Iverson
Iverson is an earth dam located in Lassen County, California, built in 1968. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Iverson
The primary purpose of Iverson 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 Mcarthur 1989 Trust (private). It impounds the Tr Juniper Cr.
The dam stands 45 feet tall and stretches 1,854 feet across, creates a reservoir covering 102 acres, has a maximum storage capacity of 1,800 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1968, 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 05/07/2025.
At 45 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | California |
| County | Lassen |
| River/Stream | Tr Juniper Cr |
| Coordinates | 41.07910, -121.05520 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 1,854 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 1,800 acre-ft |
| Max Storage | 1,800 acre-ft |
| Surface Area | 102 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mcarthur 1989 Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/07/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00946 |
| Federal ID | CA00946 |
| More Info | State Dam Safety Program |