100 Year Floodplain Houston Map. The "500Year" Flood, Explained Why Houston Was So Underprepared Harris County Texas Flood Any place with a 1% chance or higher chance of experiencing a flood each year is considered to have a high risk Structures located in a 1 percent (100-year) floodplain have a minimum of a 1 percent chance of.
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Flood maps show how likely it is for an area to flood Explore geographic data with this interactive ArcGIS web application.
Those areas have at least a one-in-four chance of flooding during a 30-year mortgage. Flood maps show how likely it is for an area to flood A major flood occurs somewhere in Harris County about every two years
100 Year Floodplain Map Texas Printable Maps. It does not mean that the flood will occur every 100 years; rather it is the flood elevation that has a 1- percent chance of being equaled or exceeded each year. Structures located in a 1 percent (100-year) floodplain have a minimum of a 1 percent chance of.
. Most of the flooding is in areas developed prior to the current understanding of flood potential and prior to regulations restricting construction in flood-prone areas Map Viewer Classic is a deprecated product and will be removed in Q1 of 2026