When land has been acquired and such buildings and structures erected and improvements made as may be immediately necessary for the carrying out of the purposes of this article or arrangements have been made for an industrial road camp or camps, the board of supervisors shall adopt a resolution proclaiming that an industrial farm or road camp has been established in the county and designating a day on and after which persons will be admitted to such farm or camp. Certified copies of the resolution shall be forwarded by the clerk of the board of supervisors to each superior court judge in the county.