(A) Roads. Proposed roads shall provide a safe, convenient and functional system for vehicular, pedestrian and bicycle circulation, be properly related to the comprehensive plan, and shall be appropriate for the particular traffic characteristics of each proposed development.
(B) Frontage on improved roads. No subdivision shall be approved unless the area to be subdivided shall have frontage on and access from an existing street on the official map.
(C) Grading and improvement plan. Roads shall be graded and improved and conform to the local government construction standards and specifications and shall be approved as to design and specifications by the Local Government Engineer in accordance with the construction plans required to be submitted prior to final plat approval.
(D) Topography and arrangements. Roads shall be related appropriately to the topography. All streets shall be arranged so as to obtain as many building sites as possible at, or above, the grades of the streets. Grades of streets shall conform as closely as possible to the original topography. A combination of steep grades and curves shall be avoided.
(E) Street integration. All streets shall be properly integrated with the existing and proposed system of thoroughfares and dedicated rights-of-way established on the official map and/or master plan.
(F) Relationship to development. All thoroughfares shall be properly related to special traffic generators, such as industries, business districts, schools and churches, to population densities and to the pattern of existing and proposed land uses.
(G) Minor or local streets. Minor or local streets shall be laid out to conform as much as possible to the topography to discourage uses by through traffic, to permit efficient drainage and utility systems and to require the minimum number of streets necessary to provide convenient and safe access to property.
(H) Layout. The rigid rectangular gridiron street pattern need not necessarily be adhered to. The use of curvilinear streets or U-shaped streets shall be encouraged where the use will result in a more desirable layout.
(I) Street extension. Proposed streets shall be extended to the boundary lines of the tract to be subdivided, unless prevented by topography or other physical conditions, unless, in the opinion of the Planning Commission, the extension is not necessary or desirable for the coordination of the layout of the subdivision with the existing layout or the most advantageous future development of adjacent tracts.
(J) Road names. The submitted plat shall not indicate any names for proposed streets. The governing body shall name all streets. Names shall be sufficiently different in sound and spelling from other road names in the city so as not to cause confusion. A road which is, or is planned to be, a continuation of an existing road shall bear the same name.
(K) Road regulatory signs. The applicant shall install the appropriate road signs, as determined by the Local Government Engineer, or shall deposit with the local government an amount of money equal to the local government’s cost of signs and installations at the time of final subdivision approval.
(L) Road surfacing and improvements. After utilities have been installed by the developer, the developer shall construct roads to the widths prescribed in these regulations. All surfacing shall be of a character as is suitable for the expected traffic and in harmony with similar improvements in the surrounding areas. Types of bituminous shall be as determined by the Local Government Engineer. Adequate provision shall be made for culverts, drains and bridges. All road pavement shoulders, drainage improvements and structures, curbs, turnarounds and sidewalks shall conform to all construction standards and specifications adopted by the Planning Commission, Local Government Engineer or governing body and shall be incorporated into the construction plans required to be submitted by the developer for plat approval.
(M) Minimum right-of-way and road widths. See the table below.
Minimum Right-of-Way and Road Widths | ||||
Street Classification | Minimum Width Right-of-Way (ft) | Minimum Driving Width (ft) | Maximum Grade (%) | Minimum Drainage Grade (%) |
Minimum Right-of-Way and Road Widths | ||||
Street Classification | Minimum Width Right-of-Way (ft) | Minimum Driving Width (ft) | Maximum Grade (%) | Minimum Drainage Grade (%) |
Arterial | 100 | 60 | 5 | 0.5 |
Collector | 80 | 44 | 5 | 0.5 |
Local | 66 | 24 | 8 | 0.5 |
Local, limited | 46* | 24 | 8 | 0.5 |
Alley | 20 | 16 | 8 | 0.5 |
*All local-limited streets are required to have a ten-feet utility easement on both sides | ||||
(Ord. 66, passed 10-12-1999)