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 1326–1350 of 1,962
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Narraguinnep - Main Dam Montezuma County | 114 | 1908 | High | Unsatisfactory |
| Nast Reservoir Pitkin County | 10 | 1966 | Low | Not Rated |
| Native Lake Archuleta County | 26 | 1970 | Low | Satisfactory |
| Needle Creek Saguache County | 90 | 1961 | Low | Not Rated |
| Nee-Noshe Kiowa County | 25 | 1896 | Significant | Satisfactory |
| Neff Lake Weld County | 10 | — | Low | Not Rated |
| Nelson Douglas County | 30 | 1953 | Low | Not Rated |
| New Cache Agricultural Pond Weld County | 10 | 2016 | Low | Not Rated |
| New Thomas Weld County | 57 | 1976 | Significant | Satisfactory |
| Newton Gulch Routt County | 41 | 1907 | Low | Satisfactory |
| Nichols El Paso County | 57 | 1929 | Low | Not Rated |
| Nienhuser Lincoln County | 14 | 1924 | Low | Satisfactory |
| Nissen #2 Broomfield County | 9 | 1974 | High | Satisfactory |
| Niver Creek Detention Adams County | 42 | 1978 | High | Satisfactory |
| N. Mills Clarifying Dam Pueblo County | 33 | 1975 | Low | Satisfactory |
| Noble Routt County | 11 | 1909 | Low | Not Rated |
| Noecker Eagle County | 32 | 1903 | High | Fair |
| Nofstger Routt County | 16 | 1908 | Low | Satisfactory |
| No Name 1-1 #1 Adams County | 19 | 1971 | Low | Not Rated |
| Non Potable Reservoir Dam 1 El Paso County | 50 | 1961 | Significant | Not Available |
| Non Potable Reservoir Dam 2 El Paso County | 70 | 1961 | High | Not Available |
| Non Potable Reservoir Dam 3 El Paso County | 50 | 1961 | High | Not Available |
| Non Potable Reservoir Dam 4 El Paso County | 80 | 1958 | Low | Not Available |
| Noonen Arapahoe County | 42 | 1907 | Low | Satisfactory |
| North Catamount Teller County | 210 | 1959 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.