given set of conditions to manage the quantity and improve the quality of stormwater…

As a result of the Third Term NPDES Municipal Stormwater Permits for Orange County, adopted by the Santa Ana and San Diego Regional Water Quality Control Boards in early 2002, the cities and County (…