{"id":8900,"date":"2024-02-03T15:51:49","date_gmt":"2024-02-03T20:51:49","guid":{"rendered":"https:\/\/portagepower.com\/une-technologie-du-debut-du-siecle-encore-utilisee-aux-chutes-de-la-chaudiere\/"},"modified":"2025-10-08T10:50:28","modified_gmt":"2025-10-08T15:50:28","slug":"une-technologie-du-debut-du-siecle-encore-utilisee-aux-chutes-de-la-chaudiere","status":"publish","type":"post","link":"https:\/\/portagepower.com\/fr\/une-technologie-du-debut-du-siecle-encore-utilisee-aux-chutes-de-la-chaudiere\/","title":{"rendered":"Une technologie du d\u00e9but du si\u00e8cle encore utilis\u00e9e aux chutes de la Chaudi\u00e8re"},"content":{"rendered":"

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\n\tDepuis plus de 100 ans, le barrage-vo\u00fbte constitue un \u00e9l\u00e9ment essentiel des activit\u00e9s de production d\u2019hydro\u00e9lectricit\u00e9 aux chutes de la Chaudi\u00e8re. Cet ouvrage construit entre 1907 et 1909 a \u00e9t\u00e9 mis en service en 1910. Depuis 109 ans, il r\u00e9gule le d\u00e9bit d\u2019eau de la rivi\u00e8re des Outaouais et stabilise le niveau d\u2019eau en amont entre Ottawa et Arnprior.<\/span>\n\t<\/h4>\n<\/blockquote>[vc_empty_space height=\u00a0\u00bb40px\u00a0\u00bb][vc_column_text]<\/p>\n
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Tout au long des ann\u00e9es 1800, avant la construction du barrage-vo\u00fbte, les propri\u00e9taires de diff\u00e9rentes entreprises \u00e9tablies sur les rives et dans les \u00eeles autour des chutes am\u00e9nagent plusieurs digues et petits barrages. Ces petits ouvrages leur permettent d\u2019acheminer l\u2019eau vers leurs \u00e9quipements et leurs turbines, surtout en automne et en hiver, alors que le courant est beaucoup plus faible qu\u2019au printemps. Bien entendu, ces ouvrages sont \u00e0 l\u2019origine de nombreux diff\u00e9rends entre leurs utilisateurs. Avec l\u2019av\u00e8nement de l\u2019\u00e9lectricit\u00e9, la concurrence devient encore plus f\u00e9roce. En 1905, des propri\u00e9taires et des locataires unissent leurs efforts pour construire un barrage unique au b\u00e9n\u00e9fice de tous. Puis, en 1907, les gouvernements de l\u2019Ontario et du Qu\u00e9bec concluent une entente en vertu de laquelle ils se partagent en parts \u00e9gales les droits du potentiel hydro\u00e9lectrique du barrage de la Chaudi\u00e8re, la production d\u2019\u00e9lectricit\u00e9 de l\u2019ouvrage ainsi que son co\u00fbt, son entretien et son exploitation. Le barrage-vo\u00fbte de la Chaudi\u00e8re devient ainsi la premi\u00e8re installation hydro\u00e9lectrique sur la rivi\u00e8re des Outaouais. Comme la fili\u00e8re hydro\u00e9lectrique repr\u00e9sente aujourd\u2019hui 61 % de la production d\u2019\u00e9lectricit\u00e9 au Canada, la rivi\u00e8re des Outaouais et le barrage-vo\u00fbte aux chutes de la Chaudi\u00e8re<\/a> occupent une place pr\u00e9pond\u00e9rante dans l\u2019histoire. La rivi\u00e8re des Outaouais est l\u2019une des trois rivi\u00e8res qui jouent un r\u00f4le crucial \u00e0 l\u2019\u00e9chelle nationale dans les premiers stades du d\u00e9veloppement de l\u2019hydro\u00e9lectricit\u00e9<\/a> au Canada.