Dams in Sonoma County, California
64Total Dams
35High Hazard
13Significant
Dam Safety in Sonoma County, California
Sonoma County has 64 dams tracked in the National Inventory of Dams. Of these, 35 are classified as high hazard — meaning failure would probably cause loss of human life. Another 13 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Sonoma County is 60 years old. The most common purpose is water supply. The tallest dam is Warm Springs Dam at 356 ft.
Explore more: Oldest dams in California · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Warm Springs Dam | High | Not Available | 356 | Flood Risk Reduction | 1983 |
| Matanzas Creek | High | Satisfactory | 95 | Flood Risk Reduction | 1963 |
| Suttenfield | High | Fair | 76 | Water Supply | 1938 |
| Merlo | High | Satisfactory | 74 | Other | 1982 |
| Annadel No. 1 | High | Fair | 67 | Water Supply | 1956 |
| Shiloh Ranch | High | Satisfactory | 61 | Water Supply | 1991 |
| Mallacomes | High | Satisfactory | 57 | Water Supply | 1951 |
| Murray | High | Satisfactory | 55 | Water Supply | 1970 |
| Kellogg Ballpark | High | Satisfactory | 51 | Water Supply | 1962 |
| Foothill Regulating Park | High | Satisfactory | 51 | Water Supply | 1963 |
| Lagunita | High | Satisfactory | 49 | Water Supply | 1954 |
| The Hill Ranch | High | Satisfactory | 49 | Water Supply | 1955 |
| Foote #4 | High | Satisfactory | 47 | Water Supply | 1976 |
| Azalea | High | Satisfactory | 44 | Water Supply | 1955 |
| Axell | High | Satisfactory | 43 | Water Supply | 1952 |
| Dutcher Creek | High | Satisfactory | 43 | Water Supply | 1992 |
| Donovan | High | Satisfactory | 40 | Water Supply | 1953 |
| Fern Lake | High | Satisfactory | 40 | Water Supply | 1921 |
| Lake Helen | High | Poor | 39 | Water Supply | 1966 |
| Sleepy Holl No. 2 | High | Satisfactory | 39 | Water Supply | 1949 |
| Fountaingrove | High | Satisfactory | 38 | Water Supply | 1953 |
| Middle Fork Brush Creek | High | Satisfactory | 37 | Flood Risk Reduction | 1961 |
| Santa Rosa Creek Reservoir | High | Satisfactory | 37 | Flood Risk Reduction | 1963 |
| Cook No. 2 | High | Satisfactory | 35 | Water Supply | 1961 |
| Lake Ralphine | High | Satisfactory | 35 | Water Supply | 1882 |
| Lytton | High | Satisfactory | 34 | Water Supply | 1956 |
| Browns Lane | High | Fair | 32 | Water Supply | |
| Le | High | Satisfactory | 30 | Water Supply | 1959 |
| Meadow Lane | High | Satisfactory | 30 | Water Supply | 1979 |
| Norton No. 2 | High | Satisfactory | 28 | Water Supply | 1956 |
| Foote #3 | High | Satisfactory | 28 | Water Supply | 1970 |
| Piner Creek | High | Satisfactory | 28 | Flood Risk Reduction | 1962 |
| Airport Storage Pond | High | Satisfactory | 22 | Water Supply | 1985 |
| Foss Creek North Area | High | Satisfactory | 20 | Flood Risk Reduction | 1998 |
| Airport Storage Pond 2 | High | Satisfactory | 20 | Water Supply | 1989 |
| Richardson | Significant | Satisfactory | 65 | Water Supply | 1954 |
| Bosch No. 2 | Significant | Satisfactory | 55 | Water Supply | 1962 |
| Airport Reservoir D | Significant | Satisfactory | 45 | Water Supply | 2002 |
| Greeott | Significant | Satisfactory | 40 | Water Supply | 1951 |
| Buena Vista Winery | Significant | Satisfactory | 40 | Water Supply | 1971 |
| Dina Bob Lake | Significant | Satisfactory | 33 | Water Supply | 1955 |
| Budge | Significant | Satisfactory | 28 | Water Supply | 1964 |
| Delta Pond | Significant | Satisfactory | 27 | Water Supply | 1984 |
| Vineyard Subdivision | Significant | Satisfactory | 26 | Water Supply | 1962 |
| Lafranchi Creek | Significant | Satisfactory | 23 | Water Supply | 1982 |
| Lrey No. 1 | Significant | Satisfactory | 19 | Water Supply | 1954 |
| Svcsd Reclamation Pond 2 | Significant | Satisfactory | 19 | Water Supply | 1990 |
| Svcsd Reclamation Pond 1 | Significant | Satisfactory | 17 | Water Supply | 1990 |
| Coen C-3 | Low | Satisfactory | 97 | Water Supply | 1982 |
| Sea Ranch | Low | Satisfactory | 61 | Water Supply | 1996 |
| Dennis No. 2 | Low | Satisfactory | 60 | Water Supply | 1997 |
| Hillside Ranch | Low | Satisfactory | 60 | Water Supply | 1967 |
| King Ridge Road | Low | Fair | 52 | Irrigation | |
| Salinger | Low | Satisfactory | 46 | Water Supply | 1952 |
| Lawler | Low | Satisfactory | 40 | Water Supply | 1910 |
| Richardson | Low | Satisfactory | 40 | Water Supply | 1974 |
| Paradise Vineyards | Low | Satisfactory | 40 | Other | 2003 |
| Sonoma Hills | Low | Satisfactory | 38 | Water Supply | 1991 |
| Asti | Low | Satisfactory | 34 | Water Supply | 1955 |
| John Carl Warnecke | Low | Satisfactory | 32 | Water Supply | 1974 |
| Pinheiro | Low | Satisfactory | 26 | Other | 1967 |
| Healdsburg Recreation | Low | Fair | 15 | Water Supply | 1953 |
| Pond No. 2 | Low | Satisfactory | 12 | Water Supply | 1952 |
| Russian River No. 1 | Low | Poor | 10 | Water Supply | 1963 |