Anderson Cottonwood
Anderson Cottonwood is a buttress dam located in Shasta County, California, built in 1917. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Anderson Cottonwood
Anderson Cottonwood is a dam in Shasta, California. The dam is owned by Anderson Cottonwood Irrigation District (public utility). It impounds the Sacramento Rever.
The dam stands 24 feet tall and stretches 455 feet across, creates a reservoir covering 190 acres, has a maximum storage capacity of 1,240 acre-feet, and collects water from a drainage area of 6,860 square miles. Completed in 1917, 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 07/23/2025.
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Location
| State | California |
| County | Shasta |
| River/Stream | Sacramento Rever |
| Coordinates | 40.59220, -122.39440 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 455 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 1,240 acre-ft |
| Max Storage | 1,240 acre-ft |
| Surface Area | 190 acres |
| Drainage Area | 6,860 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Anderson Cottonwood Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/23/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00226 |
| Federal ID | CA00226 |
| More Info | State Dam Safety Program |