Public Market, Longueuil

The objective sought in the design of the Longueuil public market’s stormwater management system was to combine Optimal Rainwater Management Practices (PGO) with water in order to obtain the best possible performance. Several BMPs have been associated according to the different sectors and sub-watersheds of the site, on a 250-space parking lot.

BMPs have different management and processing systems depending on their nature. The main treatment principles for the various BMPs on the site are physical, chemical and biological. Some BMPs combine several processing functions in the same work.

The Longueuil public market is an opportunity for the Association des Producteurs Maraichers du Québec (APMQ) to review the experience of consumers visiting public markets. The project is also an opportunity to give a particular and renewed signature to the public market through architecture, but also through water management and the recovery of rainwater. The Longueuil public market is also a demonstration tool that market gardeners have a desire for sustainable development by integrating social, environmental and economic issues at the heart of the project.

ROLE OF VINCI CONSULTANTS

• Redevelop and develop neighborhoods in a compact way where local services and a mix of uses structure the environment in a harmonious and sustainable way
• Highlight the agricultural potential of Longueuil;
• Create structuring, multifunctional, adaptable and accessible poles where employment and services are dominant;
• Encourage local procurement and promote it to the community & Promote agriculture for citizens;
• Encourage businesses related to the agricultural sector to innovate, diversify and develop a distinctive signature;
• Supervise the experimental monitoring of the site’s retention and purification capacities;
• Integrate a socio-professional integration organization for the maintenance of PGOs.

VINCI CONSULTANTS worked in all phases of the project: pre-design, design, authorization requests, support in the selection of the contractor, site supervision, up to monitoring during the operation.
The project makes it possible to highlight innovations, potential for reproducibility and strong partnerships around the question of the integration of Optimal Rainwater Management Practices in urban development projects.

Thus, the project notably includes 7 Optimal Rainwater Management Practices via chain treatment.

This also made it possible to set up a multidisciplinary (work in close collaboration between civil engineering and urban planning) and multi-partner (collaboration with the City of Longueuil and a local organization) design process.

Emphasis was placed on monitoring the project during its operation and on achieving a balance between the different spheres of sustainable development (economic, environmental and social) via:
Recipient of a grant from the Green Municipal Fund and from the RBC Blue Water Leadership Fund, the project saw the implementation of new tools to support landowners and decision-makers in urban resilience to climate change through sustainable stormwater management.

Thus, educational tools, a method for maintaining structures and experimental follow-up on the chain treatment of BMPs are in progress and serve as a school for new projects while allowing the international influence of the approach.