Bearspaw Dam is a major infrastructure facility on the Bow River northwest of Calgary that plays a crucial role in the city's water supply system. Built in 1954, the dam creates a reservoir used for drinking water treatment and helps regulate water flow. The Bearspaw Water Treatment Plant, one of Calgary's two major treatment facilities, processes water from this reservoir to serve approximately half the city's population. The dam and associated infrastructure represent critical municipal assets requiring ongoing maintenance and protection. Water security is a significant concern for Calgary as the city grows and climate change affects river flows.