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Flooding is a natural occurrence. Periodically, rain and melting snow cause our rivers and streams to rise and overflow their banks onto neighboring land. These areas of land, known as floodplains, are carved out by floods to carry excess floodwaters.
Clark County contains several large rivers and smaller tributaries, or streams that are prone to annual flooding events that pose threats to life and safety and cause significant property damage.
Large rivers include the Columbia, East Fork of the Lewis River and North Fork of the Lewis River, while streams include Salmon Creek and Washougal River.
Snow melt from the Cascade Mountain range contributes largely to flooding, and ongoing development within the county continues to displace natural areas that have historically functioned as flood storage.
The information on these Web pages can help you to be safe, mitigate, prepare, and be aware of the flood potential in Clark County.
What you can do:
- Read about recent flood events
- Learn about the 100-year flood
- Find out what causes flooding in our county
- Understand flood plains and regulations
- Gather information about your property
- Protect your property from flooding
- Review flood safety - before, during, and after a flood
- Discover your flood insurance options
- Contact FEMA
