The Alouette Reservoir and River are monitored by BC Hydro and Environment Canada due to the impacts of the Alouette Dam. The reservoir is monitored for water level, by BC Hydro. The water level is kept at approximately 122.0m throughout the year. This is to monitoring the movement of water through the diversion tunnel into the Stave Watershed or through the dam’s gate. In some cases, water is emptied over the overspill wall of the dam, this can include extreme weather cases such as rain and snow melt. These flows happen when the reservoir level reaches over 125.0m. The water flows through the diversion tunnel for the majority of the year, feeding the Stave Watershed system including the Stave Falls power station and the Ruskin Dam power station. Current water levels of the reservoir can be found at BC Hydro’s Alouette Lake page.


                      Alouette Dam from the downstream perspective.


The Alouette River are monitored at the 232nd Street bridge in Maple Ridge. This station is monitors the height of the river as well as its flow (speed that the water is moving at) twenty-four hours a day. For the current Alouette River height and flow numbers, you can visit Environment Canada’s information page here.


                                                  Alouette River 2021.