Location of irrigation wells in 2007
As of August 2007 over 90,000 active irrigation wells were in operation in Nebraska. The highest density of wells are located in the Central Platte Valley where over 16 irrigation wells have been installed per square mile of land. A review of irrigation wells installed per decade shows that the first irrigation wells were installed in the 1930s and 1940s. As power sources and well drilling methods became available in the late 1940s the number of irrigation wells installed increased to approximately 14,000 wells per decade. The most wells were installed in the 1970s. Since the seventies about 10,000 wells were installed each decade.