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2026 Catfish Stocking Schedule
Dates shown are week of stocking. Schedule is subject to change and will be updated as available.California Fishing License required age 16+ at all parks besides Irvine Lake.Week of March 16-20…
Prado Dam
Prado Dam is an existing facility constructed by the Corps of Engineers in 1941. The plan of improvement for the Prado Dam and reservoir, which has an estimated cost of $880 million includes…
Programs by Location
Search by Location
To verify if a particular address falls within an OC Road Fee Program, please visit the Geographic Information System (GIS) web map application atlightbulb ocgis.…
Plano Trabuco Road Fee Program
Year Adopted: 1981
Year Closed: 2020
Supervisorial Districts: 3 & 5
Cities covered by Plano Trabuco Road Fee Program: Rancho Santa Margarita
Program Description…
Protecting the Environment
The Santa Ana River and its shoreline are home to numerous threatened or endangered species, including the Santa Ana sucker, the least Bell's vireo, the southwestern willow flycatcher, and the…
Reading the FIRM
FIRM Instructions
To get access to the FEMA Flood Insurance Rate Maps (FIRM), click here.
To find a flood map for a specific address or landmark, you may type an address in…
Reference Materials
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)…