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Comme nous l\u2019avons mentionn\u00e9, l\u2019entente initiale de 1907 pr\u00e9voyait le partage entre l\u2019Ontario et le Qu\u00e9bec non seulement des droits relatifs \u00e0 l\u2019eau, mais aussi de l\u2019entretien et de l\u2019exploitation du barrage. Ainsi, au moment de sa mise en service, les deux gouvernements ont des op\u00e9rateurs charg\u00e9s de surveiller l\u2019ouvrage. Tout d\u2019abord r\u00e9partie \u00e9galement entre les deux provinces, la participation fluctue au fil des ans, au gr\u00e9 des diverses ventes et acquisitions. En 2016, alors qu\u2019elle d\u00e9tient une participation de 67 % dans le barrage-vo\u00fbte, Hydro Ottawa annonce qu\u2019elle a conclu avec Hydro-Qu\u00e9bec un contrat d\u2019achat et de vente portant sur la participation restante de 33 % dans le barrage-vo\u00fbte. Cet ouvrage sert \u00e0 r\u00e9guler le d\u00e9bit d\u2019eau et non pas \u00e0 cr\u00e9er un r\u00e9servoir. La quantit\u00e9 d\u2019eau qui se d\u00e9verse par-dessus les billots est dict\u00e9e par le d\u00e9bit de la rivi\u00e8re. Elle est nulle en p\u00e9riode d\u2019\u00e9tiage, mais peut atteindre 5 500 m\u00e8tres cubes par seconde au printemps. Comme il s\u2019agit d\u2019un ouvrage r\u00e9gulateur, qui ne retient pas l\u2019eau, la construction du barrage-vo\u00fbte n\u2019a gu\u00e8re modifi\u00e9 la rive des lacs en amont.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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D\u2019une longueur de 400 m\u00e8tres, le barrage forme entre deux des centrales hydro\u00e9lectriques un arc dont la forme rappelle celle des chutes. Les premiers explorateurs fran\u00e7ais ont donn\u00e9 aux chutes le nom de \u00ab Chaudi\u00e8re \u00bb, qui signifiait \u00ab bouilloire \u00bb en ancien fran\u00e7ais et \u00e9tait une traduction de leur nom en langue anishinaabe, soit \u00ab asticou \u00bb. Le barrage-vo\u00fbte comporte 50 ouvertures munies de rainures retenant de gros billots \u00e9quarris. Pour stabiliser autant que possible le niveau d\u2019eau en amont, les op\u00e9rateurs posent ou enl\u00e8vent des billots dans ces ouvertures en utilisant trois treuils \u00e9lectriques plac\u00e9s sur la dalle sup\u00e9rieure. Cette m\u00e9thode est utilis\u00e9e depuis la mise en service de l\u2019ouvrage en 1910. Le barrage-vo\u00fbte est sous surveillance constante et dot\u00e9 en personnel en tout temps depuis le d\u00e9but, ce qui repr\u00e9sente pr\u00e8s de 94 000 heures d\u2019exploitation continue! Pour des raisons de s\u00e9curit\u00e9, le public n\u2019a pas acc\u00e8s \u00e0 l\u2019ouvrage. Toutefois, le nouveau parc am\u00e9nag\u00e9 aux chutes de la Chaudi\u00e8re<\/a> permet \u00e0 tous d\u2019observer la beaut\u00e9 et la puissance de la rivi\u00e8re des Outaouais lorsque ses eaux traversent ce barrage-vo\u00fbte historique.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Depuis plus de 100 ans, le barrage-vo\u00fbte constitue un \u00e9l\u00e9ment essentiel des activit\u00e9s de production d\u2019hydro\u00e9lectricit\u00e9 aux chutes de la Chaudi\u00e8re. Cet ouvrage construit entre 1907 et 1909 a \u00e9t\u00e9 mis en service en 1910. Depuis 109 ans, il r\u00e9gule le d\u00e9bit d\u2019eau de la rivi\u00e8re des Outaouais et stabilise le niveau d\u2019eau en amont entre Ottawa et Arnprior.<\/p>\n","protected":false},"author":3,"featured_media":10668,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[165,171,197,199],"tags":[167,178,179],"class_list":["post-8900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogue","category-generer-lhistoire","category-hydroelectricite","category-region-de-la-capitale-nationale","tag-chaudiere-falls-fr","tag-innovation-fr","tag-technology-fr"],"yoast_head":"\nUne technologie du d\u00e9but du si\u00e8cle | Portage \u00c9nergie<\/title>\n<meta name=\"description\" content=\"La rivi\u00e8re des Outaouais a jou\u00e9 un r\u00f4le crucial \u00e0 l\u2019\u00e9chelle nationale dans les premiers stades du d\u00e9veloppement de 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