Progress Update

Santa Clara River Watershed Flood Insurance Re-Study


The Federal Emergency Management Agency (FEMA) in collaboration with Ventura County local communities has been conducting a Flood Insurance Re-Study (FIS) for the Santa Clara River watershed. The study area covers the cities of Ventura, Oxnard, Santa Paula, Fillmore, and the county unincorporated areas. A Preliminary Flood Insurance Rate Map (FIRM) was release on September 26, 2014. In May 2018, a flood risk review meeting was held in county office in Ventura to introduce the preliminary maps and collect comments from local communities. Since the release of the preliminary FIRM, the Ventura County Public Works Agency-Watershed Protection and the cities have worked together to perform technical reviews and submit appeals to FEMA to ensure the flood hazard mapping products are produced using the latest technologies and are based on the best available information. Incorporating the review comments and technical appeals, FEMA has released a Revised Preliminary FIRM on July 31, 2020. Local communities have 30-days to comment on the revised preliminary maps followed by a 90-day appeal period.

You can find the Preliminary FIRM at:

Progress Update

California Coastal Analysis and Mapping (CCAMP) for Ventura County Coast


FEMA released the Preliminary Flood Insurance Rate Map (FIRM) on September 30, 2016. Following the release, public outreach meetings were held in cities of Ventura and in Oxnard in May 2017 to introduce the preliminary maps to the affected communities and to collect comments from residents. During the appeal period which ended in September 2017, the Ventura County Public Works Agency in collaboration with cities of Ventura, Oxnard, and Port Hueneme, and local communities had conducted a detailed technical review of the coastal flood hazard analysis and mapping products and submitted review comments and appeals to FEMA. After resolving all the comments and appeals, FEMA issued a Letter of Final Determination (LFD) on July 29, 2020 and the Preliminary FIRM will become effective on January 29, 2021. According to the National Flood Insurance Program (NFIP) regulations Section 60.3 (d and c), local communities are required to adopt the effective FIRM and the Flood Insurance Study (FIS) reports thereafter.

You can find the Preliminary FIRM at:






While Ventura County’s weather patterns can be unpredictable at times, it is crucial that members of the community understand the risks of the aftermath of a wildfire. Heavy rainfall in burn areas after a wildfire cannot absorb the water causing flooding as well as the danger of landslides, mud flows, and debris flows.

Many risk factors are involved in flooding events, with little to no warning, including damage to infrastructures including roadways, bridges, public buildings and residential homes putting the public in danger.

While the Ventura County Public Works Agency’s Watershed Protection District works to ensure the safety of the public by reducing the impact of flooding, erosion and water pollution on our community to protect lives, property and the environment, it is imperative to prepare your own home and property while also knowing the steps to take in the event of a flood.

To ensure you and your family are ready for natural disasters, including floods visit the #CAFloodPrepWeek booth Oct. 21-25 from 8 a.m. to 5 p.m. at the Hall of Administration, County of Ventura for additional information and resources regarding disaster preparedness, flood hazard, flood safety, and flood insurance. In addition, a free copy of the Homeowner Guide for Flood, Debris, and Erosion Control and staff will be available to answer your specific questions about flood hazards, flood safety, and flood insurance.

Tips to prepare before or in the event of a flood

Be prepared to respond to flooding by taking the following actions before rainfall and flooding begin:

  • Assemble emergency supply kits for your home, workplace, and vehicle.
  • Store the materials for protecting your home in a location away from potential flooding
  • Maintain fuel in your cars; electrical outages might make gasoline pumps inoperable.
  • Identify safe routes from your home or work place to higher ground. Determine whether you can use these routes during flooding or storms.
  • Clear debris and overgrowth from gutters and storm drains.

If a flood is likely in your area, you should:

  • Listen to the radio or television for information.
  • Be aware that flash flooding can occur. If there is any possibility of a flash flood, move immediately to higher ground. Do not wait for instructions to move.
  • Be aware of streams, drainage channels, canyons, and other areas known to flood suddenly. Flash floods can occur in these areas with or without such typical warnings as rain clouds or heavy rain.

If you must prepare to evacuate, you should do the following:

  • Secure your home. If you have time, bring in outdoor furniture. Move essential items to an upper floor.
  • Turn off utilities at the main switches or valves if instructed to do so. Disconnect electrical appliances. Do not touch

electrical equipment if you are wet or standing in water.

Subscribe to these resources for additional helpful information:

Ventura County recently released  their new updated floodplain management ordinance. Please visit the following link to view the ordinance.


FEMA released preliminary flood maps for coastal areas of Ventura County in April 2017.  FEMA has initiated the “90-day Appeal Period” starting June 9, 2017, and ending on September 6, 2017.  The 90-day Appeal Period is the opportunity for affected residents to directly challenge FEMA through an appeal and/or comment on the Preliminary Maps released by FEMA.  To view and download the FEMA Preliminary maps, go to the link below and look for the issue date of September 30, 2016, Maps:

FEMA is tentatively anticipating to make the map changes effective in July 2018. We encourage potentially affected property owners to check back for updates on the final effective date.

Click here to read the County of Ventura's Flood Warning Program Report. Click here to view the maps.