Elm Drive LID Retrofit
The Elm Drive West project involved retrofitting a length of existing ROW in the City of Mississauga to incorporate stormwater treatment within the ROW. The stakeholders involved in this project included the City of Mississauga, the Credit Valley Conservation Authority, and the Peel District School Board. The retrofit was aimed at addressing SWM treatment of road runoff by implementing a combination of Low Impact Development bioretention and infiltration technologies. The retrofit was also designed with the objective of enhancing public awareness by creating a landscape recognizable as a ‘green/sustainable’ street.
Scope of Services
For the proposed ROW retrofit, TMIG was retained to undertake hydrologic analyses to establish a stormwater management strategy, complete the detailed design, and provide construction administration services.
The project included the preparation of a conceptual design which was then evaluated based on cost and effectiveness in providing appropriate stormwater treatment. The proposed LID measures will enhance water quality and improve the water quantity control. The proposed retrofit of Elm Drive West significantly reduces the existing release rate by 37% during the 2-year storm event to 13% during the 100-year storm event. It also reduces the runoff volume from the site by 29% during the 2-year storm event to 8% during the 100-year storm event.
City of Mississauga & Credit Velley Conservation Authority
2010 - 2011
2013 Ontario Consulting Engineering Award