Water Control Infrastructure and Dike Repair and Maintenance - Big Creek National Wildlife Area

Ducks Unlimited Canada is proposing to undertake maintenance and repair activities to improve the dike infrastructure within the Big Creek National Wildlife Area, located in Port Rowan, Ontario. These dikes are crucial to controlling the water levels within the National Wildlife Area. They also help mitigate the risk of flooding and improve wildlife habitat. Proper functioning of this infrastructure is necessary to ensure the effective management of the area for wildlife, their habitats, federal infrastructure, and public visitor access.

Ducks Unlimited Canada will re-core the dikes using excavators and other heavy machinery to remove the centre of approximately 1.7km of the dikes. New sterile clay will be placed to re-core the dikes, making them stronger. Dike tops will be regraded, repaired and in some instances raised to increase safety and functionality.

The proposed work will be completed during the late fall and winter, when disturbance to migratory birds and other wildlife will be minimal. Exposed soil and excavated material will be re-graded, stabilized and/or re-seeded using appropriate native plants, soils, seed mix and seed application at the completion of construction. All work will take place above the high water line and sediment and erosion control will be used where necessary.


Latest update

January 23, 2023 – The authority issued its 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
2 Notice of Determination - January 16, 2023
1 Notice of Intent to Make a Determination - Start of Public Comment Period - November 15, 2022


Environment and Climate Change Canada, Canadian Wildlife Service
John Viengkone, Protected Areas Officer - Ontario
4905 Dufferin St.
Toronto, Ontario M3H 5T4
Telephone: 416-884-5148
Email: john.viengkone@ec.gc.ca

  • Location

    • Big Creek National Wildlife Area (Ontario)
  • Nature of Activity

    • Water Management
    • Maintenance activities (fences, walls)
  • Assessment Status

  • Start Date

  • Proponent

    Ducks Unlimited Canada
  • Authorities

    • Environment and Climate Change Canada
  • 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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