28Total Dams
6High Hazard
6Significant
Dam Safety in San Juan County, Utah
San Juan County has 28 dams tracked in the National Inventory of Dams. Of these, 6 are classified as high hazard — meaning failure would probably cause loss of human life. Another 6 carry a significant hazard classification.
The average dam in San Juan County is 65 years old. The most common purpose is irrigation. The tallest dam is Recapture Creek at 142 ft.
Explore more: Oldest dams in Utah · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Recapture Creek | High | Satisfactory | 142 | Irrigation | 1984 |
| Lloyd`s Lake (monticello) | High | Satisfactory | 133 | Irrigation | 1984 |
| Blanding City No. 4 | High | Satisfactory | 100 | Water Supply | 1965 |
| Kens Lake | High | Satisfactory | 95 | Irrigation | 1981 |
| Starvation Canyon | High | Fair | 60 | Water Supply | 1985 |
| Blanding City No. 3 | High | Satisfactory | 47 | Irrigation | 1961 |
| Dry Wash No. 2 | Significant | Not assessed | 68 | Irrigation | 1962 |
| Rattlesnake Ranch No.2 (lower) | Significant | Not assessed | 43 | Irrigation | 1972 |
| Gordon | Significant | Not assessed | 34 | Irrigation | 1930 |
| Camp Jackson | Significant | Not assessed | 25 | Water Supply | 1939 |
| Monticello Lake | Significant | Not assessed | 25 | Recreation | 1954 |
| Keller | Significant | Not assessed | 18 | Irrigation | 1915 |
| Dugout | Low | Not assessed | 49 | Irrigation | 1967 |
| Adams Ranch Dam | Low | Not assessed | 40 | Irrigation | |
| Monticello City No. 1 | Low | Not assessed | 30 | Irrigation | 1975 |
| Cell 4 a and B | Low | Not assessed | 30 | Tailings | |
| Provancha | Low | Not assessed | 27 | Irrigation | 1971 |
| Bailey (upper) | Low | Not assessed | 26 | Irrigation | |
| Lisbon Valley Mining Co. LLC | Low | Not assessed | 26 | Water Supply | |
| Foy | Low | Not assessed | 18 | Recreation | 1960 |
| Iron Springs | Low | Not assessed | 18 | Irrigation | 1921 |
| Barry No. 2 | Low | Not assessed | 18 | Irrigation | 1953 |
| Monticello Millsite Pond #4 | Low | Not assessed | 14 | Tailings | |
| Blanding Wastewater Winter Storage | Low | Not assessed | 14 | Other | 1983 |
| Bankhead (lower) | Low | Not assessed | 13 | Irrigation | 1930 |
| Moab Salt Potash Pond Dam 2g | Low | Not assessed | 12 | Other | 1970 |
| Moab Salt Potash Pond Dam 2n | Low | Not assessed | 12 | Other | 1970 |
| Moab Salt Potash Pond Dam 3b | Low | Not assessed | 12 | Other | 1970 |