In most cases this has meant developing water supplies primarily for irrigation to reclaim arid lands in the West. As of 2008, the Reclamation operates and maintains 2 122 water and power structures in the 17 western states. Among these facilities are 471 dams, 348 reservoirs, 58 power plants, and numerous water delivery facilities. This infrastructure provides water to 31 million people and provides irrigation water for 10 million acres of farmland that produce 60% of the nation's vegetables and 25% of its fruits and nuts.