The avalanche defence on the Trans-Canada Highway at Rogers Pass
The Trans-Canada Highway is to be constructed over Rogers Pass in Glacier National Park, B.C. About twenty-four miles of the highway which includes the Pass is threatened by avalanches. In 1953 an avalanche survey was organized to obtain the information required for the design and construction of th...
| Main Author: | |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1960
|
| Subjects: | |
| Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=4c4b02e1-0838-4e0c-905a-ec2d2933b5ee https://nrc-publications.canada.ca/eng/view/object/?id=4c4b02e1-0838-4e0c-905a-ec2d2933b5ee https://nrc-publications.canada.ca/fra/voir/objet/?id=4c4b02e1-0838-4e0c-905a-ec2d2933b5ee |
| Summary: | The Trans-Canada Highway is to be constructed over Rogers Pass in Glacier National Park, B.C. About twenty-four miles of the highway which includes the Pass is threatened by avalanches. In 1953 an avalanche survey was organized to obtain the information required for the design and construction of the highway defence works and for the future avalanche warning service. Avalanches reaching the proposed highway route were surveyed and recorded. For each avalanche site a defence was chosen according to the size and frequency of the avalanche. Snowsheds will be used for protection against the large and frequent avalanches. Earth mounds and dams will be constructed at the sites of smaller avalanches. No protection was planned for those avalanche sites that threaten the highway only once in every three to five years. La Route transcanadienne devra franchir de Col Rogers dans le parc national Glacier (C.-B.). Or, la route qui traverse le col est menacée par des avalanches sur environ vingt- quatre milles. En 1953, on a organisé une enquête sur les avalanches en vue d'obtenir les renseignements nécessaires à la conception et à la construction des ouvrages de protection routière et d'établir le futur service d' avertissement concernant les avalanches. On a donc relevé et consigné les avalanches qui menacent la zone de la route projetée. Pour chaque site d'avalanche, on a choisi un ouvrage de protection en fonction de l'importance et de la fréquence des avalanches. On utilisera des paravalanches contre les avalanches puissantes et fréquentes. On construira des buttes et des barrages aux sites menacés par des avalanches plus petites. On n'a cependant prévu aucune protection pour les sites d'avalanche qui ne menacent la route qu'une fois par période de trois à cinq ans. Peer reviewed: No NRC publication: Yes |
|---|