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Flood Maps | FEMA.gov
https://www.fema.gov/flood-maps
webJan 22, 2024 · How to View and Obtain Flood Maps. The FEMA Flood Map Service Center (MSC) is the official online location to find all flood hazard mapping products created under the National Flood Insurance Program, including your community’s flood map. Map Service Center. National Flood Hazard Layer.
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Floodplain - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/flood-plain/
webOct 19, 2023 · Photograph. Article. A floodplain (or floodplain) is a generally flat area of land next to a river or stream. It stretches from the banks of the river to the outer edges of the valley. A floodplain consists of two parts. The first is the main channel of the river itself, called the floodway.
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Floodplain - Wikipedia
https://en.m.wikipedia.org/wiki/Floodplain
webA floodplain or flood plain or bottomlands [1] is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge. [2] . The soils usually consist of clays, silts, sands, and gravels deposited during floods. [3]
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Floodplain Management | FEMA.gov
https://www.fema.gov/floodplain-management
webFeb 17, 2023 · Floodplain management is a community-based effort to prevent or reduce the risk of flooding, resulting in a more resilient community. English Multiple groups with a stake in protecting their communities from flooding carry out floodplain management functions including zoning, building codes, enforcement, education and other tasks.
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Floodplain | River Dynamics, Erosion, Sedimentation | Britannica
https://www.britannica.com/science/floodplain
webfloodplain, flat land area adjacent to a stream, composed of unconsolidated sedimentary deposits (alluvium) and subject to periodic inundation by the stream. Floodplains are produced by lateral movement of a stream and by overbank deposition; therefore they are absent where downcutting is dominant.
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FEMA Flood Maps and Zones Explained | FEMA.gov
https://www.fema.gov/blog/fema-flood-maps-and-zones-explained
webApr 4, 2018 · Flood maps, known officially as Flood Insurance Rate Maps, show areas of high- and moderate- to low-flood risk. They are shown as a series of zones. Communities use the maps to set minimum building requirements for coastal areas and floodplains; lenders use them to determine flood insurance requirements.
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| FEMA Flood Maps Explained - FloodSmart
https://www.floodsmart.gov/all-about-flood-maps
webWhat is a flood map? Flood maps show a community’s risk of flooding. Specifically, flood maps show a community’s flood zone, floodplain boundaries, and base flood elevation. Property owners, insurance agents, and lenders can use flood maps to determine flood insurance requirements and policy costs.
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USGS Flood Information | U.S. Geological Survey
https://www.usgs.gov/mission-areas/water-resources/science/usgs-flood-information
webMar 4, 2019 · Explore the FEV. Visualize flooding. Interactive data visualizations for flooding related to hurricanes and flood events, quarterly streamflow summaries, and more. Explore our vizzes. View current flooding conditions. Access streamflow, precipitation, rate of change, NWS weather and flood stage, and more in the new National Water Dashboard.
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River - Floodplains, Erosion, Sedimentation | Britannica
https://www.britannica.com/science/river/Floodplains
webFloodplains are perhaps the most common of fluvial features in that they are usually found along every major river and in most large tributary valleys. Floodplains can be defined topographically as relatively flat surfaces that stand adjacent to river channels and occupy much of the area constituting valley bottoms.
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Benefits of Healthy Floodplains - The Nature Conservancy
https://www.nature.org/en-us/what-we-do/our-priorities/protect-water-and-land/land-and-water-stories/benefits-of-healthy-floodplains/
webSep 8, 2018 · Flood Protection: Floodplains provide a river more room as it rises, thereby reducing pressure on manmade flood protection structures, like levees and dams. Improved Water Quality: When inundated with water, floodplains act as natural filters, removing excess sediment and nutrients, which can degrade water quality and increase treatment costs.
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