Utah Dams
867 dams tracked by the National Inventory of Dams
Total Dams
867
High Hazard
273
31.5%
Poor / Unsatisfactory
17
Average Age
66 yrs
Hazard Classification
High273 (31.5%)
Significant326 (37.6%)
Low268 (30.9%)
Condition Assessment
Satisfactory125 (14.4%)
Fair102 (11.8%)
Poor / Unsatisfactory17 (2.0%)
Not Rated623 (71.9%)
Federal
82
State
27
Local
124
Private
632
Tallest Dams
- Flaming Gorge Dam502 ft
- Jordanelle Dam391 ft
- Upper Stillwater Dam292 ft
- Soldier Creek Dam272 ft
- Barrick Mercur Reservation Cnyn Tailings270 ft
High Hazard Dams
Poor Condition Dams
- Mountain DellPoor
- Birch Creek No. 2Poor
- Bottle Hollow - South DamPoor
- Lake Mary-PhoebePoor
- MidviewPoor
All Dams in Utah
Showing 326–350 of 867
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Intermountain Power Bottom Ash Basins Millard County | 46 | 1983 | Low | Not Rated |
| Intermountain Power Evaporation Ponds Millard County | 25 | 1983 | Low | Not Rated |
| Intermountain Power Settling Basin Millard County | 14 | 1983 | Low | Not Rated |
| Intermountain Power Storage Basin Millard County | 39 | 1983 | Low | Not Rated |
| Intermountain Power Wastewater Millard County | 20 | 1983 | Low | Not Rated |
| Iron Springs San Juan County | 18 | 1921 | Low | Not Rated |
| Irontown Dam Iron County | 24 | 1973 | Significant | Not Rated |
| Island Lake (Summit - Burnt Fork) Summit County | 7 | 1928 | Low | Not Rated |
| Island Lake (Summit - Provo R.) Summit County | 9 | 1940 | Low | Not Rated |
| Ivins Bench Washington County | 47 | 1943 | High | Satisfactory |
| Ivins Red Mountain - 1 Washington County | 15 | 1977 | High | Satisfactory |
| Ivins Red Mountain - 2 Washington County | 12 | 1977 | High | Satisfactory |
| Ivins Red Mountain - 3 Washington County | 13 | 1977 | High | Satisfactory |
| Ivins Red Mountain - 4 Washington County | 13 | 1977 | High | Satisfactory |
| Ivins Red Mountain - 5 Washington County | 12 | 1977 | High | Satisfactory |
| Ivins Red Mountain - 6 Washington County | 11 | 1977 | High | Satisfactory |
| Jackson Flat Reservoir Kane County | 45 | 2012 | High | Satisfactory |
| Jacobs Valley Garfield County | 13 | 1911 | Significant | Not Rated |
| Jennings Duchesne County | 9 | 1938 | Low | Not Rated |
| Jeremy Ranch Summit County | 44 | — | Significant | Not Rated |
| Joes Valley Emery County | 192 | 1966 | High | Fair |
| Johnson Sevier County | 31 | 1910 | High | Fair |
| Johnson, Clement H. Garfield County | 17 | — | Low | Not Rated |
| Johnson Livestock Oak Ranch L.C. Sevier County | 40 | — | Low | Not Rated |
| Johnson Storage Garfield County | 16 | 1973 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.