Story Map: At what scale does natural infrastructure have the biggest impact on community resilience?

As part of the N-EWN collaboration, IRIS researcher Dr. Matt Bilskie (Assistant Professor in the College of Engineering, University of Georgia), along with his research partner with the U.S. Army Corps of Engineers, Dr. Amanda Tritinger and their team of collaborators set out to find out.

It can be difficult to assess the real-world impacts of a natural infrastructure project, so the researchers used models to determine how big or small projects needed to be to have the biggest impact on flooding in coastal and riverine systems.

To help explain their process and results, the researchers developed a storymap.

Visit it here:


The Network for Engineering with Nature (N-EWN) invites you to join us for The N-EWN Knowledge Series: A Continuing Education Series about Engineering with Nature. The next webinar will be held on Tuesday, September 21 at 12:30 EST at which Brook Herman (PhD, USACE-ERDC) will be sharing about characterizing USACE EWN projects and progress on building a project inventory.

This presentation will review the current EWN ProMap and how proposed changes to the online database will increase our ability to track and assess how well projects are contributing to multiple environmental, economic, and social benefits. Proposed changes to data entry field include information on what assessment methods were used to calculate benefits and how aspects of the project contribute to various ecosystem goods and services.

To register, please visit

Continuing Education Credit (1-hr) will be available to all attendees who join live. A recording of the webinar will also be made available online at following the presentation.

Dr. Marshall Shepherd Explains the Human Impacts of the Flooding in New York City in Latest Forbes Article

In his latest article in Forbes, Let’s Talk About Human Impacts on the New York City Floods — It’s Not Just Greenhouse Gases, Dr. Marshall Shepherd, Climate Science and Outreach Director for IRIS, digs into how humans impacted flooding in New York City during the aftermath of Ida.

“Many mitigation strategies and stormwater management systems in cities like New York or Atlanta are outdated,” writes Shepherd in the article, explaining how infrastructure and human-planning has impacted the resilience of our cities. “They are engineered based on what Bledsoe often calls “stationarity,” or the assumption that heavy rainstorms falling on New York City in 1965 look like ones that do today. They don’t and our stormwater management systems are quickly overwhelmed. Flooding is not just a function of what falls from the sky.”

Read the full article here: