Bristol Head #1, also known as Lower Bristol Head or Lower Seepage, is a privately owned earth dam located in South Fork, Colorado. Built in 1921 for irrigation purposes, this dam stands at a height of 15 feet and has a storage capacity of 200 acre-feet. Situated on Seepage Creek with a drainage area of 4 square miles, the dam has a spillway width of 10 feet and a maximum discharge of 210 cubic feet per second.

Despite being classified as having a low hazard potential, Bristol Head #1 has been assessed as unsatisfactory in condition, with the last inspection conducted in November 2018. The dam's risk assessment is moderate, indicating a level 3 risk. With a history of state regulation and inspection, this structure plays a crucial role in supporting local irrigation activities. Its location in Mineral County highlights the importance of maintaining and monitoring water resources in the region to ensure the safety and sustainability of the surrounding ecosystem.

Water resource and climate enthusiasts interested in the intricate details of dam infrastructure and management will find Bristol Head #1 a fascinating case study. With its historical significance, engineering specifications, and risk assessment data, this dam serves as a reminder of the delicate balance between human development and environmental stewardship in water resource management. As climate change continues to impact water availability and quality, understanding and maintaining structures like Bristol Head #1 will be crucial for ensuring the resilience of our water systems in the face of evolving environmental challenges.