Mo. Rev. Stat. § 231.050

Each road overseer shall file with the county highway engineer, or the county clerk in counties that have no highway engineer, between the first and tenth day of each month, a detailed statement of his transactions as road overseer during the preceding month, showing the amounts collected by him and from whom collected, and the amounts disbursed, and on what account, and what work has been done in his district, including the amount of his own work, and when and where done, and for the making of which reports suitable blanks shall be furnished by the county.