Beck
Beck is an earth dam located in San Diego County, California, built in 1983. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Beck
The primary purpose of Beck is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Rainbow Municipal Water District (public utility). It impounds the Offstream.
The dam stands 95 feet tall and stretches 3,500 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 625 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1983, the structure is 43 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/29/2025.
At 95 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | California |
| County | San Diego |
| River/Stream | Offstream |
| Coordinates | 33.35560, -117.17010 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 95 ft |
| Dam Height | 95 ft |
| Dam Length | 3,500 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 625 acre-ft |
| Max Storage | 625 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Rainbow Municipal Water District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/29/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01551 |
| Federal ID | CA01551 |
| More Info | State Dam Safety Program |