The White Clay Creek dam was the first ever removed in the state of Delaware, but it was far from the only one removed in the United States last year.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/movement-take-down-thousands-dams-goes-mainstream
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/national-geographic-news
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/california
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydroelectricity
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecology