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Chattanooga, TN · Hamilton County

Water Risk Profile — ZIP 37419

Flood risk, local cost data, climate factors, and insurance context for your ZIP code.

Flood Risk

High

Cost Range

$2,200–$12,000

Avg Response

42 min

NFIP

State participates

Local Climate & Risk Factors

Chattanooga sits at a bend in the Tennessee River surrounded by mountains and ridges — a geography that funnels flood events into the valley. TVA manages the Tennessee River system and provides significant upstream flood control via Chickamauga Lake, but extreme rainfall events still overwhelm the system. The city experiences severe spring thunderstorms and occasional flash floods from mountain terrain. South Chickamauga Creek has flooded repeatedly, causing significant damage in Brainerd and East Brainerd neighborhoods. Chattanooga's revitalized downtown waterfront development increases exposure of premium property to flood events.

Flood-prone areas: Brainerd and East Brainerd near South Chickamauga Creek have highest flood risk. Lookout Valley has mountain terrain flooding. North Shore and downtown waterfront are premium markets with river flood exposure.

Insurance tip: Chattanooga properties near South Chickamauga Creek or the Tennessee River need NFIP flood insurance. TVA management of upstream lakes reduces but does not eliminate flood risk. Downtown waterfront premium properties should carry guaranteed replacement cost coverage.

Water Category Cost Table — Chattanooga, TN

Extraction & drying cost per square foot by IICRC water category

Water Category$/sq ft
Category 1 — Clean

Burst supply line, clean appliance overflow

$3.74–$9.69
Category 2 — Gray

Dishwasher, washing machine, toilet bowl (no feces)

$9.69–$11.73
Category 3 — Black

Sewage backup, floodwater, toilet overflow with feces

$13.77–$17.6

Estimates exclude reconstruction (drywall, flooring replacement). National benchmarks: Cat 1 $3.75–$4.25, Cat 2 $4.10–$6.50, Cat 3 $7–$7.50/sq ft — adjusted for Chattanooga market (4.416/sq ft range).

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