Historical flooding of Huntington Beach dates back to 1825. The most recent flooding was February 6 and 7, 1998, when a constant rainfall and heavy downpour caused street closures, intersection flooding, and up to 2-3 feet deep flooding in a mobile home park. A tornado caused damage on February 24, 1998, to a mobile home park.
Flooding can come with little warning. Residents in flood prone areas will be warned of an actual emergency condition by the sounding of a steady siren tone lasting three minutes. This signal will be provided by one or more local fire stations. Warning and emergency procedures will be announced on local cable TV, HBTV-3 (Channel 3) and radio stations KWVE (107.9 FM) abd KXMX (95.9 FM).
Although improvements to the Santa Ana River have reduced potential flood impacts, flooding in our city may occur. It may be caused by the Santa Ana River, East Garden Grove Wintersburg Channel, Talbert Channel, Huntington Beach Channel, or the Pacific Ocean. Most floods occur when the floodwaters leave the river or channels; however, abnormally large sea waves (tsunamis) from the ocean may create flooding near the coastline.
To determine if flood insurance is required for your property and to obtain flood protection advice, you may contact the Planning staff at (714) 536-5271.
Flood Insurance
Homeowner's insurance policies do not cover damage from floods. Because Huntington Beach participates in the National Flood Insurance Program (NFIP), you can purchase a separate flood insurance policy. This insurance is backed by the Federal government and is available to everyone, even for properties that have been flooded. If you don't have flood insurance, talk to your insurance agent.

Some people have purchased flood insurance because it was required when they got a mortgage or home improvement loan. Insurance is available for tenants to protect their personal property against flood loss and to property owners with older mortgages that do not require it.
More information about NFIP flood insurance requirements is available on the internet at Fema's Website. The site contains hazard information, a general flood map, and a frequently asked question page. You may contact them at 1-888-CALL-FLOOD. To obtain an elevation certificate or a floodproofing certificate, visit the following links:
What you can do:
Flood damage protection depends also on your cooperation and assistance. Here is how you can help:
- Always check with the City before you build on, alter, regrade, or add fill to your property. A permit is required to ensure that projects do not cause problems on other properties.
- If you see building construction without a City permit inspection card posted, contact the Building Department at (714) 536-5241.
- Check out information on floodproofing, flood insurance, and flood safety by calling the Planning Department at (714) 536-5271.
- Do not dump or throw anything in the storm drain catch basins or flood control channels. Dumping is a violation of the City's Municipal Code Section 14.24.030 and 14.24.035. Even grass clippings and branches can accumulate and plug the drainage system. The City has a flood control channel maintenance program which helps remove major blockages such as weeds and other debris. A plugged drain or channel cannot carry water, and when it rains, the water has to go somewhere. Every piece of trash contributes to flooding.
- If you see dumping or debris in the gutters, catch basins, or channels, contact the Public Works Department at (714) 536-5431.
- FEMA Flood Resistant Materials
