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 501–525 of 1,217
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lost Lake Larimer County | 15 | 1929 | Low | Satisfactory |
| Lost Creek #1 Weld County | 9 | 1908 | Low | Not Rated |
| Lost Canyon Montezuma County | 28 | 1965 | Low | Fair |
| Longs Peak #2 Boulder County | 51 | 1968 | Low | Not Rated |
| Longs Peak #1 Boulder County | 41 | 1960 | Low | Satisfactory |
| Long Slough Mesa County | 11 | 1912 | Low | Not Rated |
| Longmont Reservoir Boulder County | 30 | 1900 | Low | Unsatisfactory |
| Lone Star #3 Delta County | 16 | 1984 | Low | Not Rated |
| Lone Star #2 Delta County | 14 | 1914 | Low | Satisfactory |
| Lone Star #1 Delta County | 47 | 1914 | Low | Satisfactory |
| Lone Pine Larimer County | 48 | 1979 | Low | Not Rated |
| Lone Cabin Delta County | 37 | 1936 | Low | Fair |
| Lolita #3 Crowley County | 12 | 1895 | Low | Satisfactory |
| Logan Weld County | 10 | 1882 | Low | Not Rated |
| Little Johnny Fremont County | 32 | 1954 | Low | Not Rated |
| Little Hohnholtz Larimer County | 18 | 1969 | Low | Fair |
| Little Hell Creek Diversion Dam Larimer County | 43 | 1952 | Low | Not Available |
| Little Grouse Delta County | 23 | 1956 | Low | Not Rated |
| Little Giant #1 Delta County | 31 | 1963 | Low | Not Rated |
| Little Gem Weld County | 30 | 1902 | Low | Satisfactory |
| Little Gem Delta County | 26 | 1948 | Low | Satisfactory |
| Linke Grand County | 13 | 1916 | Low | Satisfactory |
| Lininger Lake Park County | 12 | 1930 | Low | Not Rated |
| Lindies Lake Weld County | 8 | 1894 | Low | Not Rated |
| Lindenmeirs Larimer County | 12 | 1902 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.