Presa Sangregado Dam

Presa Sangregado Dam (also known as Arenal Dam and Sangregado Dam) is a high-earthen hydroelectric dam on the south-east shore of Lake Arenal in the Guanacaste Province of northwest Costa Rica. The dam is 288 ft and 184 ft high. The installed hydroelectric capacity is 157 megawatts. The hydroelectric power plant is operated by Instituto Costarricense de Electricidad.