 In 2000, the Derwent Valley Mills were nominated to become a World Heritage Site. Along with Blaenavon Industrial Landscape, New Lanark, and Saltaire (all now World Heritage Sites), the site was proposed to increase the representation of industrial archaeology on the list of World Heritage Sites. The proposal was successful and in 2001 the Derwent Valley Mills were designated a World Heritage Site. Its status as a World Heritage Site is intended to ensure its protection; all such sites are considered to be of "outstanding value to humanity". The site was listed under the second and fourth Heritage Site selection criteria. The Derwent Valley Mills pioneered worker's housing as well as much technology developed by Richard Arkwright, producing an industrial landscape and heralding industrial towns. The Derwent Valley Mills Partnership is responsible, on behalf of the British government, for the management of the site. In June 2009, Bath Street Mill in Derby was damaged by fire. The building was part of the World Heritage Site and dated from the 18th century.
