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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 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…
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…
OC Road Laguna Canyon Road Segment 4 Phase 1
Geotechnical Design Report Revised Aerially Deposited Lead Report Material Report Aerial Deposited Lead Report
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…
Questions and Answers OC Loop Segments O P and Q Coyote Creek Bikeway Project
1. What is the OC Loop?The Orange County (OC) Loop is a vision for 66 miles of seamless connections and an opportunity for people to bike, walk, and connect to some of California’s most scenic…