Colorado Dams
1,962 dams tracked by the National Inventory of Dams
Total Dams
1,962
High Hazard
451
23%
Poor / Unsatisfactory
119
Average Age
84 yrs
Hazard Classification
High451 (23.0%)
Significant294 (15.0%)
Low1,217 (62.0%)
Condition Assessment
Satisfactory691 (35.2%)
Fair533 (27.2%)
Poor / Unsatisfactory119 (6.1%)
Not Rated619 (31.5%)
Federal
141
State
80
Local
416
Private
1,221
Tallest Dams
- Morrow Point Dam468 ft
- Ten Mile Pond #3 Dam416 ft
- Blue Mesa Dam390 ft
- Gross 350 ft
- Ridgway Dam330 ft
High Hazard Dams
- Morrow Point DamHigh
- Ten Mile Pond #3 DamHigh
- Blue Mesa DamHigh
- Gross High
- Ridgway DamHigh
Poor Condition Dams
- SanchezUnsatisfactory
- Narraguinnep - Main DamUnsatisfactory
- Stillwater #1Unsatisfactory
- MiramonteUnsatisfactory
- Spring CreekUnsatisfactory
All Dams in Colorado
Showing 251–275 of 1,962
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sutphin Prowers County | 12 | 1991 | Low | Fair |
| Supply Basin Garfield County | 13 | 1911 | Low | Not Rated |
| Superior Boulder County | 83 | 1994 | High | Satisfactory |
| Sunset Lake Boulder County | 15 | — | Low | Fair |
| Sunny Slope Larimer County | 16 | — | Significant | Fair |
| Sunnyside Huerfano County | 24 | 1901 | Low | Not Rated |
| Sunny Brook Prowers County | 20 | 1915 | Low | Not Rated |
| Sunny Acres Adams County | 33 | 1963 | Low | Fair |
| Summitville Tailings Rio Grande County | 83 | 1968 | Low | Not Rated |
| Summit - South Dam Montezuma County | 10 | 1937 | High | Unsatisfactory |
| Summit - Main Dam Montezuma County | 42 | 1905 | High | Unsatisfactory |
| Sullivan Weld County | 11 | 1905 | Low | Unsatisfactory |
| Sullivan Moffat County | 39 | 1951 | Low | Fair |
| Sugar Loaf Dike Lake County | 12 | 1968 | High | Not Available |
| Sueno Las Animas County | 20 | 1989 | Low | Not Rated |
| Stybr #2 Weld County | 16 | 1920 | Low | Not Rated |
| Strontia Springs Douglas County | 299 | 1982 | High | Satisfactory |
| Stratton Teller County | 30 | 1919 | High | Fair |
| Stouffer #2 Adams County | 10 | 1906 | Low | Not Rated |
| Stouffer #1 Adams County | 12 | 1906 | Low | Satisfactory |
| St. Marys Lake Clear Creek County | 9 | 1889 | Significant | Not Rated |
| St. Joe Tailings Boulder County | 42 | 1936 | Low | Not Rated |
| Stillwater #1 Garfield County | 89 | 1939 | High | Unsatisfactory |
| Stillwater Douglas County | 27 | 1999 | Low | Not Rated |
| St. George Delta County | 21 | 1951 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.