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The improvement of the subdivision shall conform to the following standards.
(A) Monuments and markers.
(1) Shall be placed so that the center of the pipe or marked point shall coincide exactly with the intersection of lines to be marked, and shall be set so that the top of the monument or marker is level with the finished grade.
(2) Monuments shall be set:
(a) At the intersection of all lines forming angles in the boundary of the subdivision; and
(b) At the intersection of street property lines.
(3) Markers shall be set:
(a) At the beginning and ending of all curves along street property lines;
(b) At all points where lot lines intersect curves, either front or rear;
(c) At all angles in property lines of lots; and
(d) At all other lot corners not established by a monument.
(4) Monuments shall be of stone, pre-cast concrete or concrete, poured in place with minimum dimensions of four inches by four inches by 30 inches. They shall be marked, on top with an iron or copper dowel set flush with the top of the monument or deeply scored on top with a cross; markers shall consist of iron pipes or steel bars at least 30 inches long, and not less than five-eighths inch in diameter.
(1) Streets (and alleys where provided) shall be completed to grade shown on plans, profiles and cross-sections, provided by the subdivider, and prepared by a registered professional engineer or registered land surveyor and approved by the Commission.
(2) The streets shall be graded, surfaced and improved to the dimensions required by such plans, profiles and cross-sections and the work shall be performed in the manner prescribed in Standard Specifications for Road and Bridge Construction and Maintenance (current issue) of the State Highway Commission. References in the following divisions refer to the S.H.C. of I. Standard Specifications.
(3) The street pavement shall be of Portland cement concrete or a flexible pavement, and shall be constructed in accordance with design characteristics at least equal to those given below; except as modified by division (B)(4) below:
Design Characteristics of Street and Alley Pavements
Design Characteristics of Street and Alley Pavements
Portland cement concrete; uniform thickness
Surface - asphaltic concrete Type “B”
Binder - asphaltic concrete or bituminous coated blended aggregate
Base - compacted aggregate or water-bound macadam
Subbase - Type II
Material types as set out in State Highway Commission Specifications. Collector street design to be used on local streets serving industrial or commercial developments
(4) Where arterial and collector streets are located within the subdivision, the subdivider shall construct such street pavement in accordance with the requirements for local streets set forth in division (B)(3) above. For the purpose of constructing arterial and collector street pavements to the design characteristics set forth in division (B)(3) above, the Board is authorized to use funds available for such purposes to participate with the subdivider in the cost of such construction; provided however, that such participation shall be limited to that cost which is additional to the cost of constructing the required local street improvement.
(5) Prior to placing the street and alley surfaces, adequate subsurface drainage for the street shall be provided by the subdivider. Subsurface drainage pipe, when required, shall be coated corrugated pipe of a similar type not less than 12 inches in diameter approved by the Commission. Upon the completion of the street and alley improvements, plans and profiles as built shall be filed with the Commission.
(6) In addition to the above requirements, such streets and alleys, if applicable, shall be paved with concrete or bituminous materials approved by the Superintendent and Town Council before being accepted by the town for maintenance.
(1) The subdivider shall provide the subdivision with a complete sanitary sewer system, which shall connect with an existing approved sanitary sewer outlet, except that when such approved outlet is not available, one of the following methods of sewage disposal shall be used:
(a) A complete sanitary sewer system to convey the sewage to a treatment plant, to be provided by the subdivider in accordance with the minimum requirements of the State Board of Health and/or the State Stream Pollution Control Board; or
(b) A private sewage disposal system on individual lots consisting of a septic tank and tile absorption field or other approved sewage disposal system, when laid out in accordance with the minimum standards of the State Board of Health (refer to Bulletin No. S.E. 8, Septic Tank Sewage Disposal Systems, current issue); provided, however, that a private sewage disposal system on, individual lots consisting of a septic tank and tile absorption field shall not be permitted if the water table is less than 30 inches below the ground surface.
