Fairmount Park, also known as Lake Evans, is a vital water resource located in Riverside, California. Managed by the local government, this park serves as a key water supply for the region, with a dam completed in 1923 to regulate water flow from the Santa Ana River. The dam stands at 12 feet high and has a storage capacity of 200 acre-feet, providing crucial water storage for the area.

In addition to its primary purpose of water supply, Fairmount Park also offers recreational opportunities for the community, with a surface area of 40 acres and a drainage area of 22 square miles. The park boasts a high hazard potential due to its location, but recent inspections have deemed its condition as satisfactory. The dam is regularly monitored and inspected by state agencies to ensure its safety and functionality for both water supply and recreational purposes.

With its rich history dating back to the early 20th century, Fairmount Park continues to play a critical role in water management and conservation efforts in Riverside. As a key water resource in the region, the park contributes to the sustainability of the local ecosystem while providing residents with opportunities for outdoor recreation and relaxation. Its strategic location along the Santa Ana River highlights the importance of responsible dam maintenance and management to ensure the safety and well-being of the community.