Floodplain

Revised FEMA Flood Insurance Rate Maps Effective August 15

The Federal Emergency Management Agency (FEMA) is formally revising the Flood Insurance Rate Maps (FIRMs) within FEMAHarris and Galveston Counties which may affect the floodplain designation of your property within League City. These new maps will become effective on August 15, 2019. For League City, this revision means that approximately 10,674 acres and approximately 3730 homes will be located within FEMA’s Special Flood Hazard Area (commonly known as the 100-year floodplain). The revision also has approximately 6,420 acres and approximately 7,378 homes located with the 0.2% Zone (formerly called the 500-year floodplain).

The City is required to adopt the revised FIRMs to continue participation in the National Flood Insurance Program (NFIP). The NFIP allows the City and property owners to be eligible for federally managed flood insurance, federally backed mortgages, federal grants, and federal disaster relief, thereby providing a means for property owners to financially protect themselves (a risk not covered by standard homeowner’s insurance policies). 

To read more about the FEMA flood insurance maps, click on Revised FEMA Flood Insurance Rate Maps.

Local Ordinances & Substantial Damage Determinations 

Communities that participate in the National Flood Insurance Program have a flood damage prevention ordinance or ordinance language that requires determinations of which structures need to be rebuilt more resilient after recent flooding. The primary goal of making substantial damage determinations is to reduce the risk of future physical and economic loss due to natural disasters.The local official who is designated to administer the National Flood Insurance Program in his or her community is responsible for making substantial damage determinations.Structures that are substantially damaged must be brought into compliance with local flood damage prevention requirements.

For more information about substantial damage, view Answers to Questions About Substantially Improved/Substantially Damaged Buildings.

Additional Resources en Español

https://www.floodsmart.gov/reclamos

Flood Zones Map

Effective FEMA FIRM Letters

Flood Zones

Use the Find Address tool in this map to locate flood zones in your area. Areas marked are considered as Special Flood Hazard Area (SFHA) wherein the defined area is considered to have a 1% chance of being inundated in any given year. Please use the FEMA panels below to see more detail about this information.

Flood Map

2019 FEMA Panels

Archived FEMA Panels

1999