The board of public works and safety is authorized to use funds available for street improvement purposes to participate with the owners of lands abutting streets within the city in the improvement of such streets in accordance with the requirements of the board of public works and safety and the standards for street improvements established in the city ordinance providing for the control of the subdivision of land and this chapter. For any such participation project, the board shall be governed by the following policies:

    A.    The city shall not participate in the cost of constructing any street which is less than thirty feet, back of curb to back of curb. When the width of the street is required to be greater than thirty feet, back of curb to back of curb, by this chapter, the city shall bear the entire cost of such greater width which shall be deemed to be taken from the center of the street. Where the width of the street is desired to be greater than thirty feet, back of curb to back of curb, by the owner, and such greater width has been approved by the city plan commission and the board of public works and safety, such owner shall bear the entire cost.

    B.    The cost of grading, excavating and acquiring any right-of-way that may be needed in connection with the improvement of streets hereafter dedicated shall not be considered a part of the improvement cost in which the city can participate. (Prior code § 27-24)