(A) The arrangement, character, extent, width, grade, profile, location, and other specifications of all streets shall conform to adopted standards and policies, and shall be considered in their relation to existing and planned streets, topographic conditions, to public convenience or safety, and in their appropriate relation to the proposed uses of the land to be served by such streets 1 . The minimum street right of way width in the city shall be sixty feet (60') for minor streets, seventy feet (70') for collector streets, and eighty feet (80') for arterial streets, whether public or private. A lesser width for some private streets may be permitted. However, street right of way widths within the impact area shall not be less than seventy feet (70') or as specified by the county. The commission will decide which streets will become arterial or collector after considering adopted master plans, the comprehensive plan, and applicable provisions of this title and title III of this code. The right of way for collector and arterial streets shall not be private property, but must be dedicated; where the actual collector or arterial use of the right of way is in the judgment of the commission not a near-term use, the commission may authorize interim construction as a private roadway without public maintenance for a term not to exceed three (3) years.
(B) All streets and alleys within any subdivision shall be dedicated for public use.
(C) The arrangement of streets in a subdivision shall either:
1. Provide for the continuation or appropriate projection of existing principal streets in surrounding areas; or
2. Conform to a plan for the neighborhood approved or adopted by the council to meet a particular situation where topographic or other conditions make continuance of or conformance to existing streets impracticable.
(D) Where a subdivision abuts or contains an existing or proposed arterial street, the city may require marginal access streets, frontage streets, shared driveways, reverse frontage streets, or similar treatment necessary for adequate protection of residential properties.
(E) Where a subdivision borders on or contains a railroad right of way or limited access highway right of way, the city may require a street approximately parallel to and on each side of such right of way, at a distance suitable for the appropriate use of the intervening land.
(F) Reserve strips controlling access to streets shall be prohibited except where their control is placed in the city under conditions approved by the council.
(G) Street layout shall conform to the most advantageous development of adjoining areas and the entire neighborhood, and shall provide for the following:
1. Adequate access to adjoining lands to facilitate future subdivisions of such land.
2. Appropriate contribution to the incremental creation of a connected network of streets and circulation within the city and impact area.
3. Implementation of the comprehensive plan.
4. Streets intersecting at right angles, or as nearly as possible. Where possible, four-way intersections shall be used.
5. Half streets shall be prohibited, except where essential to the reasonable development of the subdivision in conformity with the other requirements of these regulations and where the council finds it will be practicable to require the dedication of the other half when the adjoining property is subdivided. In all other instances where a half street is adjacent to an undeveloped tract, the other half of the street shall be platted within such tract.
6. No street names shall be used which will duplicate or be confused with the names of existing streets in any town or county area. Street names shall be subject to the approval of the administrator. Street names, where the street continues across an intersection, shall normally be continuous.
7. If street trees are required by the commission to be installed, the minimum standard shall be of two inch (2") caliper, forty feet (40') to sixty feet (60') apart. Trees or shrubs placed within twenty five feet (25') of a street corner shall not obstruct clear vision of and across the corner between three feet (3') and eight feet (8') above the ground level of the traveled way. Tree species are subject to the approval of the city arborist.
8. Cul-de-sacs and other discontinuous streets shall generally be avoided in favor of a connected network.
9. Cul-de-sac streets, designed to be permanent, shall not be longer than nine hundred feet (900') when measured from the intersection line of the cross street to the center of the cul-de-sac, and shall be provided with a turnaround with a right of way diameter of at least one hundred twenty feet (120') and a paved roadway of at least ninety feet (90'). Cul-de-sac streets shall be private streets, to be maintained by the owners of the subdivision. The city may require pedestrian accessways connecting cul-de-sac streets to adjacent streets, rights of way, or open space. (See section 9.6.05 of this title.)
10. Emergency access streets, which are designed to alleviate excessively long cul-de-sac streets (or other conditions), require the approval of the commission and shall be private streets. The minimum right of way shall be forty feet (40').
(H) Property lines at street intersections shall be rounded with a radius of twenty feet (20') or a greater radius where the city may deem it necessary.
(I) Street jogs with centerline offsets of less than one hundred twenty five feet (125') shall be avoided.
(J) A tangent of at least one hundred feet (100') shall be introduced between reverse curves on arterial and collector streets.
(K) Subdivisions or planned unit developments in excess of five (5) acres or twenty five (25) residential units must have at least two (2) points of access to public roads outside the subdivision, if possible, for purposes of public safety and access by emergency vehicles. Where through roads are not possible, the developer shall provide stubbed out roads to the boundary of the subdivision or development at points established by the city. Preferably, the two (2) points of access will be located on opposite, or different, sides of the subdivision.
(L) In the event an existing subdivision has only one point of access to an outside public street, then any future contiguous subdivision, whether by the same developer or a different developer, must provide for at least one additional point of access. (Ord. 822, 2-23-2006, eff. 3-16-2006)
Notes
| 1 | 1. See referenced documents, appendix A, on file in the office of the city clerk. |