Bigstone Cree Nation Flood Recovery Program: Culvert 166D-27 Replacement

In 2021, the Nation began the detailed design of the flood mitigation recommendations for Reserve 166D. The scope of mandatory enhancements needed to mitigate flood damage to approximately 1.5km of road on Cattleman Drive (between Ayouschias Land and Simon Drive) are as follows:
- Earthworks (clearing and grubbing, topsoil stripping to stockpile, gravel salvage, common excavation, waste excavation, borrow excavation)
- Roadworks (subgrade preparation, geotextile, gravel supply and placement)
- Pipe Culvert Installation (2 culverts - 1200mm diameter each), creek isolation and de-isolation (if required), culvert removal (approaches and centerline), longer length culvert supply and installation (approaches and centerline), concrete ends (to increase durability for beaver maintenance), rip rap supply and installation.
- Miscellaneous: topsoil supply and placement, hydroseeding, fending removal and replacement due to the widening of the road toes of slope as the road elevation is being raised.

Even with the upsized culverts, the roadway in this area is predicted to fail during a 1:100-year storm event and needs to be built up. Completing a portion of this section is not an option as the road will still be compromised. This Project intersects two surface water features, one at crossing 166D-08 and one at crossing 166D-27. The expected lifespan of the project is indefinite, maintenance will occur as required.

Latest update

End of Public Comment Period

March 4, 2022 – The public period on the project is closed. Indigenous Services Canada is considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
1 Public Comment Period on Intent to Make a Determination - February 2, 2022


Indigenous Services Canada
Stacey LeBlanc, Sr. Environment Officer
630 Canada Place, 9700 Jasper Ave
Edmonton, Alberta T5J 4G2
Telephone: 780-782-8350

  • Location

    • Bigstone Cree Nation (Alberta)
  • Nature of Activity

    • Highways and Roads
    • Other, not otherwise specified
  • Assessment Status

  • Start Date

  • Proponent

    Bigstone Cree Nation
  • Authorities

    • Indigenous Services 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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