Cold Springs Reservoir #1
Cold Springs Reservoir #1 is an earth dam located in Lassen County, California. It carries a Low hazard potential classification and has a fair condition assessment.
About Cold Springs Reservoir #1
Cold Springs Reservoir #1 is a dam in Lassen, California. The dam is owned by R.c. Roberts Ranches, Llc (private). It impounds the Cold Spring Creek.
The dam stands 17 feet tall and stretches 300 feet across, creates a reservoir covering 640 acres, and has a maximum storage capacity of 2,815 acre-feet.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 08/26/2025.
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Location
| State | California |
| County | Lassen |
| River/Stream | Cold Spring Creek |
| Coordinates | 40.95890, -120.21860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 300 ft |
Storage & Hydraulics
| NID Storage | 2,815 acre-ft |
| Max Storage | 2,815 acre-ft |
| Surface Area | 640 acres |
Ownership & Safety
| Owner | R.C. Roberts Ranches, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/26/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01488 |
| Federal ID | CA01488 |
| More Info | State Dam Safety Program |