8/15/2023 0 Comments Nashville flood mapThe word flood leaves many people quaking in their boots. Approximately 5% to 10% of Nashville’s landmass could be considered flood zones or flood plains. Nashville has many flood zones throughout the city. These often lie along waterways and nearby bodies of water such as lakes. To help you better understand the risks, precautions, and frequency of Nashville flooding, we’ve sorted out the details you need to make an informed decision regarding buying in a flood zone.Ī flood zone is an area designated as high-risk for floodings. While hunting for homes in Nashville, it’s important to understand how common floods are and how the flood zones are defined. The increasing flood risk and devastating floods in Nashville’s recent past can make homebuyers even more apprehensive about committing to a new home. Title photo: Abbington Park neighborhood – Nashville Flood 2010.When you think of your future home, flooding can seem like your worst nightmare. “New Data Reveals Hidden Flood Risk Across America”. “Floodsmart | FEMA Flood Maps Explained”. “Find Your Home’s Flood Factor | Flood Factor”. If you live near a small creek or stream, make sure to check out your property on Flood Factor! To learn more about the ways in which climate change will affect flood risk in the future visit the ‘Environmental Changes’ tab on the Flood Factor website. Darker areas are home to up to 8x as many at-risk properties as compared to FEMA maps.Īs climate change continues to alter the natural landscape, informing oneself about the risks associated with these changes becomes even more important. In Tennessee, Flood Factor identified 3.8x as many properties as being at risk of flooding, 280,000 more homes than FEMA.Ī colorful representation of the differences between Flood Factor and FEMA Flood Maps. The differences do not end there! Nationally, Flood Factor identified 1.7x as many properties as being at risk of flooding as FEMA, equating to a total of 14.6 million properties, 5.9 million of which are not designated as high-risk by FEMA. Provide a more accurate flood assessment/risk into the future as opposed to theįEMA model, which in general does not accurately predict future flood risk. Precipitation patterns), works to model characteristics of ungauged streams,Īnd finds the flood risk associated with large rain events. It includesĮnvironmental changes that impact flood risk (sea level rise, changing More comprehensive approach when evaluating flood risk than FEMA. In addition to providing data, Flood Factor takes a much These scores better inform individual home buyers and property owners about the flood risk to their property compared to a generalized assessments for the region as a whole. Their website ( ) provides risk scores (ranging between 1 and 10) and an assessment of individual property’s risk of flooding over a thirty-year period. Flood Factor is the first comprehensive, publicly available flood risk model for the United States. This is the problem that The First Street Foundation, a nonprofit organization focused on providing publicly accessible flood information, attempted to fix through their Flood Factor study. Provide risk assessments for individual properties leaving millions of Provide maps for all areas of the US and does not include enough detail to However, despite its 40-year existence, FEMA has yet to Flooding adjacent to Richland creek during the 2010 Flood. In Nashville, FEMA maps were updated in the wake of the historic, 500-year flood that occurred in 2010. Relying on a combination of historic hydrologic, land use, and infrastructure data, these maps are used by insurance agencies and real estate agents to evaluate flood risk. Traditionally, the public is informed of these dangers through flood maps provided by the Federal Emergency Management Agency (FEMA), a group that works to provide federal assistance in the event of a natural disaster. Due to its unique combination of geologic and hydrologic features, Middle Tennessee has long been at an elevated risk for flooding.
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