The state board of land commissioners is hereby authorized to lease the lands described in section 21-603[, Idaho Code], for public airport purposes upon such conditions as the board may determine best in the interests of the state and for such a term as said land shall be used for such purposes.
Said lands are now needed and in part used as a portion of a site for an airport to be constructed in cooperation with the federal government, the city of Twin Falls, the works progress administration and other public agencies or organizations which have already spent a large sum of money in the partial construction of such airport.