(A) Streets (and alleys, where provided), shall be competed to grades shown on plans, profiles and cross-sections, provided by the subdivider, and prepared by a registered professional engineer and approved by the Commission.
(B) (1) The streets shall be graded, surfaced and improved to the dimensions required by the cross-section and the work shall be performed in the manner prescribed in the latest issue of "Standard Specifications for Road and Bridge Construction" of the State Highway Commission of Indiana. Streets shall be surfaced to the following minimum widths:
(a) The width of standard pavements (which shall include curbing) required is 31 feet; and
(b) Alleys shall be surfaced to a minimum width of 16 feet. Cul-de-sac turn-arounds shall be paved to within 5 feet of the right-of-way.
(2) In a subdivision proposed to contain lots having a minimum area of less than 20,000 square feet, or in a subdivision proposed to have streets which are extensions of existing paved streets, the streets shall be surfaced with portland cement concrete or a flexible pavement, and constructed in accordance with design characteristics at least equal to those given below.
(3) In a subdivision proposed to contain lots having a minimum area of 20,000 square feet, the streets shall be surfaced with a minimum of 9 inches of compacted aggregate laid on prepared subgrade constructed in accordance with "Section C-9 Compacted Aggregate Base" in the latest issue of "Standard Specifications for Road and Bridge Construction" of the State Highway Commission of Indiana.
Design Characteristics of Street Pavement
| |||
Kind of Pavement
|
Type of Street
| ||
Arterial | Feeder | Residential and Alley | |
Design Characteristics of Street Pavement
| |||
Kind of Pavement
|
Type of Street
| ||
Arterial | Feeder | Residential and Alley | |
Concrete | |||
Balanced design thickness* | 9 x 6 x 9 inches | 8 x 5-1/2 x 8 inches | 7-1/2 x 5 x 7-1/2 inches |
Uniform design thickness | 70-1/4 inches | 6-1/2 inches | 6 inches |
*Intersections to be of uniform design using edge thickness. | |||
Kind of Pavement | Arterial | Feeder | Residential and Alley |
Flexible** | |||
Asphaltic surface course | 3 inches | 2 inches | 1 inch |
Base: Bituminous coated aggregate | 4 inches | 3 inches | 3 inches |
Sub-base: | |||
Compacted aggregate | 7 inches | 6 inches | 6 inches |
Total thickness | 14 inches | 11 inches | 10 inches |
**For intersections and parking strips on residential streets, use feeder street design characteristics. | |||
(C) Prior to the construction of street or alley surfaces and pavements, adequate drainage facilities shall be installed by the subdivider, according to plans furnished by the subdivider, prepared by a registered professional engineer or a registered land surveyor and approved by the Commission.
(D) (1) A storm drainage analysis based on a 5-year, 1-hour rainfall shall be used as the basis for the drainage system. A copy of the analysis is to be submitted to the Commission with the drainage facility plans.
(2) Pipe used for drainage shall be of coated corrugated metal, concrete or vitrified clay of an approved design and of size and strength to meet the requirements of the specific conditions which may be encountered.
(E) Minimum diameters of pipe to be used shall be as follows:
(1) Roadway cross-drains-12 inches;
(2) Entrance culverts-12 inches; and
(3) Perforated under-drains-8 inches.
(F) On completion of the street improvements, a minimum of 2 sets of as-built plans and profiles shall be filed with the Commission.
(1982 Code, § 154.27) (Ord. 19-1964, passed - -)