Westover City Zoning Code
ARTICLE 1377
Street Design Standards
1377.01 PURPOSE.
The subdivision shall conform to standards that will result in a well-planned community, protect the health and safety of the residents, and provide a desirable living environment without unnecessarily adding to the development costs. The following improvements shall be required: streets and circulation, off-street parking, water supply, sanitary sewers, and storm water management. (Ord. 468. Passed 6-17-19.)
1377.02 GENERAL DESIGN OF STREETS.
(a) The arrangement, character, extent, width, grade and location of all streets shall be considered in their relation to existing and planned streets, to topographical conditions, to public convenience and safety, and in their appropriate relations to the proposed uses of the land to be served by such streets.
(b) Conformity to Planned Public Way. Whenever a tract of land included within any proposed subdivision embraces any part of a planned public way, shown on plans which have been adopted by the proper authority, such part of the proposed public way shall be platted by the subdivider in the location and the width indicated by the plan.
(c) Storm Drainage. Adequate storm drainage shall be required, as per standards established by the City and the Morgantown Utility Board. The standards shall control the design and construction of storm drainage facilities so that acceptable storm water flow and minimum acceptable runoff qualities are achieved by the subdivider.
(d) Classification of Streets. Street which may be classified by definition under two or more street types shall conform to the higher requirements. Marginal access streets shall conform to the regulations for the purpose they serve, i.e., residential street or business street.
(e) Street and Subdivision Names. The proposed name of the subdivision and the proposed street names shall not duplicate or too closely approximate the name of any other subdivision or street in the area covered by this Chapter. Proposed streets which are obviously in alignment with existing streets or are an extension of an existing street shall bear the name of the existing street. All street names shall be subject to approval by the Planning Commission.
(f) Subdivision Containing or Abutting Major Street or Railroad Right of Way.
(1) Where a subdivision abuts or contains an existing or proposed major street, the Planning Commission may require marginal access streets, reverse frontage with screen planting contained in a non-access reservation along the rear property line, deep lots with rear service lanes, or such other treatment as may be necessary for adequate protection of residential properties and to afford separation of through and local traffic.
(2) Where a subdivision borders on or contains a railroad right of way, the Commission may require a street approximately parallel to and on each side of such right of way, at a distance suitable for the appropriate use of the intervening land, as for park purposes in residential streets, or for the business or industry in the appropriate districts; such distances shall also be determined with due regard for the requirements of approach grades and future grade separations.
(g) Half Streets. Streets within a proposed subdivision shall be designed where possible to allow fora through connection to a future subdivision on adjacent property or to future phases of the same subdivision. These shall be known s half streets and shall be designed with temporary T-turnarounds at their ends. The turnaround shall be removed and a permanent through street created when the adjoining property is subdivided and where a half street is contiguous to a previously platted half street. Half streets shall be shown on the final plat.
(h) Street Center Line Offsets. Street jogs with center-line offsets of less than 125 feet shall not be allowed.
(i) Tangents Between Reverse Curves. A tangent at least 100 feet shall be introduced between reverse curves on major and collector streets.
(j) Street Intersections.
(1) Three-way street intersections should be utilized, using four-way intersections only when absolutely necessary.
(2) Flat grade within and fifty to one hundred feet each way from the street intersection is preferred but over seven percent (7%) grade is not acceptable.
(3) Right angle street intersections are preferred, but no intersection shall be at an angle of less than seventy-five degrees or more than one hundred fifteen degrees. The curb radius for residential and commercial streets shall be twenty feet. The curb radius for a collector street intersecting a major street shall be fifty feet.
(4) A clear sight triangle shall be provided at all street intersections. Within such triangle no vision-obstructing objects shall be permitted which exceed a height of twenty-four inches above the elevation of the abutting streets.
(5) such sight triangles shall be established from a distance of:
A. One hundred feet from point of intersection of the street center lines for major streets;
B. Seventy-five feet from point of intersection of the street center lines for collector streets;
C. Fifty feet from the point of intersection of the street center lines for all other streets.
(k) Residential Streets to Discourage Through Traffic. Residential streets shall be so laid out that their use by through traffic will be discouraged.
(l) Street Grading. All streets shall be graded to their full right-of-way width so as to provide adequate shoulders and pedestrian walkways. All streets shall be paved, and drainage courses, sidewalks and other structures installed according to City standards. Driveways shall meet the sidewalk grade at the property line.
(m) Street Installation Responsibility. The subdivider shall be responsible for the cost and installation of the road foundation and paving necessary to meet the requirements of this Chapter.
(Ord. 468. Passed 6-17-19.)
1377.03 SPECIFIC STREET DESIGN STANDARDS.
(a) Major Street. The design standards of a major street shall be as follows:
(1) Right-of-way minimum width shall be eighty feet.
(2) Paving width minimum width shall be forty-eight feet.
(3) The standard City curb is required except in the case of limited access major streets.
(4) Sidewalk minimum width of six feet abutting the right-of-way line is required except in the case of limited access major streets.
(5) Sight distance minimum of 400 feet.
