- Flood Model Methodology - Calculating property-level risk
- Historic Flood Methodology
- Which historic floods are included on First Street?
- Community Flood Methodology
- Flood Damage Methodology
- The Nation’s first flood adaptation database
- What is urban flooding? - Visit First Street to check your risk
- Tidal flooding - you could be at risk even on sunny days
- Data sources used to determine a property's Flood Factor
- A variety of public data sources are used to estimate flood damages
- What data sources are used to determine community risk of flooding?
- How do I know if my Flood Factor score is accurate?
- How does First Street account for uncertain future climates?
Flood Methodologies
Understand the methodological approaches used to determine a property's Flood Factor, estimate the cost of flood damage, and assess flood risk at the community level. Learn how historic flood events are replicated and how flood control structures are modeled, and review the data sources used in our models.