These maps and flood boundaries are developed through geographical and historical data, and using hydraulic and hydrologic analysis. These are the maps used by citizens, government, insurance agents and banks to determine the risk of flood …

Explore maps and geographic data with ArcGIS Basic Viewer.

The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk.

Heavy rains, poor drainage, and even nearby construction projects can put you at risk for flood damage. Flood maps are one tool that communities use to know which areas have the highest risk of flooding. FEMA maintains and updates data through flood maps and risk assessments.

Regulated floodplains are illustrated on inundation maps called Flood Insurance Rate Maps (FIRMs). It is the official map for a community on which FEMA has delineated both the Special Flood Hazard Areas (SFHAs) and the risk premium zones applicable to the community.

The Tennessee State National Flood Insurance Program (NFIP) Office is pleased to provide this Quick Guide to help our citizens understand what floodplain management is and why floodplain development is regulated.

Mar 22, 2016 · Make your item easy to find, understand, and use by providing this information. This is a web map showing TNMap base photography with FEMA Flood Hazard Zones.

FEMA works with communities to provide information and resources online to view the Preliminary Flood Insurance Rate Maps. It’s important for property owners to understand options if they need to consider flood insurance, or if they disagree with the maps.

This map service represents Flood Insurance Rate Map (FIRM) data important for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP).

FEMA studies and maps three primary categories of flood risk: riverine, coastal, and shallow. The City’s Special Flood Hazard Areas (SFHAs) are based on riverine flooding and are delineated on the Flood Insurance Rate Maps (FIRMs).