§ 154.124  LAYOUT AND ALIGNMENT.
   (A)   Streets must be laid out in conformity to street or highway plans officially adopted by the state, county or township or any highway authority.
   (B)   If the subdivision lies within one and one- half miles of the corporate limits of a municipality, the streets must be in conformity with the street or highway plan officially adopted by the corporate authority of that municipality.
   (C)   Wherever a street or highway shown on an officially adopted plan runs through a proposed subdivision, it must be provided for in the place and with the width indicated on the adopted plan. The Chief Subdivision Engineer is authorized to require that the right-of-way specified on the officially adopted plan be dedicated to the public on or as part of the final plat.
   (D)   Where streets are not a part of the official map or officially adopted street or highway plans, the arrangement of subdivision streets must be designed and located in proper relation to existing and proposed streets, to the topography of the area, and to natural features such as streams, hills and stands of trees.
   (E)   Proposed streets must be designed to coordinate with other existing or planned streets contiguous to or within the general area of the subdivision or within existing or future adjacent subdivisions as to location, width, grades and drainage. Connections with existing or platted streets must be continuous without offset.
   (F)   (1)   Stub streets must be platted, dedicated and constructed for public use to the boundary line of the subdivision when necessary to afford desirable and safe street access to adjoining properties.
      (2)   The following requirements apply to required stub streets.
         (a)   Stub streets must be clearly marked on plats and labeled “Future Street Extension”. In addition, a sign must be posted on the stub street right-of-way indicating that it is intended as a “Future Street Extension”.
         (b)   The following notation must be incorporated into any plat showing a stub street:
This right-of-way is platted with the intent of being extended and continued in order to provide ingress and egress to and from adjoining properties.
         (c)   Temporary T-turnarounds (§ 154.131) must be provided at all stub streets.
   (G)   Where a stub street in an existing subdivision or development has been platted to the boundary line of a proposed subdivision, it must be extended and continued into the proposed subdivision unless a modification or waiver is approved in accordance with the procedures of §§ 154.435 through 154.437. The waiver or modification must be based on at least one of the following findings.
      (1)   An extension would cause or contribute to a safety deficiency that could not be corrected in a practical or economically efficient manner. In these cases, the developer will be responsible for providing sufficient right-of-way and constructing within that right-of-way an approved permanent turnaround at the end of the existing stub street.
      (2)   The street right-of-way in the existing subdivision, although platted, has not had a street constructed within it, is not contained in the County Transportation Framework Plan, and it is unlikely that, in the foreseeable future, a street will be so constructed. In these cases, the developer will not be responsible for providing a permanent turnaround.
      (3)   The existence of significant environmental conditions that were not known or adequately considered at the time the potential extension was platted. The need for the installation of a permanent turnaround by the developer will be determined on a case-by-case basis based on local site conditions.
 
   (H)   In situations where waivers or modification to street connection requirements are granted, an alternative means for bicycle, pedestrian or equestrian access may be required to be provided in close proximity to the otherwise required street based on local site conditions.
   (I)   All subdivisions of 25 or more lots must have at least two means of ingress and egress.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)