Nizao is one of the most important rivers in the Dominican Republic. Three hydroelectric power/electrical plants have been built along its path. It is dried because of decade of aggregate extraction. Luis Carvajal, a top Dominican ecologist, estimated a cost of RD$350M per km to recover the river. 
- Jobin, William R.; Jobin, William (1999). Dams and disease: ecological design and health impacts of large dams, canals and irrigation systems. Taylor & Francis. pp. 157–158. ISBN 978-0-419-22360-3.
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