Citing low enrollments, the school board had already closed Waterproof High School, which is listed on the National Register of Historic Places,<ref>{{cite web|url=http://www.nationalregisterofhistoricplaces.com/la/Tensas/state.html|title=National Register of Historic Places: Louisiana, Tensas Parish|publisher=nationalregisterofhistoricplaces.com|accessdate=January 10, 2011}}</ref> and Lisbon Elementary School, both in the economically depressed town of Waterproof in the southern part of Tensas Parish. | Citing low enrollments, the school board had already closed Waterproof High School, which is listed on the National Register of Historic Places,<ref>{{cite web|url=http://www.nationalregisterofhistoricplaces.com/la/Tensas/state.html|title=National Register of Historic Places: Louisiana, Tensas Parish|publisher=nationalregisterofhistoricplaces.com|accessdate=January 10, 2011}}</ref> and Lisbon Elementary School, both in the economically depressed town of Waterproof in the southern part of Tensas Parish. |