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Located in Beverly Hills, California, Lower Franklin, also known as Franklin Canyon Reservoir, is a vital water storage facility managed by the local government.
Completed in 1922, this Earth-type dam stands at 103 feet high and has a storage capacity of 920 acre-feet, serving primarily for flood risk reduction along the Franklin Canyon stream. With a surface area of 22 acres and a drainage area of 1.12 square miles, Lower Franklin plays a crucial role in safeguarding the surrounding area from potential flooding events.
Maintained by the California Department of Water Resources (DWR), Lower Franklin is regulated, permitted, and inspected regularly to ensure its structural integrity and overall safety. The dam has a high hazard potential, but its condition assessment as of September 2017 indicates satisfactory performance. In case of emergencies, an Emergency Action Plan (EAP) is in place, last revised in March 2021. With its historical significance and essential role in flood risk management, Lower Franklin stands as a testament to effective water resource management in the region.
Despite its age, Lower Franklin continues to fulfill its primary purpose of flood risk reduction, showcasing the importance of maintaining infrastructure for climate resilience. With its strategic location in the heart of Los Angeles County, this reservoir serves as a critical water storage facility for the local community, reflecting a commitment to sustainable water management practices. As climate change challenges intensify, Lower Franklin stands as a testament to the ongoing efforts to safeguard water resources and mitigate potential risks for future generations.
Year Completed |
1922 |
Dam Length |
500 |
Dam Height |
103 |
River Or Stream |
Franklin Canyon |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
91.8 |
Drainage Area |
1.12 |
Nid Storage |
920 |
Hazard Potential |
High |
Nid Height |
103 |
| Location | Reservations | Toilets |
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Musch Hike-In Camp
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Musch Ranch Hike-In
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Dockweiler Beach RV
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Orlando
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Gould Mesa
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Oakwilde
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West Fork - Headwaters (Se 1/4, Ne 1/4, Sec 14, T2N, R12W) To Cogswell Reservoir (Ne 1/4, Sw 1/4, Sec 24, T2N, R9W
Gaging Station Below Spillway Of Cogswell Dam (Ne 1/4, Se 1/4, Sec 19, T2N, R10W) To Confluence With Nf San Gabriel River (Sw 1/4.Sw 1/4, Sec 15, T2N, R9W)
Headwaters In The Santa Monica Mountains To Mouth At Pacific Ocean
Site Of St Francis Dam Disaster To Seco Canyon At The Nf Boundary
Cooper Canyon- Near State Highway 2 (Sw 1/4, Ne 1/4, Sec 16, T3N, R10W To Confluence With Little Rock Creek
Mainstream - Confluence With South Fork Little Rock Creek To Little Rock Creek Reservoir