Streets within or adjacent to a proposed subdivision shall be classified according to one or more of the classifications noted below, and physical improvements and design standards shall be required in accordance with the fallowing standards.
(A) Right-of-way and pavement width.
Street Type | Minimum Dedicated Right-of-Way Width | Minimum Pavement Width |
Street Type | Minimum Dedicated Right-of-Way Width | Minimum Pavement Width |
Alley | 20 feet | 20 feet |
Arterial street | 80 feet | 44 feet |
Collector street | 60 feet | 36 feet |
Limited access highway | 120 feet | 44 feet |
Marginal access street | 20 feet | 20 feet |
Minor street | 40 feet | 24 feet |
NOTES TO TABLE:
The major street plan may indicate greater right-of-way widths for certain limited access and arterial streets, but in no case shall the subdivider be required to dedicate more than 80 feet for any one street. | ||
(B) Base course. The base course shall consist of dense graded aggregate, as defined in Art. 3.3.2-A of Kentucky Department of Highways Standard Specifications for Road and Bridge Construction, 2007 Edition, as revised and amended. The base course shall be bonded with water and rolled to a smooth surface.
(C) Surface. The surface shall consist of 200 pounds per square yard of State Department of Highways Class I, Type B, bituminous concrete (using P.A.C. 5 or P.A.C. 7 bitumen), as defined in Art. 4.3.4-A-3 of Kentucky Department of Highways Standard Specifications for Road and Bridge Construction, 2007 Edition, as revised and amended, or a comparable surface approved by the Planning Commission.
(D) Drainage. The proposed layout and design of streets and lots within a shall be conductive to proper drainage patterns.
(E) Conformity to major street plan. The location of all streets in a proposed subdivision shall conform in general alignment to the major street plan.
(F) Street continuity. The proposed street layout shall provide for the continuation of existing streets to adjoining tracts, unless the Planning Commission deems such extension undesirable for specific reasons of topography or design. Where it is desirable, in the opinion of the Planning Commission, to provide street access to adjoining property, proposed streets shall be extended by dedication to the boundary of such property.
(G) Relation to topography. Streets shall be designed with respect to topography to produce the most usable and properly situated lots, provide proper drainage for storm water and produce proper grades.
(H) Street names. Proposed streets in alignment with existing streets should bear the name of the existing street. When streets are not in alignment, no names shall be used which would duplicate or be confused with names of existing streets.
(I) Conflicting traffic or land use. When a proposed subdivision contains or is adjacent to existing or proposed railroad right-of-way, other significant rights-of-way or conflicting and detrimental land uses, the Planning Commission may require marginal access streets, reverse frontage lots, lots with rear service alleys, lots with additional depth or other measures which may be necessary for protection of abutting properties and the maintenance or junction of major traffic arteries.
(J) Portions of streets (proposed). New half or partial streets shall not be permitted. The entire minimum right-of-way shall be dedicated when a proposed subdivision is located on one or both sides of a street.
(K) Existing deficient street rights-of-way. Subdivisions platted along existing streets should dedicate additional right-of-way, if necessary, to meet the minimum width requirements specified in these regulations.
(L) Reserve strips and private streets. There shall be no reserve strips or private streets platted within a subdivision.
(M) Oversized improvements. When street rights-of-way or improvements are required in excess of what is necessary to meet the demands of the subdivision under consideration, the Commission should require dedication or improvement costs of the developer only to the extent required by his or her subdivision. The appropriate authorities should be encouraged to finance the acquisition or cost of the additional improvements.
(N) Street intersections. Minimum standards for intersection design are as follows.
(1) Number of approaches. Intersections involving more than four basic street approaches shall be prohibited. Merging lanes, deceleration lanes, “Y” intersections and the like are not in this prohibition and are considered as parts of one-street approach.
(2) Angle of intersection. For a tangent distance of at least 100 feet, measured from the intersection of right-of-way lines, all streets should intersect at an angle of 90 degrees. In no case should the angle of intersection be less than 75 degrees.
(3) Street jogs. Street jogs with centerline offsets of less than 150 feet should not be made.
(4) Excessive grades at intersections. When a street grade at the approach to an intersection exceeds 3%, a leveling area shall be provided with grades of not greater than 3% for a distance of 50 feet from the intersection of street centerlines. Vertical curves shall then be used to connect the intersecting grades.
(O) Minimum property line radii. At street intersections, the minimum radius at property lines shall be 20 feet for all streets.
(Ord. passed 10- -1977; Ord. passed 1-6-1998; Ord. passed 11-12-2001)