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.
Schilling stands with a table in a ditch

Linn County Residents Get Better Idea of 100 Year Flood Risk

Schilling stands with a table in a ditch

Should Davenport Build a Flood Wall?

Jacob Odgaard sits at a table
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Odgaard Wins H.A. Einstein Award

IIHR’s A. Jacob Odgaard recently received the ASCE’s H.A. Einstein Award for his leadership and tireless effort in the field of sediment transport and river erosion control.
Schilling stands with a table in a ditch

In a Flood-Prone State, Past Disasters Have Lessons to Teach

Schilling stands with a table in a ditch
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Road Ditches Reduce Nutrients

Keith Schilling’s recent research suggests that water quality challenges in Iowa and nationally would be even greater if it weren’t for a little appreciated feature of the landscape — road ditches.
Schilling stands with a table in a ditch

‘You don’t know what’s in the water’: How crews are tackling environmental threats flooding leaves behind