“When it rains it drains.” Illinois State University was the first public university in the State of Illinois to install pervious concrete to address water quality runoff. Pervious Concrete allows water to flow through the concrete and seep into the ground water.
First installed in the G- 73 parking lot (Main Street- Hancock Field), the project was used as a training session for area contractors, the Illinois Ready Mix Concrete Association, and the Indiana Ready Mix Concrete Association. A second and more significant design was installed in 2006 in the G -86 parking lot (School and Willow).
This project drains all storm water runoff through pervious concrete. It is designed not only to address “first flush” requirements, but can store up to 1 (one) inch of rain fall under the parking lot to percolate back into the soil, or the water can be directed to the storm water system after flowing through the underground gravel bed.
Preparing the site to install the permeable pavement
Laying the aggregate
Installing the porous drain.
Demonstrating how it works
