Streets shall conform to all minimum requirements of the general specifications of this subchapter and shall conform to the book of standards of the city and the City Planning Commission.
(A) Layout. The layout of a proposed street shall provide for the continuation of existing streets in surrounding areas and/or shall conform to a plan for the neighborhood approved by the Planning Commission in cases where topographical or other natural or unnatural conditions precluded the continuation of existing streets. Such streets shall be of width as great as that of the street so extended. Local residential streets shall be laid out as to discourage their use by through traffic.
(B) Major thoroughfares. When a subdivision abuts or contains an existing or proposed major thoroughfare, the Planning Commission may require marginal access streets, reverse frontage or such other treatment as may be necessary for adequate protection of residential properties and to afford separation and reduction of traffic hazards.
(C) Private streets and alleys. Private streets and alleys shall be prohibited unless located at the rear of commercial or industrial uses.
(D) Access to property. Each residential lot within a subdivision shall be provided with a satisfactory means of access. Building permits shall not be issued for the construction of buildings which do not have access on a public street. There shall be no reserve strips controlling access to a street except where the control of such streets is definitely dedicated to the city.
(E) Intersections. Intersecting streets shall be laid out so that the intersection angle is as nearly as possible to 90 degrees. Streets converging at one point shall be reduced to the least practicable number.
(F) Dead-end streets. When adjoining an area not platted, the arrangements of streets in new subdivisions shall be extended to the boundary lines of the tract to make provision for the future projection of streets into adjacent areas. A one-foot public reserve may be required to be placed between stub streets and subdivision boundaries.
(G) Street names. Street names shall not be permitted which might cause confusion for purposes of assessing, mail delivery, or locating by the public with names of existing streets in or near the city. Streets that will be continuations of existing streets shall be called by the same names of such existing streets.
(H) Building lines and setback lines. Building lines and setback lines shall conform to the requirements of the zoning ordinance.
(I) Street alignment.
(1) Minimum horizontal centerline radii of curvature shall be:
(a) Major thoroughfares 700 feet radius
(b) Collector streets 450 feet radius
(c) A minimum 50-foot tangent shall be introduced between reverse curves on local streets, 100 feet on major thoroughfares, except that upon recommendation of the City Engineer an exception may be granted by the City Council.
(2) Visibility requirements.
(a) Minimum vertical visibility (measured from 4 feet eye level to 18-inch tail light) shall be:
1. 500 feet on major thoroughfares
2. 300 feet on secondary streets or collector streets
3. 200 feet on local streets
4. 100 feet on all other streets
(b) Upon recommendation of the City Engineer.
(3) Street jogs. Street jogs with centerline offsets of less than 150 feet shall be avoided.
(4) Intersection. Curved streets intersecting with major or secondary thoroughfares shall do so with a tangent section of centerline 100 feet in length measured from the right-of-way to a major or collection thoroughfare and at 90 degrees except that upon recommendation of the City Engineer, an exception may be granted by the City Council.
(J) Surface drainage. Adequate and safe disposal of all yard drainage shall be provided in accordance with specifications prescribed by the City Engineer. Modification of surface and subsurface drainage systems may be requested by the City Engineer within the maintenance period.
(K) Street right-of-way widths.
(1) Street right-of-way widths shall conform to the following minimum requirements:
Major thoroughfares 120 feet
Collector streets 86 feet
Industrial, commercial and multi-family 86 feet
Local residential streets 60 feet
Marginal access streets 60 feet
Alleys 20 feet
(2) Maximum length of the approach street to a residential and industrial cul-de-sac shall not exceed 300 feet and shall terminate in a circle 150 feet in diameter. Use of cul-de-sac streets will be discouraged unless essential for development.
(Ord. 115, passed 8-13-75) Penalty, see § 153.99