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(a) Minimum Right-of-Way Widths.
(1) Streets. The minimum right-of-way width for streets in subdivisions shall be 50 feet, except on those streets designated by the Planning Commission as collector streets, the minimum right-of-way width shall be 60 feet.
(2) Alleys. Twenty feet.
(3) Cross-walkways. Ten feet.
(4) Easements. Four feet on each side of the designated centerline or such width as may be required for necessary maintenance of any utility involved.
(5) Cul-de-sacs. All cul-de-sacs shall terminate in a circular area with a minimum radius equal to the right-of-way of the approach street, unless the Planning Commission approves a T or Y type of turning configuration.
(b) Minimum Pavement Widths.
(1) All streets.
A. Twenty-six feet, including curb, except that streets designated as collector streets by the Commission, may be required, upon order of the Commission, to be paved a width of 31 feet, including curbs. In the case of a thoroughfare or important neighborhood street, the matter of additional pavement width shall be discussed with the public officials having jurisdiction, to determine whether or not public expenditures, if any, for such additional width shall be made simultaneously with the developer's improvement.
B. Cul-de-sac streets shall terminate in a paved turnaround. The median strip between the back of curbs and the property line shall be the same as the approach street. If a T- or Y-shaped arrangement is approved by the Commission in lieu of a turn-around, such paved space shall extend the entire width of the street right-of-way and shall be at least one-half the width of the approach street, with flared portions rounded by at least 12-1/2 feet radii.
(2) Alleys. Twenty feet.
(3) Sidewalks. Sidewalks shall be required on both sides of all streets. They shall be concrete, four feet in width and four inches in depth, in accordance with Exhibit III.
(4) Curbs. Roll concrete integral curbs and gutters shall be required on all streets, as specified in Exhibit III following the text of these Subdivision Regulations.
(c) Grades. Current ODOT standards.
(1) At the intersection of two streets, property line corners shall be rounded by an arc of 12-1/2 feet radius.
(2) Street curbs or edges of street pavements shall be rounded by radii of at least 25 feet.
(3) The minimum radii noted above shall be increased when the smallest angle of intersection is less than 60 degrees, or in any case where the Planning Commission considers an increase necessary.
(1) Length. The normal maximum length for blocks shall be 1,800 feet. In a block over 900 feet long, a crosswalk may be required.
(2) Width. The width of a block shall normally be sufficient to allow two tiers of lots of appropriate depth.
(3) Irregular shape. Irregularly shaped blocks (including super blocks), indented by cul-de- sacs, containing interior parks or playgrounds and adequate parking space, shall be acceptable when properly designed and covered by agreements as to maintenance of such park areas.
(4) Orientation on Motor-way. If frontage on a motor-way is involved, the long dimension of the block shall preferably front thereon, in order to create as few intersections as possible with the motor-way.
(1) Size, shape and orientation. The size, shape and orientation of lots shall be appropriate to the location of the proposed subdivision and for the types of development contemplated.
(2) Length and width ratio. Excessive depth in relation to width shall be avoided.
(3) Fronting on motor-ways. Lots fronting on motor-ways should have extra depth and deep setbacks, if topography permits.
(4) Street or right-of-way. Every lot shall abut on a street or other public right-of-way.
(5) Double frontage. Double frontage lots shall be avoided as far as possible.
(6) Side lot lines. Side lines of lots shall be approximately at right angles or radial to the street line, unless, in the opinion of the Planning Commission, a variation from this rule will give a better street and lot plan.
(7) Corner lots. Corner lots shall have an extra width sufficient to allow for building setback lines on both front and side.
(g) Public Open Spaces and Sites. Where, as indicated by the Master Plan, a proposed Subdivision contains, wholly or in part, a proposed public open space or a proposed site for a public building, the Planning Commission will immediately notify the public authority concerned (Council, the Board of County Commissioners, the Park Board, the Board of Education, etc.). If, within 30 days thereafter, the Planning Commission is not advised that such property has been acquired by negotiation and agreement, or within a second period of 30 days after such notification that such authority has commenced the necessary procedure to acquire such property by appropriation, then the Planning Commission will not require that such open space or site be reserved or included in the subdivision plan.
(Ord. 2013-01. Passed 2-5-13.)