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Water Use in the United States
How much water do we use in the United States? How do those numbers change over a 5 year period?
Floods
The 100-Year Flood
What is a 100-year flood and why don't these floods happen every 100 years? This simple fact sheet describes the statistics behind the designation and explains why regular measurements are essential for understanding them.
USGS Flood Information
The best starting point for information about current and past floods. Includes links to alerts, maps, photographs, and videos.
The 100-Year Flood- It's All About Chance
The term "100-year flood" is part of the national lexicon, but is often a source of confusion. Download and/or print this free poster that attempts to explain the concept, probabilistic nature, and inherent uncertainties of the "100-year flood" to the layman. Print full-size at 44" x 38" or on 11" x 17" paper.