(6) Vertical alignment. The desirable maximum grade shall be six percent (6%) and the maximum grade shall be ten percent (10%).
(7) Horizontal curvature. The minimum radius of curvature shall be 500 feet.
(b) Collector Street. The design standards of a collector street shall be as follows:
(1) Right-of-way minimum width shall be fifty feet.
(2) Paving width minimum width shall be thirty-eight feet.
(3) The standard City curb is required.
(4) Sidewalk minimum width of five feet abutting the right-of-way line.
(5) Sight distance minimum of 300 feet.
(6) Vertical alignment. The desirable maximum grade shall be ten percent (10%) and the maximum grade shall be fifteen percent (15%).
(7) Horizontal curvature. The minimum radius of curvature shall be 300 feet.
(c) Business Street. The design standards of a business street shall be as follows:
(1) Right-of-way minimum width shall be sixty feet.
(2) Paving width minimum width shall be thirty-eight feet.
(3) The standard City curb is required.
(4) Sidewalk minimum width of eight feet abutting the right-of-way lane.
(5) Vertical alignment. The desirable maximum grade shall be ten percent (10%) and the maximum grade shall be fifteen percent (15%).
(6) Horizontal curvature. The minimum radius of curvature shall be 300 feet.
(d) Residential street Serving One and Two-Family Dwellings.
(1) The design standards of a residential street serving single and two-family dwellings where one parking space per dwelling unit is provided, except row housing, shall be as follows:
A. Right-of-way minimum width shall be forty feet.
B. Paving width minimum width shall be twenty-eight feet.
C. The standard City curb is required.
D. Sight distance minimum of 200 feet.
E. Vertical alignment. The maximum grade shall be eighteen percent (18%).
F. Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(2) If two off-street parking spaces are provided for each dwelling unit, the following design standards shall govern:
A. Right-of-way minimum width shall be thirty-five feet.
B. Paving width minimum width shall be twenty-two feet.
C. The standard City curb is required.
D. Sight distance minimum of 200 feet.
E. Vertical alignment. The maximum grade shall be eighteen percent (18%).
F. Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(3) The Planning Commission may require sidewalks on residential streets in a proposed one- and two-family subdivision where:
A. A proposed street pavement width is greater than twenty-eight feet; or
B. A proposed street has a sight distance less than 400 feet; or
C. A proposed street grade exceeds twelve percent (12%); or
D. A proposed street has a radius of the horizontal curvature less than 200 feet; or
E. The proposed lot frontages are less than eighty feet; or
F. A proposed street acts as a collector for two or more streets; or
G. Land and adjacent land uses are such that a estimated pedestrian count of 150 or more per day will result on any of the proposed streets; or
H. A proposed street acts as major route to schools, parks, playgrounds or a substantial commercial area.
I. Where a sidewalk is required, it shall have a minimum width of four feet.
J. Under unusual conditions, the Commission may make variances in these criterial so that their intent is complied with and public safety provided for. The burden of proof in such cases rests with the subdivider.
(c) Residential Street Serving Row and Multi-Family Dwellings.
(1) The design standards of a residential street serving row and multi-family dwellings shall be as follows, where one parking space per dwelling unit is provided:
A. Right-of-way minimum width shall be sixty feet.
B. Paving width minimum width shall be thirty-six feet.
C. The standard City curb is required.
D. Sidewalk minimum width four feet abutting the right-of-way lines.
E. Sight distance minimum of 200 feet.
F. Vertical alignment. The maximum grade shall be eighteen percent (18%).
G. Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(2) If two off-street parking spaces are provided for each dwelling unit, the following design standards shall govern:
A. Right-of-way minimum width shall be fifty feet.
B. Paving width minimum width shall be twenty-eight feet.
C. The standard City curb is required.
D. Sidewalk minimum width four feet abutting the right-of-way lines.
E. Sight distance minimum of 200 feet.
F. Vertical alignment. The maximum grade shall be eighteen percent (18%).
G. Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(f) Cul-De-Sac Residential Street. The design standards of a cul-de-sac residential street shall be as follows:
(1) Right-of-way minimum width shall be thirty feet.
(2) Paving width minimum width shall be twenty-two feet.
(3) The standard City curb is required.
(4) Sidewalk shall not be required.
(5) Sight distance minimum of 200 feet.
(6) Vertical alignment. The maximum grade shall be eighteen percent (18%).
(7) Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(8) The turning circle shall have a minimum outside radius of thirty-five feet with a minimum paving width of eighteen feet and a minimum outside paving of thirty feet.
(g) Lane. The design standards of a lane be as follows:
(1) Right-of-way minimum width shall be twenty feet.
(2) Paving width minimum width shall be eighteen feet.
(3) Curbs shall not be required.
(4) Sidewalks shall be prohibited.
(5) Sight distance minimum of 100 feet.
(6) Vertical alignment. The maximum grade shall be eighteen percent (18%).
(7) Horizontal curvature. The minimum radius of curvature shall be 100 feet.
(Ord. 468. Passed 6-17-19.)