US Flood Hazards Quiz
Floodplains, levees, flash floods, major events (10 questions).
US Flood Hazards Quiz: Quick Study Notes
Understanding flood hazards is essential for both geography students and property owners. This section covers key hydraulic definitions, historic US flood events, safety protocols, and the mechanics of levees and flash floods.
Key Takeaways
- Flooding is the most common natural disaster in the United States.
- “Turn Around Don’t Drown” is the critical safety advice for driving near water.
- Flash floods are the number one weather-related killer in the US.
- FEMA manages the National Flood Insurance Program (NFIP).
- Storm surge is the primary cause of coastal flooding during hurricanes.
Frequently Asked Questions
What is a flash flood?
A flash flood is a rapid rise of water along a stream or low-lying area, typically occurring within 6 hours of a heavy rain event.
What does “100-year flood” actually mean?
It does not mean a flood happens once every 100 years. It means there is a 1% statistical chance of that magnitude flood occurring in any single year.
Where is “Flash Flood Alley”?
This is a region in Central Texas (hill country) known for its steep terrain and heavy rainfall rates that lead to frequent flash flooding.
What caused the New Orleans flooding in 2005?
While Hurricane Katrina brought the storm surge, the catastrophic flooding was primarily caused by the failure and breaching of the city’s levee system.
Who manages US flood maps?
The Federal Emergency Management Agency (FEMA) is responsible for creating Flood Insurance Rate Maps (FIRMs) and managing the NFIP.
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