§ 153.110  STREETS.
   (A)   Where a subdivision abuts an existing county road, additional right-of-way along the county road will be deeded to the county to establish rights-of-way as follows:
      (1)   Arterial road:  100 feet right-of-way;
      (2)   Primary road:  80 feet; and
      (3)   All other roads:  60 feet right-of-way.
   (B)   Definitions and locations of streets shall conform to the county Thoroughfare Plan, as shown in Appendix D.
   (C)   If the subdivision is judged to create additional traffic and change the existing road classification, the new classification will govern the amount of right-of-way required.
   (D)   The street layout shall provide access to all lots and parcels of land within the subdivision, and where streets cross other streets, jogs shall not be created.
   (E)   Proposed streets shall be adjusted to the contour of the land so as to produce usable lots and streets of reasonable gradient.
   (F)   Each developed subdivision shall have at least two points of ingress and egress to provide for normal traffic circulation in the vicinity of the subdivision.
   (G)   Wherever there exists a dedicated or platted portion of a street or alley adjacent to the proposed subdivision, the remainder of the street or alley to the prescribed width shall be platted within the proposed subdivision.
   (H)   Street width shall be 30 feet of pavement, and a cul-de-sac shall have a pavement radius of 75 feet.
   (I)   (1)   The minimum right-of-way of streets, marginal access streets, or culs-de-sac shall be 60 feet. 
      (2)   All culs-de-sac shall terminate in a circular right-of-way with a minimum diameter of 150 feet, or other arrangement for the turning of all vehicles conveniently within the right-of-way.
   (J)   The center lines of streets should intersect at right angles.
   (K)   At the intersection of streets, the property line corners shall be rounded by arcs with radii of not less than 45 feet or by chords of arcs thus curved.
   (L)   If the smaller angle of intersection of two streets is less than 90 degrees, the radius of the arc at the intersection of property lines shall be increased as deemed advisable by the Commission.
   (M)   Intersections of more than two streets at one point shall be avoided.
      (1)   Minor street center lines shall be separated by 150 feet.
      (2)   Major street center lines shall be separated by 500 feet.
   (N)   Where parkways or special types of streets are involved, the Commission may apply special standards to be followed in their design.
   (O)   Whenever the proposed subdivision contains or is adjacent to a railroad right-of-way, a street, or a highway designated as a limited access street or highway by the appropriate authorities, provision shall be made for a service road at a distance acceptable for the appropriate use of the land between the highway or railroad and the service road.
   (P)   Horizontal visibility on curved streets and vertical visibility on all streets must be maintained along the center lines as follows:
      (1)   Primary and secondary streets:  600 feet; and
      (2)   Feeder streets and parkways:  300 feet.
   (Q)   Curvature measured along the center line shall have a minimum radius as follows:
      (1)   Primary and secondary streets:  800 feet; and
      (2)   Feeder parkways:  300 feet.
   (R)   Between reversed curves there shall be a tangent of not less than 125 feet.
   (S)   Maximum grades for streets shall be no greater than 6%.
   (T)   The minimum grade of any street gutter shall not be less than three-tenths percent.
(`88 Code, § 8-116)  (Ord. 98-20, passed 11-10-98)