A dry canal

A dry canal (HM1KSF)

Location: Coteau-du-Lac, Québec J0P 1B0 Vaudreuil-Soulanges
Country: Canada
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N 45° 17.28', W 74° 10.531'

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Un canal à sec

English:
Located at the confluence of the Delisle and St. Lawrence rivers, the point of land at Coteau-du-Lac was originally surrounded by water.
However, with the construction of hydroelectric dams and the St. Lawrence Seaway, the water level of the St. Lawrence has been lowered by 2.5 m. As a result, water no longer surrounds the point or enters the canal.
The basin at the entrance to the canal right in front of you looks very different from the way it did when boats from Montréal used the canal to bypass the rapids at Coteau-du-Lac.
Basin at the Entrance to the Canal
This illustration shows the basin at the lower entrance to the canal in the early 19th century. Boats travelling from Montréal to the Great Lakes entered the canal from its lower end, passed through the locks and then continued their journey upstream.
This painting by Captain Henry Rudyerd, a royal engineer in the British army, shows the point at Coteau-du-Lac in 1788. It depicts the lower entrance to the canal and several of the buildings that existed on the site at that time.

French:
Localisée au confluent de la rivière Delisle et du fleuve Saint-Laurent, la pointe de Coteau-du-lac était à l'origine entourée d'eau.
Cependant, depuis la construction de barrages hydro-électriques et la canalisation de la voie maritime du Saint-Laurent, le niveau des eaux du fleuve a subi une baisse de 2.5 mètres. Voilà pourquoi les eaux ne contournent plus la pointe du site et ne pénètrent plus a l'intérieur du canal.
Le bassin d'entree du canal situé juste en face de vous, n'offre donc plus l'aspect qu'il avait à l'époque où les bateaux en provenance de Montréal, empruntaient la voie canalisée pour éviter les rapides de Coteau-du-lac.

Le bassin d'entree du canal
La scène ci-contre évoque le bassin d'entrée d'aval au début du 19ᵉ siècle. Les bateaux en provenance de Montréal s'engageaient dans le canal par cette entrée, franchissaient les écluses puis poursuivaient leur route vers les Grands-Lacs.
Cette scène représente la pointe de Coteau-du-lac en 1788. On peut observer l'entrée d'aval du canal ainsi que divers bâtiments construits sur le site à cette époque. Cette iconographie fut réalisée par le capitaine Henry Rudyerd des ingénieurs royaux de l'armée britannique.
Details
HM NumberHM1KSF
Tags
Placed ByParks Canada / Parcs Canada
Marker ConditionNo reports yet
Date Added Thursday, May 28th, 2015 at 2:02pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18T E 564655 N 5015274
Decimal Degrees45.28800000, -74.17551667
Degrees and Decimal MinutesN 45° 17.28', W 74° 10.531'
Degrees, Minutes and Seconds45° 17' 16.8" N, 74° 10' 31.86" W
Driving DirectionsGoogle Maps
Closest Postal AddressAt or near 18 Rue Wilson, Coteau-du-Lac Québec J0P 1B0, CA
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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