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 226–250 of 1,962
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Thibodeaux La Plata County | 18 | — | Significant | Satisfactory |
| The Ranch Adams County | 27 | 1979 | Significant | Satisfactory |
| Theos Reservoir #1 Rio Blanco County | 14 | 1973 | Low | Satisfactory |
| Thatcher Pueblo County | 12 | 1971 | Low | Satisfactory |
| Terry Lake Larimer County | 40 | 1890 | High | Satisfactory |
| Terrace Conejos County | 183 | 1912 | High | Fair |
| Terminal La Plata County | 78 | 1982 | High | Fair |
| Terminal Broomfield County | 60 | 1995 | High | Satisfactory |
| Tepper No. 1 Jefferson County | 22 | 1912 | Low | Not Rated |
| Ten Mile Pond #3 Dam Summit County | 416 | — | High | Not Available |
| Teller No. 2 Boulder County | 12 | 1904 | Low | Fair |
| Teller Lake No. 5 - West Boulder County | 9 | 1911 | Low | Not Rated |
| Teller Lake No. 5 - East Boulder County | 12 | 1911 | Low | Not Rated |
| Teller Pueblo County | 85 | 1908 | High | Fair |
| Taylor Park Dam Gunnison County | 206 | 1937 | High | Not Available |
| Taylor Draw Rio Blanco County | 81 | 1984 | High | Satisfactory |
| Taylor La Plata County | 19 | 1971 | Low | Not Rated |
| Tatum Reservoir Delta County | 28 | 1959 | Low | Not Rated |
| Tarryall Ranch Reservoir Dam Park County | 40 | 1977 | Low | Not Rated |
| Tarryall Park County | 70 | 1929 | High | Unsatisfactory |
| Talbott Irrigation Adams County | 17 | 1912 | Low | Not Rated |
| Tagert Lake Pitkin County | 9 | 1930 | Low | Not Rated |
| Sylvan Lake Eagle County | 35 | 1947 | High | Satisfactory |
| Sylvan Grand County | 40 | 1910 | High | Fair |
| Swede Boulder County | 15 | 1930 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.