Lower Stehly is a private dam located in Valley Center, California, along Tr Keys Creek. This Earth-type dam stands at 60 feet high with a hydraulic height of 52.9 feet, serving primarily for irrigation and water supply purposes. With a storage capacity of 287 acre-feet, it plays a crucial role in the water management system of the region.

Managed by the California Department of Water Resources and under state regulation, Lower Stehly has a high hazard potential but is deemed to be in satisfactory condition as of the last assessment in September 2017. The dam undergoes regular inspections, with the most recent one conducted in February 2021. Despite its age, the dam continues to play a vital role in the local water supply infrastructure.

Enthusiasts of water resources and climate will find Lower Stehly to be an intriguing structure, contributing to the water supply and irrigation needs of San Diego County. As a privately owned dam with state oversight, it showcases the importance of infrastructure maintenance and monitoring in ensuring the safety and sustainability of water resources in the region.