Latest News

Our research has been presented widely over the past few years:

Bahaya, B. and Gruden C. May 2018. “Improved performance of Green Stormwater Infrastructure through outlet control.” 11th Annual Ohio Storm Water Association Conference, Kalahari Resorts & Conferences, May 9-11 2018.

Bahaya B., Fortin J., Wong B., Kerkez B. and Gruden C. Oct 2017. “Estimating the Benefits of Active Control of Green Stormwater Infrastructure using Hydrologic Models.” in: Environmental Science & Policy Program Research Symposium 2017: Urban Environment, Kellogg Hotel and Conference Center 219 South Harrison Road, East Lansing, MI 48824. Oct 27th 2017.

Bahaya, B., Al-Quraishi, M., Rousseau, K. and Gruden, C. Sept 2017. “Effects of land use, topography, soil texture and imperviousness on sediment and nutrient loadings in the Western Lake Erie Basin.” Understanding Algal Blooms: State of the Science, 2017 Conference, Organized by The Ohio State University, Stranahan Theater, 4645 Heatherdowns Boulevard, Toledo, OH 43614. 14th September 2017.

Apul, D.S., Gruden, C., Burian, S., Gabarrel, X., Josa, A., Rieradevall, J., Petit-Boix, A. July 2017. “Handprint and Footprint of Growing Food in the Cities.” ISIE/ISST 2017 International Symposium on Sustainable Systems and Technology. Chicago, IL.


Our feature paper published in Environmental Science and Technology was selected BEST FEATURE of 2016.

Kerkez, B., Gruden, C., Lewis, M., Montestruque, L., Quigley, M., Wong, B., Bedig, A., Kertesz, R., Cadwalader, A., Poresky, A. May 2016. “Smarter Stormwater Systems” Environmental Science and Technology. DOI: 10.1021/acs.est.5b05870.

We are collaborating on an NSF-funded project with Dr. Defne Apul at the University of Toledo, Dr. Steven Burian from University of Utah and several researchers from Autonomous University in Barcelona (UAB).  The international collaboration is focused on Urban Agriculture.  Check out our project website.

For additional information, contact details and a link to Dr. Gruden’s cv are located on the About page.



Green Stormwater Infrastructure at UT


Tree filter and weather station located next to the Law School.

Bioswale Planting

UT Students planting the bioswale in September 2014.

Green stormwater infrastructure was constructed at the University of Toledo in 2014 from USEPA GLRI through Lucas County SWIF Funds.  These projects include a tree filter located adjacent to the Law School and a bioswale below Savage Arena.  Both structures are located between parking lots and the Ottawa River.  UT students have been intimately involved in design, construction, and ongoing monitoring of these sites. Below is a location and copies of educational signage posted at each of these locations.

Screenshot 2015-10-05 18.57.53

 Monitoring is an important aspect of green stormwater infrastructure since there is little data related to performance.  Data that exists is site specific. We have installed a weather station at the University of Toledo which collects real-time weather data including rainfall, windspeed, relative humidity, and temperature adjacent to the tree filter.  These measurements vary significantly with distance and are critical for accurate estimates of stormwater runoff. This data is publicly available online.

The link for the real-time data collected every minute: