Traditionally designed roads and bridges can easily withstand the occasional flood. But as storms that used to happen once every 100 years become more frequent and extreme, Iowa DOT must ensure its infrastructure is ready.
To determine how much water future storms may bring and how often flooding may occur, researchers studied historic flood events and used the data to develop a new online resource – the Iowa Flood Frequency and Projections Tool – that anyone can use.
In addition to updating its building standards, Iowa DOT is already using this project’s findings to redesign segments along two major highway corridors in the state.
Learn more about this project in Iowa DOT’s new research brief, and check out other Iowa DOT research efforts on the News & Publications page.
Delivering targeted solutions for Iowa's transportation future.
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