Map showing drought conditions in the western United States in 2020

Does Less Pollution Mean Less Precipitation?

IIHR researchers Wei Zhang and Gabriele Villarini (IIHR director) have published research linking urban sprawl to an increase in rainfall and flooding during Hurricane Harvey.
A topographic map, with high points around a river
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IFC Completes Statewide Floodplain Maps

The Iowa Flood Center (IFC) recently celebrated the completion of a six-year project to develop updated floodplain maps for the 85 Iowa counties that were declared Presidential Disaster Areas after the 2008 Iowa floods.
Matthew Streeter on a dirt road
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Water-quality Project Underway in Buchanan County

A new project funded by the Iowa Nutrient Research Center aims to understand the nutrient reduction benefits of roadside ditches.
The IIHR team stands in front of the St. Louis models
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IIHR Models Sewer System for St. Louis

Researchers at IIHR—Hydroscience & Engineering are among the world’s leaders when it comes to modeling and design of sewer and stormwater conveyance systems.
A hand holds a trout
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Solving Urban Runoff Water-Quality Problems

IIHR, and the Cedar Rapids Public Works department installed real-time water-quality sensors on a stormwater outfall on McLoud Run