U.S. streamgages cover less than 1% of waterways. Expansion is key for faster flood warnings

Flood risk can be estimated in waterways without streamgages, but not as accurately.

Flooding is one of the deadliest and costliest natural disasters in the U.S., causing billions of dollars in damage each year. In 2024 alone, floods destroyed homes in over a dozen states and claimed more than 165 lives.