Puerto Rico Dams
36 dams tracked by the National Inventory of Dams
Total Dams
36
High Hazard
36
100%
Poor / Unsatisfactory
12
Average Age
74 yrs
Hazard Classification
High36 (100.0%)
Significant0 (0.0%)
Low0 (0.0%)
Condition Assessment
Satisfactory24 (66.7%)
Fair0 (0.0%)
Poor / Unsatisfactory12 (33.3%)
Not Rated0 (0.0%)
Federal
0
State
8
Local
3
Private
3
Tallest Dams
- Cerrillos Dam323 ft
- Caonillas Dam235 ft
- Portugues Dam220 ft
- Toa Vaca Dam215 ft
- Garzas Dam201 ft
High Hazard Dams
- Cerrillos DamHigh
- Caonillas DamHigh
- Portugues DamHigh
- Toa Vaca DamHigh
- Garzas DamHigh
Poor Condition Dams
- Garzas DamUnsatisfactory
- Guayo DamPoor
- Guayabal DamPoor
- Comerio Ii DamPoor
- Patillas DamPoor
All Dams in Puerto Rico
Showing 1–10 of 10
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Patillas Dam Patillas County | 127 | 1976 | High | Poor |
| Guineo Dam Orocovis County | 115 | 1931 | High | Poor |
| Guayo Dam Adjuntas County | 190 | 1956 | High | Poor |
| Guayabal Dam Villalba County | 130 | 1913 | High | Poor |
| Guajataca Dam Isabela County | 120 | 1927 | High | Poor |
| Daguey Dam Structure 3 Añasco County | 50 | 1978 | High | Poor |
| Comerio Ii Dam Comerío County | 128 | 1913 | High | Poor |
| Comerio I Dam Comerío County | 47 | 1907 | High | Poor |
| Carite Dam Guayama County | 104 | 1913 | High | Poor |
| Ajies Dam Structure 2a Añasco County | 52 | 1984 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.