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Contribution: Disaster Mitigation and Adaptation Fund

Government of Nunavut | Gouvernement du Nunavut

$21,823,550.00

Arviat - Air Terminal Building

FY 2024-25 · 2025-03-21

Summary
The Hamlet of Arviat, Nunavut is situated on continuous permafrost and is highly susceptible to permafrost degradation due to global climate change, which threatens the infrastructure in northern Indigenous communities. The Arviat Air Terminal Building (ATB), which provides essential services to the aerodrome in this fly-in only community, is currently in poor condition and deteriorating as a result of permafrost degradation. As the ATB was initially built for permafrost ground conditions, in the last 30 years, the building has experienced permafrost thawing and subsequent ground shifting which has enhanced the deterioration of the structure’s foundation. The project seeks to construct a new ATB to mitigate against the impacts of the permafrost-related foundation issues experienced by the existing ATB. The new ATB will aim to use a hybrid active (mechanical) or passive thermosyphon system in the foundation to accommodate the sub-surface changes over the lifespan of the building. Thermosyphon systems are heat transfer devices which draws heat from underground and radiates it outwards. In addition, to reduce the risk of ponding underneath and around the new facility, a site drainage system will be installed, and the surrounding area will be graded.
Program
Disaster Mitigation and Adaptation FundDisaster Mitigation and Adaptation Fund (linked with high confidence)
Location
Iqaluit, City of | Iqaluit, Ville d', Nunavut, Canada
Recipient Type
Government
Type
Contribution
Source
Proactive Disclosure - Grants and Contributions

As published

Additional Information
Multi-year award for fiscal years 2024-25 to 2032-33.
Additional Information (French)
Contribution pluriannuelle pour les exercices financiers 2024-25 à 2032-33.
Agreement End Date
2033-03-31
Agreement Start Date
2025-03-21
Agreement Title
Arviat - Air Terminal Building
Agreement Title (French)
Aérogare d'Arviat
Agreement Type
Contribution
Agreement Value
$21,823,550.00
Amendment Number
0
Description
The Hamlet of Arviat, Nunavut is situated on continuous permafrost and is highly susceptible to permafrost degradation due to global climate change, which threatens the infrastructure in northern Indigenous communities. The Arviat Air Terminal Building (ATB), which provides essential services to the aerodrome in this fly-in only community, is currently in poor condition and deteriorating as a result of permafrost degradation. As the ATB was initially built for permafrost ground conditions, in the last 30 years, the building has experienced permafrost thawing and subsequent ground shifting which has enhanced the deterioration of the structure’s foundation. The project seeks to construct a new ATB to mitigate against the impacts of the permafrost-related foundation issues experienced by the existing ATB. The new ATB will aim to use a hybrid active (mechanical) or passive thermosyphon system in the foundation to accommodate the sub-surface changes over the lifespan of the building. Thermosyphon systems are heat transfer devices which draws heat from underground and radiates it outwards. In addition, to reduce the risk of ponding underneath and around the new facility, a site drainage system will be installed, and the surrounding area will be graded.
Description (French)
Le hameau d'Arviat, au Nunavut, est situé sur un pergélisol continu et est très sensible à la dégradation du pergélisol due au changement climatique mondial, qui menace l'infrastructure des communautés indigènes du Nord . L'aérogare d'Arviat (ATB), qui fournit des services essentiels à l'aérodrome de cette communauté exclusivement accessible par avion, est actuellement en mauvais état et se détériore en raison de la dégradation du pergélisol. L'ATB a été initialement construit pour des conditions de sol permafrost , mais au cours des 30 dernières années, le bâtiment a subi le dégel du permafrost et le déplacement du sol qui s'en est suivi, ce qui a accentué la détérioration des fondations de la structure. Le projet vise à construire un nouvel ATB pour atténuer les impacts des problèmes de fondation liés au pergélisol rencontrés par l'ATB existant. Le nouvel ATB visera à utiliser un système hybride de thermosiphon actif (mécanique) ou passif dans les fondations pour s'adapter aux changements de la subsurface pendant la durée de vie du bâtiment. Les systèmes de thermosiphon sont des dispositifs de transfert de chaleur qui tirent la chaleur du sous-sol et la diffusent vers l'extérieur. En outre, pour réduire le risque de formation de mares sous et autour de la nouvelle installation, un système de drainage du site sera installé et la zone environnante sera nivelée.
Organization Code
infc
Organization
Department of Housing, Infrastructure and Communities | Ministère du Logement, de l’Infrastructure et des Collectivités
Program Name
Disaster Mitigation and Adaptation Fund
Program Name (French)
Fonds d'atténuation et d'adaptation en matière de catastrophe
Recipient City
Iqaluit, City of | Iqaluit, Ville d'
Recipient Country
CA
Recipient Legal Name
Government of Nunavut | Gouvernement du Nunavut
Recipient Province or Territory
NU
Reference Number
278-2024-2025-Q4-00019
Government of Nunavut | Gouvernement du Nunavut - $21… | Canada Spends