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 51–75 of 691
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Big Sandy Creek Watershed N-21 Elbert County | 32 | 1959 | Low | Satisfactory |
| Big Sandy Creek Watershed S-22 Elbert County | 36 | 1959 | Low | Satisfactory |
| Big Tooth El Paso County | 102 | 1927 | High | Satisfactory |
| Bills Ranch Lake Summit County | 8 | 1933 | Significant | Satisfactory |
| Binco Grand County | 45 | 1913 | Low | Satisfactory |
| Black Hollow Weld County | 42 | 1918 | High | Satisfactory |
| Black Lake #1 Eagle County | 73 | 1939 | High | Satisfactory |
| Black Lake #2 Eagle County | 30 | 1957 | Significant | Satisfactory |
| Blackmer #1 Arapahoe County | 12 | 1936 | Low | Satisfactory |
| B.L. Swift Weld County | 12 | 1890 | Low | Satisfactory |
| Blunn Jefferson County | 125 | 1979 | High | Satisfactory |
| Bolen, Anderson, Jacobs Mesa County | 19 | 1969 | Low | Satisfactory |
| Bonnie Meade Pueblo County | 20 | 1948 | Low | Satisfactory |
| Boomerang Weld County | 30 | 1990 | Low | Satisfactory |
| Bosley Wash Detention Basin Mesa County | 26 | 2019 | High | Satisfactory |
| Boulder - North Boulder County | 51 | 1955 | High | Satisfactory |
| Boulder - South Boulder County | 59 | 1955 | High | Satisfactory |
| Bowles #1 Jefferson County | 25 | 1973 | Significant | Satisfactory |
| Box Elder #2 Larimer County | 13 | 1885 | Low | Satisfactory |
| Box Springs #2 Crowley County | 15 | 1899 | Low | Satisfactory |
| Boyd Lake Larimer County | 40 | 1900 | High | Satisfactory |
| Branith #1 Boulder County | 16 | — | Low | Satisfactory |
| Breidenbach Logan County | 16 | 1941 | Low | Satisfactory |
| Brett Gray Lincoln County | 29 | 1939 | Low | Satisfactory |
| Bristlecone El Paso County | 88 | 1986 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.