The minimum rights-of-way for streets, crosswalks and easements are as follows.
   (A)   Primary thoroughfares and existing highways.  As specified in the Official Thoroughfare Plan, but not less than 96 feet in any case.
   (B)   Secondary thoroughfares. As specified in the Official Thoroughfare Plan, but not less than 80 feet in any case.
   (C)   Collector streets.  As specified in the Official Thoroughfare Plan, but not less than 60 feet in any case.
   (D)   Local streets. Local streets, 50 feet. All cul-de-sacs shall terminate in a circular turnaround having a minimum right-of-way diameter of 120 feet. Dead end streets with no turnaround facilities shall not be approved except as authorized in § 153.038.
   (E)   Alleys. Where platted, shall have a minimum width of 20 feet.
   (F)   Crosswalks. Crosswalks, minimum ten feet.
   (G)   Utility easements. Where required, utility easements shall be at least ten feet along the front lot line and 15 feet wide along rear or side lot lines and as required by the utility company, the Utility Department of the city, the City Engineer and Chapter 152.
   (H)   Easements along streams.
      (1)   Whenever any streams or important surface drainage course is located in the area being subdivided, and open drainage is to be permitted, the subdivider shall provide an adequate easement along each side of the stream or open drainage course for the purpose of widening, deepening, relocation, improving, or protecting the stream or open drainage course for drainage according to Chapter 152, Flood Damage Prevention, or recreational use.
      (2)   Easements shall be provided by the subdivider for the full width and length of any watercourse or open drainage ditch within the subdivision which will carry drainage runoff from said subdivision and/or from any other lands situated within the watershed.
      (3)   Easements, at least 15 feet in width, shall be provided by the subdivider for any utility system, facility or portion thereof, that may need to be installed, connected, continued or extended, at any time, in order to adequately serve any other land that adjoins the proposed subdivision.
      (4)   In general, such easements shall be centered on, or adjacent to, rear or side lot lines and shall provide satisfactory access to any connecting street. At the request of the Plan Commission, utility companies are to be contacted by the subdivider to determine easement width needed. Whenever practical, all utilities shall be placed underground. No building shall be erected on said easement. All final plats shall be accompanied with evidence that all utilities concur and easements indicated on the plat are suitable for their servicing the area.
      (5)   Where a subdivision is traversed by a watercourse, drainage way, channel or stream, there shall be provided a drainage easement conforming substantially with the line of such watercourse, drainage way, channel or stream of at least 15 feet and shall include both edges of the floodplain area as designated by the engineer or as certified by the subdivider or his or her engineer. The subdivider shall dedicate the easements to the city, and the property owner of the lots drained by the easement shall be responsible for the upkeep.
      (6)   A report by an engineer or land surveyor registered in the State of Indiana must accompany the primary plat of a subdivision, giving the quantity, velocity and depth of flow in all drainage courses at points of entering and leaving the subdivision and at key points within the subdivision for flows anticipated, after development of the area, from design storm event with an average recurrence interval of ten years and 25 years. The effect of such flows at these points on hydraulic structures should be presented in the report. Any open channel must be structurally lined with adequate checks to prevent excessive velocities.
      (7)   All drainage easements shall be private.
(Ord. - -, passed - -)  Penalty, see § 153.999