The City installed a filtration basin in a City-owned lot on the NW quadrant of Brenner Avenue & Millwood Avenue. The City purchased the lot in 2011 to address neighborhood drainage issues and it is currently used for stormwater purposes.
The modification from its current state required the removal of the trees, grading a basin at a constant elevation, and some storm sewer pipe work. The lot was restored using a mix of trees, shrubs, and native vegetation.
The filtration basin will help alleviate some local flooding issues and help improve water quality going to Charley Pond and Lake Owasso. On an annual basis, the filtration basin will remove 12 lbs of phosphorus from the stormwater, which is the major contributing factor to algae blooms. One pound of phosphorus can lead to 500 lbs of algae, so this basin will help keep an estimated 6,000 lbs of algae from blooming in our local water resources on an annual basis.
The City partnered with the Ramsey-Washington Metro Watershed District for cost share funding, and also to ensure both organizations’ Water Management Plans were met.
The basin at Brenner Avenue and Millwood Avenue will have a similar look to the existing basins, once established. The City will maintain the basin at Brenner Avenue and Millwood Avenue on a monthly basis, which is standard procedure for other stormwater projects around the city.
Timeline:
Installation completed in 2020.
Monthly management of the area to promote proper establishment and operation is ongoing.y heading