Rivière du Cap Rouge

Cap-Rouge river
The river passing under the Cap-Rouge trestle
Location of the mouth of the river in Quebec City
Native nameRivière du Cap-Rouge (French)
Location
CountryCanada
ProvinceQuebec
RegionCapitale-Nationale
CitiesQuebec City, Saint-Augustin-de-Desmaures
Physical characteristics
SourceForest stream
  locationSaint-Augustin-de-Desmaures
  elevation134 m
MouthSaint Lawrence River
  location
Cap-Rouge
  coordinates
46°44′55″N 71°20′35″W / 46.7486111°N 71.3430556°W / 46.7486111; -71.3430556
  elevation
4 m
Length23.9 km (14.9 mi)
Basin size82 km2 (32 sq mi)
Basin features
River systemSaint Lawrence River
BridgesCap-Rouge trestle

The Cap-Rouge river (French: Rivière du Cap Rouge) is a river flowing on the north shore of the Saint-Laurent river at the height of the Sainte-Foy–Sillery–Cap-Rouge borough of Quebec City and in the city of Saint-Augustin-de-Desmaures, both cities in the administrative region of Capitale-Nationale, in the province of Quebec, Canada.

The catchment area of the Cap Rouge river extends into:

The Cap Rouge river valley is mainly served by the route 367 (route de Fossambault) which is perpendicular to the Saint-Laurent river, the "chemin du rang des Mines" (on the south shore from the top), route 138 (boulevard Wilfrid-Hamel), boulevard Auclair, avenue Le Gendre, boulevard de la Chaudière, rue Provencher and rue Saint-Félix.

The surface of the Cap Rouge river (except the rapids areas) is generally frozen from the beginning of December to the end of March; safe circulation on the ice is generally done from the end of December to the beginning of March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.