Mo. Rev. Stat. § 88.707
When the board of aldermen of any city of the fourth class shall deem it necessary to pave, macadamize, gutter, curb, grade or otherwise improve the roadway of any street or avenue for a distance not more than twelve hundred feet in length so as to connect at both ends with paving, macadamizing, guttering, curbing, grading or other improvements either on the same street or avenue or other streets or avenues, or on the same street or avenue and another street or avenue, the board of aldermen shall declare such work to be necessary to be done and shall cause the same proceedings to be had as are provided in section 88.700, except no protest may be filed. The resolution passed and published shall state the fact that anyone desiring to do so may appear before the board of aldermen at a time stated therein and be heard on the question of the necessity of the work sought to be done, and if anyone does so appear he shall be heard, and the board of aldermen shall, by resolution, state the result of such hearing to be a reaffirmance of the necessity for the doing of such work or the contrary, as the board of aldermen may then decide. If no one appears, or if the board of aldermen reaffirm the necessity of the doing of such work and improvement, then it shall proceed with such work and improvement in the manner in this chapter provided for such work and improvement when no sufficient protest against such improvement is filed within the time limited therefor.
§ 88.707, RSMo