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 1076–1100 of 1,962
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jett Baca County | 21 | 1948 | Low | Not Rated |
| Jerry Creek Dike 1 Mesa County | 40 | 1978 | High | Satisfactory |
| Jerry Creek #2 Mesa County | 150 | 1978 | High | Satisfactory |
| Jerry Creek #1 Mesa County | 57 | 1964 | High | Satisfactory |
| Jensen Mesa County | 7 | 1913 | Low | Not Rated |
| Jefferson Lake Park County | 33 | 1951 | High | Satisfactory |
| J.C. Temple #1 Routt County | 30 | 1945 | Low | Not Rated |
| Jasper Boulder County | 18 | 1988 | High | Satisfactory |
| James Tingle Park County | 26 | 2009 | High | Satisfactory |
| James Marion Yoast Routt County | 23 | 1909 | Low | Fair |
| Jacobs Ladder Archuleta County | 25 | 1981 | Low | Not Rated |
| Jack Williams Las Animas County | 32 | 1965 | Low | Not Rated |
| Jackson Pond Kiowa County | 9 | — | Low | Not Rated |
| Jackson Lake Morgan County | 39 | 1900 | High | Satisfactory |
| Jackson Gulch Dam Montezuma County | 180 | 1949 | High | Not Available |
| Jackson Jackson County | 15 | 1954 | Low | Fair |
| Ivanhoe Pitkin County | 17 | 1928 | Significant | Satisfactory |
| I. S. Price Teller County | 27 | 1954 | Low | Fair |
| Island Lake Delta County | 23 | 1954 | Significant | Fair |
| Island Lake Boulder County | 23 | 1890 | Low | Fair |
| Ish #3 (Main Dam) Larimer County | 48 | 1905 | High | Satisfactory |
| Ish #3 (East Dam) Boulder County | 12 | — | Significant | Satisfactory |
| Ireland #5 Weld County | 20 | 1976 | Low | Satisfactory |
| Ireland #1 Weld County | 13 | 1919 | Low | Not Rated |
| Inverness Arapahoe County | 35 | 1973 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.