Upper Howell, also known as Howell Reservoir, is a public utility water supply located in Los Gatos, California. The dam, completed in 1878, stands at 36 feet high and holds a storage capacity of 243 acre-feet. Situated on Rundell Creek, the reservoir covers an area of 13 acres and serves as a critical source of water for the surrounding area. Managed by the California Department of Water Resources, Upper Howell is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and reliability.

With a significant hazard potential but a satisfactory condition assessment as of 2017, Upper Howell is a crucial piece of infrastructure that requires regular inspections and maintenance. The dam has a hydraulic height of 33 feet and a length of 640 feet, showcasing its importance in managing water resources in Santa Clara County. The reservoir plays a vital role in providing water supply for the region, reflecting its primary purpose and role as a public utility infrastructure.

As part of the Sacramento District, Upper Howell contributes to water management efforts in California, supporting the state's water supply needs. The dam's location, design, and storage capacity make it a key component in the region's water infrastructure, ensuring the availability of water for various purposes. Despite its age, Upper Howell continues to serve its purpose effectively, highlighting the importance of proper regulation and maintenance for sustainable water resource management in the face of changing climate conditions.