When
Hurricane Katrina struck New Orleans on August 29, 2005, the 40,000 square foot Library basement was flooded with more than eight feet of water. Four feet of water filled the basement of the library annex in Jones Hall. These areas housed the library's special collections, the Maxwell Music Library, and a very large collection of government documents. More than 700,000 print volumes and recordings, 700,000 manuscript folders and archival items, and 1.5 million individual pieces of microform were submerged. Due to serious flooding and damage to nearby neighborhoods, the library was inaccessible to reconnaissance teams for several days. In that time, the standing water in the basement, combined with the lack of electricity (and, thus, lack of
temperature control and air circulation), led to high humidity and temperature and thus the development of
mold in the library at large. The disaster management company
BELFOR was called to the scene as quickly as possible to begin recovery work. A temporary air circulation system run by generators was installed just 10 days after the storm and within a month, all of the water had been pumped out of the basement. The damage from the flooding was significant. Basement walls were coated in slime and muck. Furniture and shelving had floated to the corners of the space, dislodging the materials that they once had housed, and subjecting them to submersion. The Maxwell Music Library had held more than 43,000 titles including books, scores, journals, and many rare and historic sound recordings on CD and LP. More than 70 percent of the printed books and scores were salvaged for restoration, but no recordings could be saved. The Government Documents Archive, which had held over 500,000 volumes, lost 90% of its collection. Nearly all of the salvaged government documents were trapped in storage-unit containers that had to be ripped apart to access the saturated material inside. A very large
Microforms area on the north side of the basement had held more than 30,000 titles of facsimile collections of rare or scholarly material and newspaper archives. Less than five percent of these materials could be salvaged because of the damage that lengthy immersion in dirty water can do to microforms, especially in formats such as fiche or microcard. None of the materials from the original 19th-century Howard Collection could be salvaged, due to structural wreckage and especially dangerous conditions in that area of the library. ==Recovery==