The Capay Diversion Dam, west of Capay, diverts water for distribution throughout Yolo County using a 175-mile (280 km) network of canals. For example, water is pumped into the Winters Canal, which runs south and ends in a reservoir near Winters. This feeds into Willows Canal, which runs east for miles alongside Putah Creek—the water of which is used primarily by Solano County. The 474 foot long, 15 foot high concrete dam was constructed in 1914. In 1994 its apron was raised with a 5-foot high inflatable bladder (the "longest in the world"), which can be raised or lowered in 30 minutes. It underwent substantial repairs starting in 2009.