From LID SWM Planning and Design Guide
Flat metal overflow with stone surround to reduce erosion around the cast concrete structure. Mississauga Road, ON
- Overflow inlet for newly constructed stormwater bioretentionA shallow excavated surface depression containing prepared filter media, mulch, and planted with selected vegetation. areas in median of Bradley Road. Village of Brown Deer, Wisconsin. Bradley Road, east of 51st Street. Photo from October 2015. Constructed summer 2015.
Photo credit: Aaron Volkening