Mo. Rev. Stat. § 89.460

89.460. Public improvements, how approved after adoption of major street plan. — Upon adoption of a major street plan and subdivision regulations, the municipality shall not accept, lay out, open, improve, grade, pave or light any street, lay or authorize the laying of water mains, sewers, connections or other utilities in any street within the municipality unless the street has received the legal status of a public street prior to the adoption of a city plan; or unless the street corresponds in its location and lines with a street shown on a subdivision plat approved by the council or planning commission or on a street plan made by and adopted by the commission. The council may locate and construct or may accept any other street if the ordinance or other measure for the location and construction or for the acceptance is first submitted to the commission for its approval and approved by the commission or, if disapproved by the commission, is passed by the affirmative vote of not less than two-thirds of the entire membership of the council.

(L. 1963 p. 146 § 17)