(A) Plans required. When the subdivider submits the proposed plat for final approval, he shall submit plans and specifications prepared by a registered professional civil engineer showing the proposed street system. Said plans shall show the proposed right-of-way width, pavement width, location and the proposed alignment, grade, geometric details, and cross sections of each proposed street, curbs and gutters (where applicable), and sidewalks. Said plans and specifications shall show for each proposed street, design criteria such as street classification, pavement classification and thickness, and classification and thickness of base and subbase materials. In addition, the following information shall be required:
(1) The plans and profiles of all surrounding streets which are to connect to a street in the proposed subdivision (for a distance of 100 feet back from the boundary line of the proposed subdivision).
(2) All profiles shall be drawn at a scale of:
1 inch = 100 feet horizontal or 1 inch = 50 feet horizontal
1 inch = 10 feet vertical or 1 inch = 5 feet vertical
(3) Elevations shall be shown at all P.I. (s) and percent grade between P.I.
(4) Elevations shall be tied to a bench mark (U.S.G.S. or city bench marks when available), when, within a reasonable distance (as determined by the Planning Commission, or its duly authorized representative) and shall be shown on profiles.
(5) Details of curb and gutter, sidewalks, street section, and paving shall be shown.
(B) Pavement specifications. All streets shall be paved with portland cement concrete or asphalt concrete and constructed in accordance with the specifications in Attachment A or B (whichever is applicable) of these regulations.
(C) Minimum pavement widths. Pavement widths shall be measured from curb face to curb face or if no curbs are required (as provided for in Section 7.3 (D) of these regulations) then measurements shall include the entire paved surface. Minimum pavement widths for each street shall be as shown in Table 2 and laid out in the manner indicated by the typical street cross sections shown in Attachment C, Figures 5 and 6 of these regulations.
TABLE 2
MINIMUM PAVEMENT WIDTHS
MINIMUM PAVEMENT WIDTHS
Type of Street | Minimum Pavement Width (in Feet) | Median Width (in Feet) |
Type of Street | Minimum Pavement Width (in Feet) | Median Width (in Feet) |
Arterial | * | * |
Collector | 38 | -- |
Local | ||
- Residential Area | 28** | -- |
- Commercial and Industrial Areas | 38 | -- |
Residential Frontage Roads | 28 | -- |
Alleys | 10 | -- |
* Arterial streets shall be based on current design standards and other pertinent requirements of the Kentucky Department of Highways. ** Parking shall be limited to one side of the street.
(D) Curbs and gutters. The developer shall construct vertical curbs, at least six inches in height or roll curbs for all residential streets, except in areas zoned to permit single family development on a minimum of one acre lots or greater or any areas zoned for agricultural, conservation, commercial, or industrial purposes, in which case the Planning Commission, or its duly authorized representative, shall determine whether curb and gutter shall be required. If curb and gutter is to be required on commercial or industrial streets, they shall be vertical curbs. All curbs and gutters shall be constructed of portland cement concrete and in accordance with the specifications in Attachment A of these regulations.
(E) Curb radii. The minimum curb radius at intersections shall be as follows:
Type of Street* Intersection | Minimum Curb Radius (in feet) |
Local - Local | 20 |
Local - Collector | 25 |
Collector - Collector | 30 |
Collector - Arterial | 35 |
Arterial - Arterial | 50 |
* In the case of local or collector streets located in commercial or industrial areas, the minimum curb radii shall be increased to 50 feet.
(F) Sidewalks. Sidewalks shall be required on both sides of all local and collector streets in all areas zoned for two- and multi-family development and single-family development requiring 1/2-acre lots or less. The Planning Commission, or its duly authorized representative, shall determine the need for sidewalks (on one or both sides of the street) in all areas zoned to permit single family development at greater than a minimum of 1/2-acre lots or any other zoning (i.e., commercial, industrial, agricultural, or conservation and on all frontage and arterial roads). Sidewalks shall be constructed of portland cement concrete in accordance with the specifications of Attachment A of these regulations, at least five inches thick, where subject to vehicular traffic and four inches thick where not subject to vehicular traffic. All sidewalks shall be constructed with a minimum width of four feet and this width may be increased to five feet for local streets in multi-family residential and commercial and in industrial areas if deemed necessary by the Planning Commission, or its duly authorized representative, and also on collector streets (typical cross sections are shown in Attachment C). Where pedestrian traffic volume indicates the need, the Planning Commission, or its duly authorized representative, may require wider sidewalk widths.
(G) Parking. Parking on any street where pavement width is less than 36 feet shall be limited to one side of the street. Parking lane shall not be shifted from one side to the other from block to block or where the proposed street is the extension of an existing street, parking lane shall extend continuously on the same side of the street. If practicable, the parking lane shall be located on the opposite side of the fire hydrants.
(Ord. 1971-2, passed 4-6-71)