Nashville has high flood risk from the Cumberland River and its tributaries. The catastrophic May 2010 flood caused over $2 billion in damage and killed 26 people across Middle Tennessee. The Cumberland River crested at 51.86 feet, more than 12 feet above flood stage. Since 2010, Nashville has significantly strengthened its floodplain regulations and invested in flood mitigation infrastructure, but the city remains one of the highest flood-risk metros in the Southeast.
100-Year Floodplain (Detailed)
BFE established along the Cumberland River, Mill Creek, Whites Creek, Richland Creek, and Harpeth River. Flood insurance required for federally backed mortgages. Significantly expanded after the 2010 flood.
100-Year Floodplain (Approximate)
No detailed BFE study. Found along smaller tributaries and drainages throughout Davidson County.
500-Year Floodplain
Moderate risk. The 2010 flood exceeded the 500-year floodplain in many areas, putting these zones at greater risk than previously understood.
Minimal Risk
Outside 500-year floodplain. Most of Nashville. However, the 2010 flood demonstrated that extreme events can reach well beyond mapped zones.
Check your flood zone
Enter your Nashville address into ReadyPermit or FEMA's Flood Map Service Center. Metro Nashville Water Services maintains detailed flood maps updated after the 2010 flood.
Check 2010 flood inundation
Metro Nashville provides 2010 flood inundation maps showing actual flood extent. If your property was flooded in 2010, you face elevated risk even if outside current FEMA zones.
Get an Elevation Certificate
Required for insurance in A/AE zones. Hire a Tennessee-licensed surveyor ($350–$550). Critical for determining 3-ft freeboard compliance.
Obtain flood insurance
Required for A/AE zones with federally backed mortgages. Strongly recommended for any property that was in the 2010 flood footprint, regardless of current zone designation.
Review building requirements
Nashville's 3-ft freeboard requirement is one of the strictest in the nation. Check Metro Nashville Stormwater for all floodplain, detention, and construction requirements.
Check cumulative improvement rules
Nashville tracks cumulative improvements to structures. Once total improvements reach 50% of building value over time, full flood compliance is triggered. This is stricter than FEMA's single-project threshold.
Monitor river levels
NWS provides Cumberland River flood forecasts. Nashville's flood warning system provides alerts. Sign up at Nashville.gov for emergency notifications.
ADU Rules in Nashville
Eligibility, size limits, permit steps
Zoning in Nashville
Districts, development standards, FAR
Can I Build in Nashville?
Building capacity, permits, costs
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