Hydroelectric Dams in Puerto Rico

Puerto Rico has 17 hydroelectric dams, of which 17 carry a high hazard classification. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Caonillas Dam	Jayuya	235	High	Satisfactory	1948
2	Garzas Dam	Adjuntas	201	High	Unsatisfactory	1943
3	Guayo Dam	Adjuntas	190	High	Poor	1956
4	Dos Bocas Dam	Arecibo	188	High	Satisfactory	1942
5	Comerio Ii Dam	Comerío	128	High	Poor	1913
6	Patillas Dam	Patillas	127	High	Poor	1976
7	Guajataca Dam	Isabela	120	High	Poor	1927
8	Matrullas Dam	Orocovis	120	High	Unsatisfactory	1934
9	Guineo Dam	Orocovis	115	High	Poor	1931
10	Carite Dam	Guayama	104	High	Poor	1913
11	Prieto Dam	Maricao	98	High	Satisfactory	1955
12	Loiza Dam	Trujillo Alto	95	High	Satisfactory	1954
13	Yahuecas Dam	Adjuntas	90	High	Satisfactory	1956
14	Vivi Dam	Utuado	85	High	Satisfactory	1950
15	Adjuntas Dam	Adjuntas	80	High	Satisfactory	1950
16	Pellejas Dam	Adjuntas	50	High	Satisfactory	1950
17	Comerio I Dam	Comerío	47	High	Poor	1907

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