Native vegetation planted in an open channel are more attractive than concrete or rock-lined channels. Bioswales require less maintenance than traditional hard-structure channels as the permeable surface allows water to move through the system into the groundwater system rather than flooding surrounding areas or sitting on the hard surface. The lack of ponding also limits freeze-thaw issues, surface cracking, and weed growth through the hard surface.
Bioswales are designed to remove sediment, nutrients, metals, and other pollution from surface waters. Bioswales slow the flow of water allowing water to reach the groundwater system rather than staying in the storm drain system. The roots of the plants house useful organisms that convert the pollutants into plant growth. Water is also captured by the plants themselves and used in plant growth. All of these features contribute to less polluted water entering the Blue River.