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 126–150 of 294
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Griggs La Plata County | 13 | 1999 | Significant | Fair |
| Harris Park Estates #1 Park County | 24 | 1955 | Significant | Satisfactory |
| Harwood'S Storage Reservoir Jefferson County | 36 | 1955 | Significant | Satisfactory |
| Henderson Lake La Plata County | 33 | 1967 | Significant | Not Rated |
| Hertha Larimer County | 32 | 1958 | Significant | Satisfactory |
| Hiawatha Larimer County | 14 | 1888 | Significant | Satisfactory |
| Highland #1 Weld County | 17 | 1879 | Significant | Satisfactory |
| Highland #2 (North) Boulder County | 41 | 1881 | Significant | Satisfactory |
| Highland #2 (South) Boulder County | 41 | 1881 | Significant | Satisfactory |
| Highland #3 Weld County | 21 | 1881 | Significant | Satisfactory |
| Holbrook Otero County | 25 | 1890 | Significant | Satisfactory |
| Hopkins Garfield County | 34 | 2020 | Significant | Satisfactory |
| Horse Creek Otero County | 30 | 1900 | Significant | Fair |
| Horseshoe Lake (East Dam) Larimer County | 37 | 1905 | Significant | Satisfactory |
| Horseshoe Lake (South Dam) Larimer County | 27 | 1905 | Significant | Satisfactory |
| Hughes Garfield County | 19 | 1935 | Significant | Fair |
| Ish #3 (East Dam) Boulder County | 12 | — | Significant | Satisfactory |
| Island Lake Delta County | 23 | 1954 | Significant | Fair |
| Ivanhoe Pitkin County | 17 | 1928 | Significant | Satisfactory |
| Joe Blake Water Treatment Plant Forebay Douglas County | 27 | 1986 | Significant | Satisfactory |
| J. O. Hill Douglas County | 44 | 1964 | Significant | Satisfactory |
| Johnston Jefferson County | 17 | 1974 | Significant | Satisfactory |
| Jones Grand County | 39 | 1937 | Significant | Fair |
| Jones #1 Grand County | 27 | 1879 | Significant | Satisfactory |
| Jumbo Mesa Creek 5 Mesa County | 19 | 1963 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.