Blunn, also known as Arvada Reservoir, is a captivating water resource nestled in the heart of Colorado's Jefferson County. Owned by the local government, this reservoir serves as a vital source of water supply for the region while also offering recreational opportunities to its visitors. Constructed in 1979 by ECI, INC, Blunn stands as a testament to the state's commitment to water management and conservation.

With a dam height of 68 feet and a storage capacity of 7,839 acre-feet, Blunn plays a critical role in managing the flow of Ralston Creek. The reservoir's uncontrolled spillway, slide gates, and stone core structure ensure its stability and efficiency. Despite being categorized as a high hazard potential dam, Blunn has been assessed as satisfactory in condition, with regular inspections and maintenance to ensure its safety and functionality.

Surrounded by stunning natural landscapes and offering various recreational activities, Blunn is not only a water resource but also a place of leisure and enjoyment for the community. As climate change continues to impact water resources, Blunn's presence serves as a beacon of resilience and sustainable water management practices in the face of evolving environmental challenges.