This page has a list of helpful links that provide information on the various projects concerning Harris County Flood Control, the  City of Houston, and the U.S. Army Corp of Engineers. The information and database’s found here do not belong to the Houston Stronger Coalition. For more information click on the logo‘s in each tabbed section. 

The project will improve the understanding of the risk of flooding in Harris County so that the public, local communities and emergency managers can make informed decisions to protect life and property that may be at risk during flood events.

The Harris County Flood Control District and the Federal Emergency Management Agency (FEMA) are partnering on a flood hazard assessment project that will use the latest available technology and data to produce the county’s most comprehensive and complete set of flood hazard maps and information.


Using new methodologies and technologies and the most granular data available, the Flood Control District will provide a better understanding of flood risks throughout Harris County, including previously unmapped urban flooding.


Other new data and information that will be utilized include updated terrain data and improved hydrologic and hydraulic modeling technology and methods.


The Flood Control District expects many changes to be reflected in the resulting flood risk maps that will impact how future projects, new development, and their associated mitigation strategies are implemented.

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.

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.

“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.”

The Texas Water
Development Board Flood Planning

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The Texas Water Development Board Flood Planning

Region 6 San Jacinto Flood Planning Region

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Region 6 San Jacinto Flood Planning Region