Bayley Reservoir
Bayley Reservoir is an earth dam located in Modoc County, California, built in 1954. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Bayley Reservoir
The primary purpose of Bayley Reservoir 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 Alturas Ranches, Llc (private). It impounds the Crooks Canyon.
The dam stands 20 feet tall and stretches 710 feet across, creates a reservoir covering 328 acres, has a maximum storage capacity of 2,390 acre-feet, and collects water from a drainage area of 33 square miles. Completed in 1954, the structure is well into its service life at over 50 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. The most recent inspection on record was 06/02/2025.
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Location
| State | California |
| County | Modoc |
| River/Stream | Crooks Canyon |
| Coordinates | 41.26290, -120.62730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 710 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 2,390 acre-ft |
| Max Storage | 2,390 acre-ft |
| Surface Area | 328 acres |
| Drainage Area | 33 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Alturas Ranches, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/02/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00920 |
| Federal ID | CA00920 |
| More Info | State Dam Safety Program |