The original library for what was then Lake Clifton High School burned to the ground in 1995. It was rebuilt in 1998 and re-opened in 1998 as a state-of-the-art facility. The library currently services the REACH! Partnership School.
And yes, the library was built where a lake once existed.
Lightner, James K. “Lake Clifton.” Photograph. Baltimore County Public Library Legacy Web. 1964. 6 October 2009.