Cloverswale
Cloverswale is an earth dam located in Modoc County, California, built in 1973. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Cloverswale
The primary purpose of Cloverswale 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 Lazy Spade, Llc (private). It impounds the Tr Witcher Crk.
The dam stands 21 feet tall and stretches 490 feet across, creates a reservoir covering 462 acres, has a maximum storage capacity of 4,620 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1973, 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 05/06/2025.
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Location
| State | California |
| County | Modoc |
| River/Stream | Tr Witcher Crk |
| Coordinates | 41.53150, -120.83670 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 490 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 4,620 acre-ft |
| Max Storage | 4,620 acre-ft |
| Surface Area | 462 acres |
| Drainage Area | 4 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Lazy Spade, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/06/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01513 |
| Federal ID | CA01513 |
| More Info | State Dam Safety Program |