Westerdoll Lake, located in Larimer County, Colorado, is a private water resource managed primarily for irrigation purposes. This Earth-type dam stands at a height of 11 feet and was completed in 1900. The lake has a storage capacity of 311 acre-feet, with a normal storage level of 229 acre-feet, covering a surface area of 38 acres. With a low hazard potential and satisfactory condition assessment, Westerdoll Lake is considered to have a moderate risk level.

The dam has undergone modifications in 2005 to enhance its hydraulic and structural features, ensuring its continued functionality and safety. With a spillway width of 12 feet and a maximum discharge capacity of 875 cubic feet per second, Westerdoll Lake is equipped to manage flood risks effectively. Despite being privately owned, the state of Colorado regulates and inspects the dam regularly to uphold safety standards and enforce necessary maintenance protocols.

Located near the Big Thompson River, Westerdoll Lake is a key component in the local irrigation infrastructure, contributing to agricultural activities in the region. With its stone core and soil foundation, the dam exemplifies a blend of traditional and modern engineering practices. Water resource and climate enthusiasts would find Westerdoll Lake an intriguing case study in sustainable water management and infrastructure development within the context of changing climate patterns and evolving regulatory frameworks.