Neff Lake, located in Weld County, Colorado, is a privately owned irrigation reservoir along the Cache La Poudre River. This Earth dam structure stands at 10 feet tall and stretches 818 feet in length, providing a storage capacity of 300 acre-feet for irrigation purposes. With a surface area of 45 acres and a drainage area of 42 square miles, Neff Lake plays a crucial role in supporting agricultural activities in the region.

Although last inspected in 1991 and deemed to have a low hazard potential, Neff Lake is considered to have a high risk level, signaling the need for continued monitoring and risk management measures. While the dam's condition assessment is currently not rated, the reservoir's emergency action plan status and risk assessment are also unclear. Despite these uncertainties, Neff Lake remains a significant water resource in the area, contributing to the agricultural landscape and water management efforts along the Cache La Poudre River.

As a key component of the region's water infrastructure, Neff Lake serves as a vital resource for irrigation and supports the local agricultural community. With its location in a high-risk area, it is imperative for stakeholders and regulatory agencies to prioritize the safety and maintenance of this reservoir to ensure its continued functionality and resilience in the face of potential climate challenges.