In 1994, a 100-acre site located in the U.S. Army Base at Fort Meade, MD was transferred to the U.S. Congress to provide additional storage capacity for the Library of Congress and other legislative bodies. The current master plan includes the land to construct up to 13 Phased Storage Modules for collections, if this number is needed.

In subsequent years Congress provided construction funds in the Architect of the Capitol budget for Module 1, completed in 2002, for Module 2, completed in 2005 and Modules 3 and 4 and four cold storage rooms, completed in 2009. A full scale three year transfer program of the special format collections to Modules 3 and 4 and the four cold storage rooms began in Spring 2010 and was completed in September 2012. Module 5 is currently under construction, and occupancy is scheduled for September 2017.

The state-of-the art Storage Modules are being built to store, preserve and protect the Library’s collections. Collections include books and bound periodicals as well as special format collections, such as maps, manuscripts, prints, photographs, sheet music, and microfilm masters. If needed and constructed, the 13 collections storage modules will provide a total of 180,600 gross sq ft of archival storage space for the Library’s collections.