Lagerman, located in Boulder, Colorado, is a significant water resource managed by a public utility. This Earth dam, completed in 1878, serves multiple purposes including fish and wildlife pond, recreation, and water supply. With a height of 34 feet and a capacity of 1832 acre-feet, Lagerman has a surface area of 94 acres and a drainage area of 1 square mile.

The dam overlooks Dry Creek-Tr and is regulated by the Colorado Department of Water Resources. With a spillway width of 42 feet and a high hazard potential, Lagerman poses moderate risk, although its condition assessment is deemed satisfactory as of the last inspection in October 2020. Recognized as a crucial habitat for fish and wildlife, the reservoir plays a vital role in maintaining ecological balance in the region.

Longmont residents, as well as visitors, enjoy the recreational opportunities offered by Lagerman while also benefiting from its water supply function. As climate change impacts water resources, Lagerman stands as a testament to the importance of sustainable management practices and the need to ensure the safety and integrity of vital infrastructure for both human and environmental well-being.