Spruce Lake #1 (Upper) in Colorado, nestled in Mineral County, is a privately owned earth dam completed in 1926 for irrigation purposes along the South Fork Rio Grande. With a height of 19 feet and a storage capacity of 166 acre-feet, this structure serves as a vital resource for the surrounding area. The dam's condition is assessed as fair, with a low hazard potential, making it a reliable asset for water storage and management.

Despite its age, Spruce Lake #1 (Upper) continues to play a crucial role in sustaining fish and wildlife populations in the region. With a surface area of 10 acres and a normal storage capacity of 111 acre-feet, this reservoir supports a variety of ecological habitats. The dam's inspection frequency of every 6 years ensures that it is well-maintained and in compliance with regulatory standards, underscoring its importance in maintaining water resources and environmental balance.

While the risk assessment for Spruce Lake #1 (Upper) indicates a high potential for adverse events, the dam's low hazard level and fair condition suggest that it remains a reliable and safe structure. With a dedicated agency overseeing its operation, inspection, and enforcement, this earth dam stands as a testament to effective water resource management in Colorado. For water resource and climate enthusiasts, Spruce Lake #1 (Upper) offers a fascinating glimpse into the intersection of environmental conservation and infrastructure development.