Lewis & Clark Community College has been a leader in sustainability programs over the years, and last year, launched a couple of new certificate programs to train students for emerging careers in the field. One is a four-week program to address storm water technology, and students will be putting what they have learned to use as they build bioswales on campus.
Nate Keener, of Lewis and Clark's Sustainability department, explains how a bioswale filters storm water.
Click here for Keener's comments
Bioswales consist of a swaled drainage course with gently sloped sides and filled with vegetation, compost and sometimes riprap. The water's flow path, along with the wide and shallow ditch, is designed to maximize the time water spends in the swale, which aids the trapping of pollutants and silt.