Delta Pond
Delta Pond is an earth dam located in Sonoma County, California, built in 1984. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Delta Pond
The primary purpose of Delta Pond 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 City Of Santa Rosa (local government). It impounds the Tr Russian Rv.
The dam stands 27 feet tall and stretches 11,000 feet across, creates a reservoir covering 94 acres, and has a maximum storage capacity of 1,950 acre-feet. Completed in 1984, the structure is 42 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 01/15/2025.
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Location
| State | California |
| County | Sonoma |
| River/Stream | Tr Russian Rv |
| Coordinates | 38.44940, -122.83350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 11,000 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 1,950 acre-ft |
| Max Storage | 1,950 acre-ft |
| Surface Area | 94 acres |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Santa Rosa |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/15/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01272 |
| Federal ID | CA01272 |
| More Info | State Dam Safety Program |