(A) Specifications for street construction will be as set forth in this chapter. All other sources for street construction shall conform to the Hopkinsville Code of Ordinances. All streets as defined by the Hopkinsville Subdivision Regulations shall be constructed in accordance with the material and design specifications as set forth herein and other requirements which have been duly adopted by Hopkinsville City Council.
(B) A verified statement of any person, firm or corporation who hereafter constructs any street in the city or in any subdivision subject to city regulations showing compliance with the provisions of this section and recommended by the Planning Commission as to the material and design specifications required shall be submitted to Hopkinsville City Council prior to the final approval of any street by the city.
(C) The streets shall also be subject to such further inspection by the city or its agents to include the Planning Commission as Hopkinsville City Council may require before final approval.
(D) Any developer shall provide street pavements which shall be designed to carry the expected traffic loads and which shall conform with KDOT current standard specifications for concrete pavement or for bituminous pavement.
(1) Subgrade. The subgrade shall be constructed in conformance with KDOT Standard Specifications for Road and Bridge Construction. If the compacted subgrade method is used as listed in § 207 then the finished, compacted thickness shall be at least 12 inches thick with a density of 95% as determined by the Method of Test for Moisture-Density Relation of Soils, A.A.S.H.T.O. Destination: T99. The in-place density will be determined by Method of Test for Density of Soil in Place by the Rubber-Balloon Method, ASTM Designation: D2167 or they may be performed by an acceptable Nuclear Density Meter. Tests will be made at such frequency as deemed necessary by the Planning Commission or the Hopkinsville Public Works Department or their duly assigned representatives to assure the entire subgrade is compacted to the specified density. All density testing shall be the responsibility of the developer or contractor under the direction and guidance of the Planning Commission or Hopkinsville Public Works Department.
(a) If alternative subgrades are approved, they shall be constructed to the applicable standards and strengths specified in KDOT Standard Specifications for Road and Bridge Construction.
(b) The subgrade is the foundation upon which the pavement structure is to be constructed. The preparation of the subgrade shall, in addition to compaction include shaping to conform to the required lines, grades and cross-sections, all in accordance with applicable provisions of these regulations.
(2) Dense-graded aggregate base. The base courses shall consist of the required depth (compacted) of graded aggregate and water mix placed on the prepared subgrade and shaped and compacted to the lines, grades and cross-sections shown on the drawings, all in accordance with the regulations set out herein and in the Hopkinsville Subdivision Regulations.
(a) The aggregate shall be crushed limestone meeting the requirements of KDOT Standard Specifications for Road and Bridge Construction (see Division 300), compacted to a density of not less than 95% of solid oven-dry, bulk specific gravity, ASTM C 127, and the dry weight of the aggregate from the test hold. At least one density test shall be made at intervals of 500 feet or less and as many additional tests shall be made as deemed necessary by the Planning Commission or Hopkinsville Public Works Department to determine the extent of any low density sections.
(b) The in-place density will be determined by the Method of Test for Density of Soil in-place by the Rubber Balloon Method, ASTM Designation; C 2167 or an acceptable Nuclear Density meter. The developer/contractor shall provide all necessary labor and equipment for making the test.
(3) Bituminous concrete surface. Bituminous concrete shall be used for surfacing new roads of bituminous construction. Bituminous concrete surface shall conform to the applicable requirements of Division 400 of KDOT Standard Specifications for Road and Bridge Construction to the thicknesses set forth in this section.
(4) Minimum street grade and thickness by classification.
1 | Residential/Commercial | Maximum Grade | DGA Base | Bituminous Concrete Base Course | Bituminous Concrete Surface Course |
2 | Major arterial | 6% | 8" | 3" | 1" |
3 | Minor arterial | 6 - 8% | 8" | 3" | 1" |
4 | Street/local access | 10% | 8" | 3" | 1" |
5 | Street/local access - concrete | 10% | 8" | 6" | |
6 | Minimum cross slope grade for all classifications shall be 1/4" : 1' | ||||
1 | Industrial Classification | Maximum Grade | DGA Base | Bituminous Concrete Base Course | Bituminous Concrete Surface Course |
2 | Minor/major/local street/cul-de-sac | 8 - 10% | 6" | 5" | 1-1/2" |
(5) Alternatives. If an alternative type of surface construction is used, it must first be approved by the Planning Commission or Hopkinsville Public Works Department and be constructed in accordance to the applicable sections of KDOT Standard Specifications for Road and Bridge Construction to a strength equivalent to bituminous concrete method for the same type street.
(6) Minimum pavement widths (in feet). The following pavement widths shall be required.
Improvements | Low Density Residential | Medium Density Residential | High Density Residential | Commercial | Industrial |
Frontage street | 20 w/c* 22 wo/c** plus 4 shoulder | 20 w/c 22 wo/c plus 4 shoulder | 22 w/c 24 wo/c plus 4 - 6 shoulder | 26 w/c 26 wo/c plus 4 - 6 shoulder | 26 w/c 26 wo/c plus 8 shoulder |
Cul-de-sacs/dead ends | 20 w/c 22 wo/c plus 4 - 6 shoulder | 22 w/c 24 wo/c plus 4 - 6 shoulder | 24 w/c 24 wo/c plus 4 - 6 shoulder | 26 w/c 26 wo/c plus 4 - 6 shoulder | 26 w/c 26 wo/c plus 8 shoulder |
Local street | 22 w/c 22 wo/c plus 4 - 6 shoulder | 24 w/c 24 wo/c plus 4 - 6 shoulder | 28 w/c 28 wo/c plus 6 - 8 shoulder | 30 w/c 30 wo/c plus 6 - 8 shoulder | 26 w/c 26 wo/c plus 8 shoulder |
Minor arterial | 26 w/c 28 wo/c plus 6 - 8 shoulder | 28 w/c 30 wo/c plus 8 - 10 shoulder | 30 w/c 32 wo/c plus 10 shoulder | 30 w/c 30 wo/c plus 10 shoulder | 26 w/c 26 wo/c plus 10 shoulder |
Major arterial | 30 w/c 32 wo/c plus 10 shoulder | 32 w/c 34 wo/c plus 10 shoulder | 34 w/c 34 wo/c plus 10 shoulder | 36 w/c 36 wo/c plus 10 shoulder | 26 w/c 26 wo/c plus 10 shoulder |
Notes to table: *w/c - with curb **wo/c - without curb-width of vegetative shoulder | |||||
(Ord. 40-2006, passed 10-17-2006)