Russian River No. 1 is a buttress dam located in Sonoma County, California, built in 1963. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 365 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Russian River No. 1
The primary purpose of Russian River No. 1 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 Russian River Recreation and Parks District (public utility). It impounds the Russian River.
The dam stands 10 feet tall and stretches 365 feet across, creates a reservoir covering 43 acres, and has a maximum storage capacity of 315 acre-feet. Completed in 1963, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/25/2024.
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Location
| State | California |
| County | Sonoma |
| River/Stream | Russian River |
| Coordinates | 38.48320, -123.01140 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 365 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 315 acre-ft |
| Max Storage | 315 acre-ft |
| Surface Area | 43 acres |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Russian River Recreation and Parks District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/25/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00849 |
| Federal ID | CA00849 |
| More Info | State Dam Safety Program |