Harrison Street Dam, located in Riverside, California, is a crucial infrastructure owned by the local government for flood risk reduction along Harrison Creek. Built in 1954, this Earth-type dam stands at a height of 50 feet with a hydraulic height of 44.5 feet, serving a drainage area of 2.03 square miles. With a storage capacity of 208 acre-feet and covering an area of 14 acres, this dam plays a vital role in managing water flow and mitigating potential flooding in the region.

Managed by the California Department of Water Resources (DWR) for dam safety, Harrison Street Dam has a hazard potential rated as high but is currently assessed to be in satisfactory condition. Regular inspections, with the last one conducted in January 2020, ensure its operational integrity. Despite its age, the dam continues to serve its primary purpose effectively, highlighting the importance of ongoing monitoring and maintenance to safeguard surrounding communities and water resources.

With a spillway width and discharge capacity not specified, Harrison Street Dam remains a critical piece of infrastructure under state regulation and enforcement. As a notable flood risk reduction measure, this dam's role in the region's water resource management is underscored by its design, construction, and ongoing operation. As climate change impacts increase the frequency and intensity of extreme weather events, the importance of structures like Harrison Street Dam in protecting against floods and ensuring water security only grows in significance.