Section 32.63 - Completing certain improvements(1) APPLICATION. This section applies to any plan of improvement that includes the acquisition of property either for the purpose of laying out or improving an alley or street, as defined in s. 340.01(2) and (64), or for the purpose of establishing any park or memorial ground and that includes any of the following improvements: (a) Creating or improving gutters, curbs or sidewalks of the alley or street.(b) Improving any park or memorial ground.(c) Erecting any bridge or viaduct.(2) PERFORMANCE. After approving the plan of improvement under s. 32.55, the city may complete the improvement without submitting further estimates of the cost of the improvement to the common council. The common council may not revise its assessment of benefits or damages for the improvement.