Okla. Stat. tit. 19 § 740
The board of county commissioners, district judge and county judge of any county in this state may use for the purpose of erecting, remodeling or rebuilding a courthouse or jail, or both, at the county seat, all or any portion of the sinking fund of the county derived from penalties, interest and forfeitures accrued, or to accrue, and in addition thereto, where a mill tax for courthouse or jail purposes has been, or may be voted by a majority of the qualified electors of said county covering a period of years, the county commissioners, district judge and county judge of said county may make an estimate of the amount that the said levy together with the sinking fund, interest and penalties so derived will raise during the entire period of time for which said mill levy has been or may be voted, based on the average valuation of the property in said county for the last past five (5) years and may contract for and cause to be erected a courthouse and jail, or either in said county, at the county seat thereof, and may draw warrants against said estimate in payment therefor, which shall be a legal charge against said county, payable out of the fund thus derived. Said warrants to be issued in amount not to exceed One Thousand Dollars ($1,000.00) each, and when funds accumulate in the county treasury to the credit of said fund sufficient to pay one or more of said warrants the county treasurer shall give notice by publication in a newspaper published in said county that the money is available to pay said warrants, or warrant, giving the number and date of said warrant or warrants, and unless said warrant, or warrants, are presented for payment within thirty (30) days from the date of said publications, said warrants, or warrant, so advertised shall cease to draw interest. Said contract for the building as aforesaid shall be approved by the county commissioners, district judge and county judge of said county. This act shall not be construed as affecting or repealing any existing law and shall be cumulative in its operation and effect.
Okla. Stat. tit. 19, § 740