§ 153.05 REQUIRED IMPROVEMENTS.
   Improvements shall be made in all subdivisions according to the following requirements.
   (A)   Monuments. Steel monuments shall be placed at all block corners, angle points, points of curves in streets and at intermediate points as shown on the final plat. The installation shall be the subdivider’s expense and responsibility. All U.S., state, county or other official benchmarks, monuments or triangulation stations in or adjacent to the property shall be preserved in precise position.
   (B)   Warning signs. In areas within the floodplain, warning signs shall be placed by means of firmly placed markers of a sufficient size to be easily read from a distance of 20 feet, which signs shall meet the requirements of the floodplain provisions of the city code. The warning signs shall be installed prior to the sale of lots and construction of any buildings or structures.
   (C)   Streets.
      (1)   Grading. Streets shall be graded to the full width of the right-of-way. All street grading will be in accordance with specifications on file in the City Clerk’s office. Grading will be complete prior to installation of applicable underground utilities, either private or public in nature.
      (2)   Surfacing. Following City Engineer approval of street grading and after utility installation, streets shall be surfaced and provided with concrete curbs and gutters in accordance with the latest recommended plans and specifications prepared by the City Engineer, approved by the Council and on file in the City Clerk’s office.
   (D)   Utilities. All utilities, whether private or public shall be installed underground so as to enhance the visual appearance of the area. Where utilities are to be installed in street or alley rights-of-way, the installation shall take place prior to street surfacing. Water and sewer laterals shall be laid to the property line ending at the corporation cock.
      (1)   Sanitary sewer. Sanitary sewer facilities adequate to serve the subdivision shall be installed in accordance with the latest plans and specifications of the City Engineer.
      (2)   Water supply. Water distribution facilities adequate to serve the subdivision including pipe, fittings, hydrants, valves and the like, shall be installed. All water mains shall be installed in accordance with the latest plans and specifications of the City Engineer.
   (E)   Drainage facilities. Storm sewer and/or other surface drainage facilities shall be installed as determined to be necessary by the City Engineer for the proper drainage of surface waters.
   (F)   Sidewalks. Sidewalks, when provided, shall be of monolithic concrete, four inches in thickness with pitch and surface as approved by the City Engineer, with a required width for sidewalks of at least five feet.
   (G)   Specifications/inspections. Unless otherwise stated, all of the required improvements shall conform to engineering standards and specifications as required by the Council. The improvements shall be subject to inspection and approval by, and shall be made in sequence as determined by the City Engineer.
   (H)   Financing. The above improvements shall be paid for according to the terms of the city’s special assessment policy, adopted by the Council by resolution, which is in effect at the time the improvements are ordered, a copy of the policy to remain on file and available for inspection during normal business hours in the office of the City Clerk.
   (I)   Review and inspection. The subdivider shall pay for all costs incurred by the city for subdivision review and inspection. This would include preparation and review of plans and specifications by technical assistants and cost incurred by the City Attorney, as well as other costs of similar nature.
   (J)   When improvements required. The improvements required by this chapter shall be made as the subdivision is developed upon petition of the developer for the improvement or upon Council initiation.
(2003 Code, § 10.21) (Ord. passed 2-16-1953; Ord. 80-1, passed 3-14-1980)