Construction Impacts

Most of the construction will take place within existing boundaries of the plant. However, a new outfall will be built from the plant to the river by tunneling. Activities associated with this work include:

  • Building demolition
  • Delivering, excavating and removing soils and other materials
  • Tunnel shaft excavation
  • Shaft and diffuser construction from barges in river

Work Hours

Work will generally occur between Mondays to Friday from 7:00 a.m. - 7:00 p.m. However, there may be times when crews will need to work longer hours or on weekends to complete certain sections of work.


All work will comply with the Corporation of Delta’s noise bylaws or granted variances. Where practical, crews will attempt to reduce noise impacts. Generators may be required to run overnight.


Access to all businesses will be maintained. Construction of the diffuser system and riser shaft will take place outside of the river navigation channel to avoid impacts to river users.

Traffic Impacts

During construction additional truck traffic will be present on surrounding roads as materials are removed and delivered to the work site.

Our Commitment to You

Metro Vancouver is committed to minimizing the impacts of this project on the surrounding community, and to working closely with key stakeholders to listen to concerns and interests throughout the project. As part of our commitment Metro Vancouver will:

  • Follow a rigorous permitting and approvals process at the federal and provincial levels
  • Work with businesses, First Nations and government agencies before construction begins to identify potential project impacts and determine possible solutions
  • Develop and implement traffic management plans to ensure traffic flow and property access are not significantly interrupted
  • Develop and implement a river work plan to ensure construction does not significantly interfere with marine traffic and activities
  • Provide a Community Liaison Officer to respond to questions and concerns
  • Provide regular project updates via newsletter, web updates, and traffic advisories

Contact Us

  • Annacis Island WWTP Project Contact


    ​​604-432-6200 Monday to Friday from 8:00 a.m. to 4:30 p.m.