The Karl Junginger Memorial Library is comprised of 12,000 square feet and is divided into two wings. One wing houses the adult stack areas, the informal reading area office, and the Kathryn Cady Clark Children's Library. The other wing contains a community meeting room which seats 100 and is served by a small kitchen. Connecting these wings is a lobby area with space for Historical Society displays, temporary shows, and social events. Both meeting room and a smaller conference room are accessible from the lobby when the library is closed. The one-story building is constructed of concrete block with brick and natural stone facing. A wood truss roof is covered with concrete roof tiles which simulate slate.
Wide sheltering eaves and a strong horizontal emphasis recall the ?Prairie Style? architecture of Frank Lloyd Wright. Extensive use of oak, carpet, and indirect lighting create the warm intimate character sought by the client. The library was constructed adjacent to the campus of the Waterloo School District to facilitate access and interaction with the district's facilities. Sidewalks connect the library with the school. To further facilitate information access and transfer, the new library has provisions to link its retrieval system to the computer network serving all the Waterloo School libraries.
Extensive landscaping was donated by McKay Nursery of Waterloo and was installed by volunteers from that company.