Granby #12 is a privately-owned irrigation dam located in Cedaredge, Colorado, along the Dirty George Creek. Completed in 1949, this Earth type dam stands at a height of 27 feet, with a hydraulic height of 28 feet and a structural height of 33 feet. With a storage capacity of 909 acre-feet, this dam primarily serves the purpose of irrigation, providing essential water resources for agricultural activities in the region. Despite its fair condition assessment and high hazard potential, Granby #12 continues to play a crucial role in water management and climate resilience efforts in Delta County.

The dam, which has a surface area of 49 acres and a maximum discharge capacity of 441 cubic feet per second, lacks a spillway and instead relies on slide and uncontrolled gates for water release. While the dam has not been modified in recent years, regular inspections and enforcement measures by the state regulatory agency ensure its continued safety and functionality. The risk assessment for Granby #12 indicates a high level of risk (2) due to its hazard potential, emphasizing the importance of effective risk management strategies in safeguarding the surrounding community and environment.

In the face of changing climatic conditions and increasing water-related challenges, Granby #12 serves as a critical infrastructure for sustainable water resource management in Colorado. With its historical significance and ongoing role in supporting agricultural activities, the dam underscores the importance of proactive monitoring, maintenance, and emergency preparedness measures to mitigate potential risks and ensure the long-term viability of water resources in the region.