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Federal
Estimated floodplain map for the conterminous United States
U.S. Environmental Protection Agency —
Understanding the relationship between flood inundation and floodplains is critical for ecosystem and community health and well-being, as well as targeting floodplain... -
Federal
EnviroAtlas - Portland, ME - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
GFPLAIN90_NorthAmerica
U.S. Environmental Protection Agency —
All floodplains were derived using modified scripts from GFPLAIN v1.0 (https://github.com/fnardi/GFPLAIN). This data was created by modifying the scripts to work with... -
Federal
Population Trends in Hazard Zones
U.S. Environmental Protection Agency —
Detailed tables (and some maps) at the county level of aggregation supporting figures and tables from Titus, James. G. "Population in floodplains or close to sea... -
Federal
GFPLAIN90_SouthAmerica
U.S. Environmental Protection Agency —
All floodplains were derived using modified scripts from GFPLAIN v1.0 (https://github.com/fnardi/GFPLAIN). This data was created by modifying the scripts to work with... -
Federal
EnviroAtlas - Birmingham, AL - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - Portland, OR - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - Fresno, CA - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - San Diego, CA - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - Chicago, IL - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
Gap to gap region data: soil, water level, modflow output hyporheic flow pathlines (2013-2015)
U.S. Environmental Protection Agency —
. In this study Light Detection and Ranging (LiDAR) data were used along with the head data from observation wells and stage data from rivers to setup and calibrate a... -
Federal
Dataset from Bunker Hill sediments microcosm study
U.S. Environmental Protection Agency —
A laboratory-based microcosm study was conducted from September 2023 to July 2024 by the Office of Research (ORD) Cincinnati Lab (ORD-CESER-LRTD-CAISB). QA Category B... -
Federal
EnviroAtlas - Pittsburgh, PA - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
GFPLAIN90_Artic
U.S. Environmental Protection Agency —
All floodplains were derived using modified scripts from GFPLAIN v1.0 (https://github.com/fnardi/GFPLAIN). This data was created by modifying the scripts to work with... -
Federal
GFPLAIN90_Siberia
U.S. Environmental Protection Agency —
All floodplains were derived using modified scripts from GFPLAIN v1.0 (https://github.com/fnardi/GFPLAIN). This data was created by modifying the scripts to work with... -
Federal
EnviroAtlas - Phoenix, AZ - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - New Haven, CT - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
Tolt Report Animations
U.S. Environmental Protection Agency —
Animation for Tolt North Fork Snow, Soil Moisture, Streamflow (mp4) Animation for Tolt River Floodplain Irradiance -
Federal
EnviroAtlas - Austin, TX - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%... -
Federal
EnviroAtlas - Virginia Beach/Williamsburg, VA - People and Land Cover in Floodplains by Block Group
U.S. Environmental Protection Agency —
This EnviroAtlas dataset describes the total counts and percentage of population, land area, and impervious surface in the 1% Annual Chance Flood Hazard area or 0.2%...