Construction of Coastal and River Flood Protection Works to retain recurrent flooding in Tsulquate 4 on Gwa?sala-?Nakwaxda?xw Territory Project
This is a non-designated project on federal lands or outside Canada. The listed authorities are responsible for the project assessment.
The proposed project consists of four main components to protect the Tsulquate 4 reserve on Gwa'sala-‘Nakwaxda'xw Territory from flooding:
1. A sea dike with a flat engineered beach along the foreshore slope connected to a river dike along the Lower Tsulquate River;
2. The area behind the new dikes would be raised to the flood construction levels;
3. Existing houses and services will need to be raised or replaced;
4. The bridge river crossing at the Lower Tsulquate River would need to be raised to protect against bridge wash out from flooding with new bridge approaches.
The Gwa?sala-?Nakwaxda?xw community near Port Hardy BC is subject to recurring coastal and river flooding. Floods in the past have flooded portions of the community causing extensive damage to residential areas. With the onset of sea level rise the frequency of this low lying community is expected to increase. Flood mapping to define the consequences of the hazard have been completed along with mitigation options. The most cost effective and sustainable option of an Engineered Beach and River Dike has been selected and a preliminary design prepared. This work would include replacement of the sole bridge and raising lands behind the new dike and rebuilding the lower community at a higher flood construction level.
Disclaimer
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.
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Key documents
Document Number | Document Title | File | Date |
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1 | Notice of Intent- Construction of Coastal and River Flood Protection Works to retain recurrent flooding in Tsulquate 4 on Gwa?sala-?Nakwaxda?xw Territory Project | - | February 13, 2023 |
Contacts
Infrastructure CanadaMoumen Kamnaksh, Environmental Review Officer
180 Kent Street
Ottawa, Ontario K1P 0B6
Telephone: 613-292-8531
Email: moumen.kamnaksh@infc.gc.ca
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Location
- Construction of Coastal and River Flood Protection Works to retain recurrent flooding in Tsulquate 4 on Gwa?sala-?Nakwaxda?xw Territory Project (British Columbia)
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Nature of Activity
- Water Management
- Bridges
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Assessment Status
In progress -
Start Date
2023-02-13 -
Proponent
Kawatsi Economic Development Limited Partnership -
Authorities
- Infrastructure Canada
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Assessment Type
Project on federal lands -
Reference Number
84326
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