The final plat drawings and specifications of improvements shall be a set of construction and utility plans prepared by a registered professional engineer. The plans shall include a title of the plan, typical sections, plans and profile views, miscellaneous construction details, and estimates of quantities with calculations. Cross-sections shall be submitted upon request of the Planning Commission. All typical sections and major engineering details to be used on any particular parcel or street shall be approved in advance by the Village Engineer before completion of the construction plans. Prior to the granting of approval of the final plat, the subdivider shall have installed the minimum required improvements, or shall have furnished a surety or certified check for the amount of the estimated construction cost of the ultimate installation and the initial maintenance of the improvements. Before the surety is accepted, it shall be approved by the proper administrative officials. The term of the surety shall extend 12 months beyond the completion date of the project. (Ord. 574. Passed 5-21-97.)