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 251–275 of 451
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Marcot Park Delta County | 39 | 1956 | High | Fair |
| Mariano Larimer County | 30 | 1889 | High | Satisfactory |
| Marshall Lake Boulder County | 101 | 1908 | High | Satisfactory |
| Marston Lake - East Dam Denver County | 17 | 1899 | High | Satisfactory |
| Marston Lake - North Dam Denver County | 30 | 1899 | High | Satisfactory |
| Marston Lake - Northwest Dike Denver County | 18 | 1899 | High | Satisfactory |
| Marston Lake - South Dam Denver County | 33 | 1899 | High | Satisfactory |
| Martin Lake Huerfano County | 29 | 1910 | High | Satisfactory |
| Marys Lake Dike 2 Larimer County | 35 | 1949 | High | Not Available |
| Mason Teller County | 73 | 1903 | High | Satisfactory |
| Mayflower Pond # 5 Summit County | 237 | — | High | Not Available |
| Mccall Boulder County | 14 | 1909 | High | Satisfactory |
| Mckay Lake - East Adams County | 25 | 1900 | High | Satisfactory |
| Mckay Lake - South Broomfield County | 19 | 1900 | High | Satisfactory |
| Mc Lellan Arapahoe County | 125 | 1964 | High | Fair |
| McPhee Great Cut Dike Montezuma County | 75 | 1983 | High | Not Available |
| Mc Reynolds Teller County | 62 | 1903 | High | Fair |
| Meadow Creek Grand County | 126 | 1974 | High | Satisfactory |
| Meadow Creek Garfield County | 77 | 1958 | High | Fair |
| Mesa Park Boulder County | 25 | 1907 | High | Fair |
| Metroz Park, Lower Mineral County | 35 | 1907 | High | Satisfactory |
| Middle Fork Garfield County | 130 | 1984 | High | Satisfactory |
| Million Reservoir Rio Grande County | 25 | 1953 | High | Not Rated |
| Milton Lake Weld County | 55 | 1911 | High | Satisfactory |
| Milton Seaman Larimer County | 120 | 1948 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.