(A) Grading specifications. All streets, roads, and alleys shall be graded by the subdivider so that pavements and sidewalks can be constructed on the same level plane. Deviation from this standard due to special topographical conditions will be allowed only with the special approval of the Planning Commission.
(1) Preparation of the subgrade. Before grading is started, the entire right-of-way area shall be first cleared of all tree stumps, roots, brush, and other objectionable materials and of all trees not intended for preservation. The subgrade shall be properly shaped, rolled, and uniformly compacted to conform with the accepted cross-section and grades.
(2) Cuts. In cuts, all tree stumps, boulders, organic material, soft clay, spongy material, and other objectionable material shall be removed to a depth of at least two feet below the natural ground surface. This objectionable matter as well as similar matter from cuts shall be removed from the right-of-way area and disposed of in such a manner that it will not become incorporated in fills or hinder proper operation of the drainage system. The fill material shall be free from trash and other foreign objects.
(B) Minimum base widths. Base widths shall be measured between curbs. Minimum base widths to be provided are:
Arterial streets 40 feet
Collector streets 36 feet
Minor streets
Through streets 28 feet
Local streets (Cul-de-sacs
less than 400 feet with only
single family dwelling units
and loop streets "off collec-
tors less than 2,000 feet
around" with only single
family dwelling units.) 28 feet
Marginal access streets 28 feet
Alleys 20 feet
(C) Cul-de-sac pavement. The base of the turn-around of a cul-de-sac shall have a radius of 40 feet.
(D) Base specifications for streets. The subdivider shall provide street bases with traffic bonded materials six inches thick and the full width of the street bed.
(1) All streets lying within subdivisions located in the corporate city limits shall be paved. These paved streets shall comply with the general requirements as set forth in division (D) (2) below.
(2) If the developer outside the corporate city limits elects to hard surface or pave the streets, such hard surface or pavement shall comply with the base widths as specified above, and shall be designed to carry the expected traffic loads, and shall conform with the Kentucky Department of Highways current standard specifications for portland cement concrete pavement or bitumious concrete pavement.
(E) Curbs and gutters.
(1) Subdivider shall provide curbs and gutters. Curbs and gutters shall be required on each side of the street in all subdivisions that lie within the corporate city limits, and they shall be required in all subdivisions lying in whole, or in part, within one mile of the corporate city limits.
(2) Curb and gutter specifications. Curbs shall not be less than four inches in height and shall be constructed of portland cement concrete. Backfill shall be higher than the curb and shall slope toward the curb in order to insure that surface water drains into the storm drainage system.
(3) Curb and gutter not necessary. The Planning Commission may waive the requirements for curb and gutter in single-family residential developments if they are not deemed necessary for proper drainage and only where all lots are greater than 200 feet in width at the building line.
(4) Requirements when curb and gutters are waived. Drainage ditches shall be constructed within the street right-of-way. The ditches shall be of adequate size to carry the runoff water and to prevent flooding. The Planning Commission may require concrete lined ditches or any other improvements needed to prevent flooding and erosion. The ditch line shall be a distance of ten feet or more from the edge-of-metal on an arterial street. On other streets, the drainage ditch line shall be five feet from the edge-of-metal. The shoulder, ditch, and remaining right-of-way shall be seeded from the edge-of-metal to the right-of-way line.
(Ord. 682, passed 2-22-79) Penalty, see § 155.99