Sea Island Conservation Area Dike Upgrade

Vancouver Airport Authority is proposing to upgrade the dike system at the Sea Island Conservation Area in Richmond, B.C. The proposed project will raise the existing dike by approximately 1m to improve flood protection for the Vancouver International Airport and related infrastructure on Sea Island.


The Proposed Project

The project consists of upgrading a 2.5 km long section of dike on the northern portion of Sea Island between McDonald Road and Ferguson Road. Most of the land in the project footprint is within the Sea Island Conservation Area which is administered by Environment and Climate Change Canada via the Canadian Wildlife Service. Small portions of land within or adjacent to the project footprint are owned or administered by the Musqueam First Nation (Sea Island IR No. 3), the Vancouver Fraser Port Authority and Canadian Forest Products. Project funding has been provided by Transport Canada. Activities required for the project include clearing vegetation, placement of dike fill material, relocation of an existing drainage ditch and site restoration.


Latest update

February 21, 2023 – The Vancouver Airport Authority, Transport Canada and Environment and Climate Change Canada have issued the Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
1 Notice of Intent to Make a Determination - Start of Public Comment Period - September 21, 2022


Vancouver Airport Authority
Community Relations
PO Box 44638 YVR
Domestic Terminal RPO
Richmond, British Columbia V7B 1W2

  • Location

    • Richmond (British Columbia)
  • Nature of Activity

    • Airport and Airfields
    • Water Management
  • Assessment Status

  • Start Date

  • Proponent

    Vancouver Airport Authority
  • Authorities

    • Environment and Climate Change Canada
    • Transport Canada
    • Vancouver Airport Authority
  • Assessment Type

    Project on federal lands
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.


Nearby assessments

...within 200 kilometres
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