Harris County is vulnerable to a wide range of natural hazards including flooding, tornadoes, tropical storms, and hurricanes. These hazards threaten the safety of residents and have the potential to damage property, disrupt the local economy, and impact the quality of life of residents of Harris County. While we cannot eliminate natural hazards, there is much we can do to lessen their potential impact upon our community and residents. We are required to file a new plan every five years.

Throughout 2019, the Harris County Office of Homeland Security & Emergency Management will be working with our jurisdictional partners as well as others in the public and private sector to produce the 2020 edition of the Harris County All Hazard Mitigation Plan. The information on this website is intended as a reference for our mitigation planning partners as well as the public.

Harris County is one of the most dynamic counties in the country — a region of an estimated 4.6 million people that has grown twice as fast as the rest of the country in the last two decades.
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But Hurricane Harvey and other major flooding events have harmed our region, and we recognize the risk of such events occurring with increasing frequency in the future.

​We are taking this challenge head-on by investing billions into flood control, housing, and emergency preparedness. Through this website, we will share our progress, receive feedback from the community, and build a stronger and more resilient Harris County.
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“Build Houston Forward (ReBuild Houston) is the city’s program to enhance, improve and maintain our streets and drainage systems without accruing additional debt.

Houston is a unique place with a unique set of needs to keep the city flowing, growing and moving. First, Houston’s weather and soil structure make all our streets especially prone to potholes. Then add a Houston-sized number of large trucks hauling massive loads that also cause extra wear and tear on local roads. Finally, Houston is the only city of its size with no zoning. This makes planning drainage, especially during heavy storms, a challenge.”

“The purpose of the Harris County Flood Control District’s Flood Education Mapping Tool is to provide information about the boundaries of mapped floodplains in Harris County relative to residences, businesses and other structures. Floodplains are officially delineated on the Federal Emergency Management Agency’s Flood Insurance Rate Map (FIRM or floodplain map) for Harris County. While the floodplains shown on the Flood Education Mapping Tool are the floodplains delineated on the FIRM, the Flood Education Mapping Tool is not the effective FIRM.

The Flood Education Mapping Tool was initially developed as a mapping tool for the Tropical Storm Allison Recovery Project (TSARP), which was launched shortly after Tropical Storm Allison struck Harris County in June 2001. Its purpose was to serve as a tool for Harris County residents to learn the location of their properties in relation to mapped 1 percent (100-year), 0.2 percent (500-year) and coastal floodplains. The Flood Education Mapping Tool includes regularly-updated floodplain information from the FIRM for Harris County, interactive legend options, a simple map display and easy map navigation.”

Click to Download PowerPoint for Program

The Texas Water
Development Board Flood Planning

Click to visit: [https://www.twdb.texas.gov/flood/index.asp]

Region 6 San Jacinto Flood Planning Region

Click to visit: [https://www.twdb.texas.gov/flood/planning/regions/6/index.asp]