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 1601–1625 of 1,962
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sheriff Rio Blanco County | 72 | 1955 | High | Unsatisfactory |
| Sherwood Larimer County | 14 | 1906 | Significant | Satisfactory |
| Shirkey,Pearl Det. #1 Elbert County | 30 | 1969 | Low | Not Rated |
| Short La Plata County | 16 | 1940 | Low | Not Rated |
| Shoshone Diversion Dam Garfield County | 32 | 1909 | High | Not Rated |
| Siena Broomfield County | 41 | 2004 | High | Satisfactory |
| Sierra Blanco #1 Huerfano County | 37 | 1906 | Low | Not Rated |
| Signal #1 Adams County | 22 | 1890 | Significant | Unsatisfactory |
| Signal #2 Adams County | 12 | 1890 | Low | Satisfactory |
| Silver Dollar Clear Creek County | 35 | — | Low | Not Rated |
| Silver Jack Dam Gunnison County | 173 | 1971 | High | Not Available |
| Silver Lake Boulder County | 70 | 1887 | High | Fair |
| Silver Lakes #2 Conejos County | 19 | 1910 | Low | Not Rated |
| Silver Spruce #2 Boulder County | 18 | 1958 | Low | Satisfactory |
| Simon #1 Rio Blanco County | 27 | 1917 | Low | Satisfactory |
| Six & Fifty Detention Dam Mesa County | 20 | 1957 | Low | Not Rated |
| Six Mile - Main Boulder County | 52 | 1892 | High | Satisfactory |
| Six Mile - Northwest Boulder County | 14 | 1892 | Low | Fair |
| Skaguay Teller County | 79 | 1901 | Significant | Fair |
| Skeel Denver County | 40 | 1900 | High | Unsatisfactory |
| Skim Milk Delta County | 16 | 1904 | Low | Fair |
| Skinny Fish Reservoir Garfield County | 14 | 1966 | Significant | Not Rated |
| Skyscraper Boulder County | 24 | 1940 | Low | Fair |
| Slab Canyon Larimer County | 26 | 1937 | Low | Satisfactory |
| Slack and Weiss Jackson County | 22 | 1890 | Low | Unsatisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.