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 376–400 of 691
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Joe Blake Water Treatment Plant Forebay Douglas County | 27 | 1986 | Significant | Satisfactory |
| Joder Boulder County | 46 | 1962 | Low | Satisfactory |
| Jerry Creek Dike 1 Mesa County | 40 | 1978 | High | Satisfactory |
| Jerry Creek #2 Mesa County | 150 | 1978 | High | Satisfactory |
| Jerry Creek #1 Mesa County | 57 | 1964 | High | Satisfactory |
| Jefferson Lake Park County | 33 | 1951 | High | Satisfactory |
| Jasper Boulder County | 18 | 1988 | High | Satisfactory |
| James Tingle Park County | 26 | 2009 | High | Satisfactory |
| Jackson Lake Morgan County | 39 | 1900 | High | Satisfactory |
| Ivanhoe Pitkin County | 17 | 1928 | Significant | Satisfactory |
| Ish #3 (Main Dam) Larimer County | 48 | 1905 | High | Satisfactory |
| Ish #3 (East Dam) Boulder County | 12 | — | Significant | Satisfactory |
| Ireland #5 Weld County | 20 | 1976 | Low | Satisfactory |
| Indian Creek Larimer County | 46 | 1948 | High | Satisfactory |
| Independent Boulder County | 12 | 1903 | Low | Satisfactory |
| Idaho Springs Clear Creek County | 33 | 1906 | High | Satisfactory |
| Hunters Overlook Reservoir Weld County | 19 | 2018 | High | Satisfactory |
| Humphreys - Spillway Dam Mineral County | 34 | 1926 | High | Satisfactory |
| Humphreys Mineral County | 85 | 1923 | High | Satisfactory |
| Hourglass Larimer County | 46 | 1898 | High | Satisfactory |
| Hot Springs Creek Gunnison County | 60 | 1956 | Low | Satisfactory |
| Horseshoe Lake (South Dam) Larimer County | 27 | 1905 | Significant | Satisfactory |
| Horseshoe Lake (East Dam) Larimer County | 37 | 1905 | Significant | Satisfactory |
| Horse Creek Weld County | 39 | 1910 | High | Satisfactory |
| Hopkins Garfield County | 34 | 2020 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.