By: Lexi Joseph & Nataly Torres Tree Box Filters By: Lexi Joseph & Nataly Torres
What is it? In ground containers or a concrete bottomless box Contains street trees Mostly found in urban areas Runoff (rainwater) is directed to the tree box, where it is filtered by vegetation and soil before entering a catch basin Similar to bioretention principles used in rain gardens, which enhance pollutant removal, improve reliability, standardize and increase ease of construction, and reduce maintenance costs. It has a underdrain consisting of a pipe surrounded by drain rocks and is engineered to bio filtrate (captures harmful chemicals) with mulch on top that supports the plants.
Why is it used? Used to manage stormwater (excess water/run off) Tree box filters decrease the amount of discharge by detaining stormwater volume and by regulating the amount of discharge Brings aesthetic value to a city One tree box holds 100-300 gallons of water Tree box filter in Reno, Nevada Vernon, California (regional effort to reduce storm water pollution)
What does it look like
Citations http://www.pvpc.org/sites/default/files/files/PVPC-Tree%20Box%20Filters.pdf https://www.werf.org/liveablecommunities/toolbox/treebox.htm http://www.cityofvernon.org/city-news/222-new-tree-box-filters-will-reduce- stormwater-pollution http://www.stormwaterassociation.com/tree-box-filters