Thomas is a privately owned dam located in Pagosa Springs, Colorado, along the San Juan River. Built in 1966 for irrigation purposes, this structure stands at a height of 17 feet and spans 1700 feet in length. With a storage capacity of 93 acre-feet, Thomas serves as a crucial water resource for the surrounding area, storing and distributing water for agricultural use.

Despite its low hazard potential and not being rated for condition assessment, Thomas poses a high risk due to its age and lack of recent inspections. The dam lacks a spillway, which could potentially lead to flooding in the event of overflow. While the last inspection took place in 1988, the structure has not been assessed for condition since then, raising concerns about its long-term stability and safety.

Climate and water resource enthusiasts should monitor the situation at Thomas closely, advocating for regular inspections and maintenance to ensure the dam's safety and resilience in the face of changing climate conditions. As a critical piece of infrastructure for irrigation in the area, Thomas plays a vital role in water management and conservation efforts, highlighting the importance of responsible stewardship and proactive risk management strategies in the face of climate uncertainties.