Benchmark Lake, also known as Nottingham Lake, is a picturesque water resource nestled in the heart of Avon, Colorado. Managed by the local government, this reservoir serves as a key hub for recreational activities and water supply purposes in the region. Built in 1977, the earth dam stands at a height of 19 feet, with a storage capacity of 201 acre-feet and a surface area of 19 acres.

With a spillway type of "Uncontrolled" and a hazard potential rated as "High," Benchmark Lake is closely monitored and regulated by the Colorado Department of Water Resources. Despite its fair condition assessment as of September 2020, the dam presents a moderate risk level due to its proximity to the Eagle River. The dam's emergency action plan (EAP) was last revised in 2014, highlighting the importance of ongoing preparedness and risk management measures for potential incidents.

Water and climate enthusiasts will be drawn to Benchmark Lake not only for its scenic beauty but also for the dynamic interplay between human interventions and natural forces that shape its ecosystem. As a vital water source for the local community and a haven for outdoor enthusiasts, this reservoir embodies the delicate balance between water management, public safety, and environmental conservation in the face of changing climate patterns and emerging risks.