Morena
April 29, 2024
Morena dam, located in San Diego, California, is a Rockfill dam completed in 1912 with a primary purpose of water supply. It stands at a height of 181 feet and has a maximum storage capacity of 50,206 acre-feet, serving the surrounding area with a surface area of 1,475 acres. The dam is situated on Cottonwood Creek, managed by the local government in Barrett Junction, and is regulated by the California Department of Water Resources, ensuring state permitting, inspection, and enforcement for its operation.
Despite its historical significance and essential role in water supply, Morena dam poses a high hazard potential with a poor condition assessment. The last inspection in February 2022 revealed the need for improvements to meet safety standards. Emergency action plans are in place, but their effectiveness and adherence to guidelines remain uncertain. With a risk management framework yet to be fully developed, there is a need for proactive measures to mitigate potential risks and ensure the dam's long-term resilience in the face of changing climate conditions.
For water resource and climate enthusiasts, Morena dam serves as a focal point for understanding the intersection of infrastructure, natural resources, and risk management. Its location in a high-risk area underscores the importance of proactive maintenance and modernization efforts to safeguard water supply and protect communities downstream. As climate change brings increased variability in precipitation patterns and heightened hydrological risks, the resilience of structures like Morena dam will be crucial for ensuring water security and disaster preparedness in the region.
| Year_Completed | 1912 |
| Dam_Height | 181 |
| River_Or_Stream | Cottonwood Cr |
| Dam_Length | 550 |
| Primary_Dam_Type | Rockfill |
| Surface_Area | 1475 |
| Hydraulic_Height | 167 |
| Drainage_Area | 114 |
| Nid_Storage | 50206 |
| Hazard_Potential | High |
| Nid_Height | 181 |
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