(2) The plans for the installation of a sanitary sewer system shall be provided by the subdivider and approved by the State Board of Health (Refer to Regulation HSE 14, I.S.B.H.). Upon the completion of the sanitary sewer installation, the plans for such system as built shall be filed with the Commission.
(3) In this division (C), and division (D) below, the phrase THE SUBDIVIDER SHALL PROVIDE shall be interpreted to mean that the subdivider shall install the facility referred to, or whenever a private sewage disposal system or an individual water supply is to be provided, that such facilities referred to in these sections shall be installed by the developer of the lots in accordance with these regulations.
(1) The subdivider shall provide the subdivision with a complete water main supply system, which shall be connected to an existing approved municipal or community water supply, except that when such municipal or community water supply is not available, the subdivider shall provide one of the following:
(a) A complete community water supply system to be provided in accordance with the minimum requirements of the State Board of Health;
(b) An individual water supply on each lot in the subdivision in accordance with the minimum requirements of the State Board of Health (Refer to Bulletin No. S.E. 7, Safe Water Supplies, current issue); or
(c) Fire hydrants at street intersections with a maximum spacing of 500 feet.
(2) The plans for the installation of water main supply system shall be provided by the subdivider and approved by the State Board of Health (Refer to Regulation HSE 5, I.S.B.H.). Upon completion of the water supply installation, the plans for such system as built shall be filed with the Commission.
(E) Storm drainage.
(1) The subdivider shall provide the subdivision with an adequate storm water sewer system whenever curb and gutter is installed and whenever the evidence available to the Commission indicates that the natural surface drainage is inadequate. When the surface drainage is adequate, easements for such surface drainage shall be provided. Deep open ditches for drainage are not permitted in the street, but where curb and gutter are not provided, a shallow swale with its low point at least three inches below the elevation of the subgrade of the pavement may be permitted.
(2) In a subdivision where curbs and gutter are not provided, the subdivider shall furnish one of the following types of improvements to facilitate roadside drainage and to assure suitable entrances for private driveways which are proposed to intersect the roadway:
(a) A corrugated iron pipe, at least 12 inches in diameter and 14 feet in length to be placed where required for each driveway; or
(b) A properly dipped or swaled concrete pavement, 14 feet in length, six feet in width and six inches thick, designed so as not to create a hazard to the under parts of automobiles, at the entrance of each driveway.
(F) Curb and gutter.
(1) The Commission shall require curb and gutter to be installed on each side of the street whenever the proposed subdivision contains any lot of less than 16,000 square feet. Any subdivision containing lots of more than 16,000 square feet in area may be required by the Commission to include curb and gutter where deemed necessary by the Commission.
(2) The curb and gutter shall be of the construction type shown in Figure 1, attached to Ord. 3-594, passed 7-7-1993 and shall be constructed according to the following specifications.
(a) The base for the curb and gutter shall be well-compacted on the existing base or grade.
(b) The minimum specifications shall be as shown for the type of cross-section in Figure 1, attached to Ord. 3-594, passed 7-7-1993.
(c) All concrete used in the curb and gutter shall meet the State Highway Specifications for Class D concrete.
(d) Integral or monolithic curb of the same dimensions as shown in Figure 1, attached to Ord. 3-594, passed 7-7-1993 may be built on concrete pavement, provided the pavement widths are maintained as required in this chapter.
(1) The Commission shall require sidewalks on each side of the street whenever the proposed subdivision contains any lot of less than 16,000 square feet. Any subdivision containing lots of more than 16,000 square feet may be required by the Commission to include sidewalks where deemed necessary by the Commission.
(2) When sidewalks are required, they shall be constructed of Portland cement concrete, at least four inches thick, and four feet wide.
(H) Street signs. The subdivision shall provide the subdivision with standard town street signs at the intersection of all streets.
(Ord. 478, passed 5-5-1970; Ord. 93-594, passed 7-7-1993)