Mo. Rev. Stat. § 88.043: Condemnation of property — payment of assessed damages.

If the amount of damages finally allowed by the court or jury shall be greater than the amount allowed by the commissioners, the excess shall be paid by the city and the assessments against the property benefitted and against the city, if any, as made by the commissioners, shall remain the same, but if the amount of damages finally allowed shall be less than the amount allowed by the commissioners all assessments made by the commissioners shall be reduced proportionately.