Coon Camp
Coon Camp is an earth dam located in Lassen County, California, built in 1900. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Coon Camp
The primary purpose of Coon Camp 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 Mapes Ranch, Inc. (private). It impounds the Tr Horse Lake.
The dam stands 23 feet tall and stretches 1,175 feet across, creates a reservoir covering 79 acres, has a maximum storage capacity of 548 acre-feet, and collects water from a drainage area of 18 square miles. Completed in 1900, the structure is over a century 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 06/19/2024.
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Location
| State | California |
| County | Lassen |
| River/Stream | Tr Horse Lake |
| Coordinates | 40.71630, -120.48700 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 1,175 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 548 acre-ft |
| Max Storage | 548 acre-ft |
| Surface Area | 79 acres |
| Drainage Area | 18 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mapes Ranch, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/19/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00522 |
| Federal ID | CA00522 |
| More Info | State Dam Safety Program |