Mo. Rev. Stat. § 231.390
All special tax bills issued for special assessments for constructing sidewalks, curbs, gutters, combinations of curb and gutter and roadways as authorized herein shall be assignable and collectible by suit in the name of the county to the use and at the cost of the holder thereof. Any such tax bills heretofore or hereafter issued in payment for the construction of a public road, which are invalid by reason of an irregularity in the procedure prescribed for their issuance, may be redeemed by the county and payment thereof made as directed by the county commission. Such special tax bills in any action thereon, shall be prima facie evidence of the regularity of the proceedings for such special assessment, of the validity of the bill, of the doing of the work, and of the furnishing of the materials charged for, and of the liability of the property to the charge stated in the bill.
§ 231.390, RSMo