Upper Elder
Upper Elder is an earth dam located in Shasta County, California. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Upper Elder
The primary purpose of Upper Elder 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 Mark Henderson (private). It impounds the Tr Pit River.
The dam stands 26 feet tall and stretches 180 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 202 acre-feet, and collects water from a drainage area of 0 square miles.
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 06/24/2025.
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Location
| State | California |
| County | Shasta |
| River/Stream | Tr Pit River |
| Coordinates | 40.98410, -121.87140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 180 ft |
Storage & Hydraulics
| NID Storage | 202 acre-ft |
| Max Storage | 202 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mark Henderson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/24/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01338 |
| Federal ID | CA01338 |
| More Info | State Dam Safety Program |