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 1051–1075 of 1,217
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Stillwater Douglas County | 27 | 1999 | Low | Not Rated |
| St. Joe Tailings Boulder County | 42 | 1936 | Low | Not Rated |
| Stouffer #1 Adams County | 12 | 1906 | Low | Satisfactory |
| Stouffer #2 Adams County | 10 | 1906 | Low | Not Rated |
| Stybr #2 Weld County | 16 | 1920 | Low | Not Rated |
| Sueno Las Animas County | 20 | 1989 | Low | Not Rated |
| Sullivan Weld County | 11 | 1905 | Low | Unsatisfactory |
| Sullivan Moffat County | 39 | 1951 | Low | Fair |
| Summitville Tailings Rio Grande County | 83 | 1968 | Low | Not Rated |
| Sunny Acres Adams County | 33 | 1963 | Low | Fair |
| Sunny Brook Prowers County | 20 | 1915 | Low | Not Rated |
| Sunnyside Huerfano County | 24 | 1901 | Low | Not Rated |
| Sunset Lake Boulder County | 15 | — | Low | Fair |
| Supply Basin Garfield County | 13 | 1911 | Low | Not Rated |
| Sutphin Prowers County | 12 | 1991 | Low | Fair |
| Swede Boulder County | 15 | 1930 | Low | Satisfactory |
| Tagert Lake Pitkin County | 9 | 1930 | Low | Not Rated |
| Talbott Irrigation Adams County | 17 | 1912 | Low | Not Rated |
| Tarryall Ranch Reservoir Dam Park County | 40 | 1977 | Low | Not Rated |
| Tatum Reservoir Delta County | 28 | 1959 | Low | Not Rated |
| Taylor La Plata County | 19 | 1971 | Low | Not Rated |
| Teller Lake No. 5 - East Boulder County | 12 | 1911 | Low | Not Rated |
| Teller Lake No. 5 - West Boulder County | 9 | 1911 | Low | Not Rated |
| Teller No. 2 Boulder County | 12 | 1904 | Low | Fair |
| Tepper No. 1 Jefferson County | 22 | 1912 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.