13.80.050 General design standards.
In order to assure that appropriate provision is made for the public health, safety, and general welfare, and for such open spaces, drainage ways, streets, alleys, other public ways, water supplies, sanitary wastes, parks, playgrounds, sites for schools and schoolgrounds and that the public use and interest will be served by the platting of such subdivision, all subdivisions and resubdivisions shall meet the following standards and those standards set out in and adopted by City Council ordinance:
(1) Subdivisions Adjoining Different Use Districts. Where residential plats or subdivisions adjoin a use district other than residential, the lots abutting such district shall, where possible, orient their rear lot lines to the district boundary.
When a business, commercial, or manufacturing plat or subdivision adjoins a district authorizing residential uses, the commercial lots abutting residential district boundaries shall orient their rear lot lines to that boundary, and no access shall be permitted through such residential district.
(2) Alleys. Dedication of alleys may be required to provide secondary access where deemed necessary.
(3) Blocks.
(a) Length. Length of blocks shall be consistent with the topography and the needs for convenient access, circulation, control, and safety of street traffic and type of land use proposed. Block lengths shall generally not exceed one thousand feet or be less than four hundred forty feet.
(b) Width. Except for multiple-frontage parcels, the width of blocks shall ordinarily be sufficient to allow for two tiers of lots of depths consistent with the type of land use proposed and zoning district involved.
(c) Pedestrian Walkways. A pedestrian walkway right-of-way not less than ten feet wide may be required approximately at the midpoint of any block exceeding six hundred feet in length, or in any block of lesser length where such a pedestrian walkway is required by the director or City Council to provide circulation or access.
(4) Easements. Easements may be required for the installation, maintenance, and operation of utilities. Easements may be required along the lines of or across lots where necessary for the extension of existing or planned utilities.
(5) Lots. Lot width, area, size, and shape shall conform to the applicable provisions of the Pullman zoning code.
(6) Streets.
(a) Street Design and Orientation. Street design shall be consistent with the city's design standards adopted by ordinance.
(b) Relation to Adjoining Street Systems. The layout of streets shall provide for the continuation of streets existing in adjoining property. The layout shall also provide for future projection of streets.
(c) Intersections. Street intersections shall be as nearly at right angles as is practicable.
(d) Jogs at Intersections. Street jogs with centerline offset of less than one hundred twenty-five feet for access streets and two hundred feet for arterials shall be avoided unless no practical alternatives are available.
(e) Dead-end Streets. For any street temporarily dead-ended, the developer shall provide a temporary turnaround facility as approved by the director.
(f) Cul-de-sacs. Cul-de-sacs shall have a minimum right-of-way radius of fifty feet.
(g) Width. Street right-of-way widths shall meet the following minimum standards.
(i) Major arterial streets: eighty feet;
(ii) Secondary arterial streets: eighty feet;
(iii) Collector arterial streets: sixty feet;
(iv) Access streets: sixty feet;
(v) Cul-de-sac streets: fifty feet.
A street lying along the boundary of a subdivision may be dedicated one-half width when the adjoining property is unsubdivided; and, whenever there exists a dedicated half street of an adjoining plat, the other half shall be dedicated on the proposed plat to make the street complete. (Ord. 81-13 §1, 1981; Ord. 80-42 §6, 1980).