B.L. Swift is a privately owned earth dam located in Weld County, Colorado, specifically in the city of Gilcrest. Completed in 1890, this irrigation dam stands at a height of 12 feet with a length of 820 feet, providing a storage capacity of 105 acre-feet. The primary purpose of B.L. Swift is to support irrigation activities in the region, utilizing water from the St Vrain Creek-TR.

Despite its age, B.L. Swift has a low hazard potential and is currently not rated for its condition. The last inspection of the dam took place in January 1989, with a recommended inspection frequency of six years. The risk assessment for the dam indicates a high risk level (2), suggesting the need for potential risk management measures to ensure the safety and reliability of the structure for continued irrigation operations.

For water resource and climate enthusiasts, B.L. Swift presents a historical glimpse into Colorado's irrigation infrastructure, showcasing the importance of dams in supporting agriculture in the region. With its unique design and purpose, this earth dam serves as a vital component of the local water management system, highlighting the intersection of human ingenuity and natural resource utilization in the face of evolving climate challenges.