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 401–425 of 691
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Louisville No. 1 Boulder County | 20 | 1888 | Significant | Satisfactory |
| Loup Lake Weld County | 24 | 1931 | Significant | Satisfactory |
| Loveland Lake Larimer County | 30 | 1905 | Significant | Satisfactory |
| Loveland Water Storage Larimer County | 152 | 1977 | High | Satisfactory |
| Lower Beaver Brook Clear Creek County | 54 | 2022 | High | Satisfactory |
| Lower Latham Weld County | 27 | 1900 | Significant | Satisfactory |
| Lower Sacramento Ck. #1 Park County | 19 | 1981 | Low | Satisfactory |
| Lower Urad Clear Creek County | 90 | 1965 | High | Satisfactory |
| Lowry Ridge Storage Arapahoe County | 13 | 2018 | Low | Satisfactory |
| Lucky Find Delta County | 20 | 1905 | Low | Satisfactory |
| Lundvall Dam #2 Weld County | 12 | — | Low | Satisfactory |
| Main Jefferson County | 46 | 1908 | High | Satisfactory |
| Mann Jefferson County | 15 | 1877 | Low | Satisfactory |
| Maple Grove Jefferson County | 59 | 1956 | High | Satisfactory |
| Margaret Spurgeon #1 Boulder County | 42 | 1963 | Significant | Satisfactory |
| Mariano Larimer County | 30 | 1889 | High | Satisfactory |
| Marshall Adams County | 26 | 1904 | Low | 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 Grand County | 23 | 1913 | Low | Satisfactory |
| Martin Routt County | 38 | 1960 | Low | Satisfactory |
| Martin Cull Moffat County | 53 | 1955 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.