The City of Grand Prairie has 12 major watersheds. Each of these watersheds has areas that are subject to flooding, both from rising stream waters and localized street and yard flooding.
Areas of historical flooding include parts of East Jefferson Street (Willow Bend Mobile Home Park, Sunset Golf Course, etc.), Carrier Parkway by McFalls Park, Fish Creek at Interstate
20, and the Trinity River Corridor.
Stream flooding areas have been mapped by the Federal Emergency Management Agency (FEMA); however, localized street flooding has not been mapped. Your property may have never been flooded or may be shown on the FEMA maps to be outside the mapped limits of flooding.
However, most areas of the city have yet to see the record 100-Year (1%) storm event, and there is no guarantee that your property will never flood. Statistics show that the 100-Year (1%) storm event has approximately a 30% chance of occurring over a 30-year mortgage period. These Floodplain Web pages will give you some ideas of what you can do to protect your property.
Real time river gauge information:
Elevation Certificates of all properties in the Special Flood Hazard Areas (SFHA’s) are available and on file at the Engineering Department office, and copies are available upon request.