Green stormwater infrastructures in Québec Integration in the urban fabric

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1 design + environnement Green stormwater infrastructures in Québec Integration in the urban fabric Mélanie Glorieux, landscape architect, M. Ing.

2 Overview of stormwater management in Québec Loi sur la qualité de l Environnement (L.R.Q., c.q-2) (1972) Politique nationale de l eau (2002) Guide de gestion des eaux pluviales (2011)

3 Overview of stormwater management in Québec Provincial policies apply mostly to new developments of 2 ha or more Detention basins Bioswales Oversized pipes Source : MDDELCC, Guide de gestion des eaux pluviales Clos Prévostois, Prévost Parc Léon-Poissant, Saint-Constant

4 Overview of stormwater management in Québec Municipalities integrate practices in their by-laws and help introduce new possibilities in stormwater management Stormwater and cycle path that link the different areas together Secteur Harmonie, Longueuil Blue/green network of bike and walking paths along the bioswales Parc Vincent d Indy, Longueuil secteur Harmonie

5 Overview of stormwater management in Québec Municipalities integrate practices in their by-laws and help introduce new possibilities in stormwater management Permanent water detention basin as filtration unit, Saint-Jérôme Constructed wetland with architectural features, Montréal Parc Schulz, Saint-Jérôme Parc Gewuez-Remer, Montréal

6 Overview of stormwater management in Québec Municipalities integrate practices in their by-laws and help introduce new possibilities in stormwater management Bioretention retro-fit, Granby Bioretention retrofit along two streets in Granby Bioretention planted strips in municipal parking lot in Mont- Saint-Hilaire Bioretention in municipal parking lot, Mont-Saint-Hilaire

7 Overview of stormwater management in Québec Municipalities integrate practices in their by-laws and help introduce new possibilities in stormwater management École Nouvelle-Querbes, Outremont Reducing impervious surfaces in school yards and alleyways. Ruelle verte, Ahuntsic-Cariterville

8 Ville de Montréal

9 Ville de Montréal Avenue Papineau Complexe environnemental de Saint-Michel

10 Ville de Montréal Avenue Papineau Complexe environnemental de Saint-Michel Centre sportif de soccer 2014 Entrée du CESM 2017 Lecocq (nouv. FC) François Prévost

11 Ville de Montréal Avenue Papineau Complexe environnemental de Saint-Michel

12 Complexe environnemental de Saint-Michel Limestone quarry Landfill Park

13 Complexe environnemental de Saint-Michel 3 watersheds Lac Nord - 107,2 ha Bassin Sud - 28,8 ha Bassin Ouest - 5,9 ha 2 detention basins 1 lake with filtering marsh

14 Complexe environnemental de Saint-Michel Constraints related to site hydrology Surface runoff water management to limit the percolation that promotes leachate No water retention permitted above landfill areas (72/192 ha) High water table Topography : minimal slope of 2% and a maximum of 30% 17 km of underground pipe top collect biogas and leacheate

15 Complexe environnemental de Saint-Michel Landscape architecture Master Plan

16 Complexe environnemental de Saint-Michel Phase 1 SECTION PLAN

17 Complexe environnemental de Saint-Michel Phase 1 Sitting areas along the path Swales

18 Ville de Montréal Avenue Papineau

19 Avenue Papineau Existing conditions Adjacent to secondary residential streets Planted mound as visual barrier to the busy street Drainage issues near the new soccer stadium Limited access near the planned entrance to the CESM

20 Avenue Papineau Existing conditions

21 Avenue Papineau Proposed layout

22 Avenue Papineau Existing street geometry

23 Avenue Papineau Proposed street geometry Planting in the meridian Sidewalk Bioswale Large sidewalk along the CESM

24 Avenue Papineau Bioswales Inlet Outlet Large sidewalk Engineered soil Inlet Sand Outlet

25 Avenue Papineau Longitudinal section of bioswale Overflow Threshold Detention, infltration and filtration Detention, infltration and filtration

26 Transformation at a large scale

27 An opportunity to give Montreal a comprehensive project including transportation, urbain design, sustainability and innovation.

28 Managing stormwater at the city scale Adapting to the process Design Construction Maintenance Monitoring Source : Savaria

29 Thank you!