§ 16.24

A subdivision plan shall conform to the official plan of streets. In the absence of an official plan of streets and highways, there shall be substantial conformance to the master plan. In the absence of a master plan, the street system in a proposed subdivision shall relate to the existing streets in the area adjoining the subdivision. All existing streets adjacent to a subdivision need not necessarily be carried into a new subdivision.

A.

Freeways, limited access, etc., highways. Freeways, limited-access and unlimited-access state highways shall conform to the standards of the division of highways, department of public works of the state and where the same are involved in any subdivision, they shall be subject to individual determination by the city. Such standards of the division of highways shall be deemed to be the minimum standards that will be acceptable.

B.

Width—Major streets. Major thoroughfares shall be not less than one hundred feet wide.

C.

Same—Secondary streets. Secondary thoroughfares shall be not less than eighty feet wide.

D.

Same—Local collector streets. Local collector streets shall be not less than sixty feet wide.

E.

Minor and cul-de-sac streets. Minor and cul-de-sac streets shall be not less than fifty-two feet wide, nor more than five hundred feet in length, except where special conditions might justify a lesser width or greater length. The radius at the terminus of the cul-de-sac should be not less than fifty feet. Cul-de-sac and minor streets shall be subject to individual determination by the city. Stub streets or rights of way may be required to the edge of the subdivision.

F.

Special local streets. Special local streets where railroads, parkways, grade separations, freeways and hills or other concomitant factors are involved shall be subject to individual determination by the city.

G.

Service roadways. Along major highways, limited-access highways or freeways, a service roadway separated from the traffic roadway by an acceptable separation strip, when indicated by the master or official plan of the city or the state, will be required for access to abutting private property and local streets. All dimensions on such multiple roadway thoroughfares shall be as defined on the city official plan or state division of highway plan.

H.

Curved major highways. Curved major highways shall have a center line radius of not less than one thousand feet.

I.

Curved secondary streets. Curved secondary streets shall have a center line radius of not less than five hundred feet. Lesser radii may be used if evidence indicates the above requirements are not practicable.

J.

Miscellaneous curved streets. Curves or other streets shall have a center line radius of not less than two hundred feet. Lesser radii may be used if evidence indicates the above requirements are not practicable.

K.

Street corners. Street corners shall have a radius of not less than ten feet or an equivalent angle.

L.

Street intersections. Street intersections shall be as near right angles as practicable. In no case shall the angle be less than forty-five degrees.

M.

Street continuations. Streets which are a continuation of streets in contiguous territory shall be so aligned as to assure that their center lines shall coincide. In cases where straight continuations are not physically possible, such center line shall be continued by curves.

(Code 1965, § 22-3.)

16.24.020 - Use of tangents.

Suitable tangents, when possible, shall be used between all curves in streets or highways within a subdivision.

(Code 1965, § 22-4.)

Any street grade in a subdivision greater than six per cent shall be subject in each case to review. Grades of more than ten per cent may be cause for disapproval of a map submitted under this chapter.

(Code 1965, § 22-5.)

16.24.040 - Alleys.

A.

Alleys in subdivisions shall be not less than twenty feet wide and shall be provided at the rear of all lots classified for and to be used for commercial or multiple-family purposes. If adequate off-street parking areas to serve such property are securely reserved for such purpose and are shown upon the map and approved by the city in the manner provided in this chapter, this requirement may be modified alleys elsewhere shall be optional, but if offered shall be subject to approval by the city if the official plan indicates alleys which are not required by the general rule then the alley thus shown shall be required.

B.

Alleys at the rear of business, industrial or unlimited multiple-residential property shall be subject to determination by the city as to design, location and possible increased width.

C.

Alleys shall be required at the rear of all property fronting directly upon any major highway.

D.

Where two alleys intercept or intersect, the corners shall be cut either on a twenty-foot radius to which the lot boundaries are tangent or on a straight line connecting points on both lot lines fifteen feet distant from the corner of the lot at the intersection of the alleys.

(Code 1965, § 22-6.)

16.24.050 - Blocks.

A.

Blocks in subdivisions which are less than three hundred thirty feet in length, or more than nine hundred ninety feet in length, may be cause for disapproval of the proposed subdivision, but in no case shall a block be longer than thirteen hundred twenty feet.

B.

In blocks nine hundred ninety feet long or over pedestrian ways at least ten feet wide may be required.

C.

Long blocks are desirable adjacent to main thoroughfares in order to reduce the number of intersections.

(Code 1965, § 22-7.)

A.

Lot areas in subdivisions shall be such as will conform to the standards of development as defined by the Zoning Ordinance* or by other official plans adopted pursuant to law.

B.

Lots having no frontage on a public street may be cause for disapproval of the proposed subdivision.

C.

The width of lots shall be such as will conform to standards of development as defined by the Zoning Ordinance or other official plans adopted pursuant to law; provided, that the minimum width of interior lots shall be sixty feet, and corner lots shall have a minimum width of seventy feet. Odd-shaped lots shall be subject to individual determination by the city.

D.

No lot shall be divided by a county, city, school district or other taxing district boundary line.

E.

The side lines of lots shall be approximately at right angles to the street line on straight streets or to the tangent on curved streets.

F.

Double frontage lots should be avoided.

G.

Corner lots shall have a width sufficient to permit adequate side yards.

(Code 1965, § 22-8.)

• See Title 17 of this volume.

In areas where no official plans exist, the layout of all improvements including roadways, curbs, parkways, dividing strips, sidewalks, sewer lines and water mains within the right of way of all highways, streets, alleys and utility easements shall be in accordance with standards established by the city council and where no such standards have been adopted the arrangements shall be subject to approval by the city.

(Code 1965, § 22-9.)

16.24.080 - Layout of sidewalks.

All subdivision projects shall be required to install sidewalks in accordance with Section 12.16.020 of this Code.

(Code 1965, § 22-9.1.)

Chapter 16.28 - IMPROVEMENTS