§ 105-102. Streets.

Streets shall conform to at least all minimum requirements of the general specifications and typical cross sections as set forth in this division and other conditions set forth by the city council.

(1)

Location and arrangement.

a.

Local residential streets shall be laid out to conform as much as possible to the topography, to discourage use by through traffic, to permit efficient drainage and utility systems, and to require the minimum number of streets necessary to provide convenient and safe access to property.

b.

The proposed subdivision shall conform to the various elements of the master land use plan and shall be considered in relation to the existing and planned major streets, and such parts shall be platted and the location and width indicated on such plan.

c.

The street layout shall provide for the continuation of streets in the adjoining subdivisions or of the proper projection of streets when adjoining property is not subdivided.

d.

Should any proposed subdivision border on or contain an existing or proposed major street, the council may require marginal access streets, reverse frontage, or such other treatment as may be necessary for adequate protection for residential properties and to afford separation and reduction of traffic hazards.

e.

Should a proposed subdivision border on or contain a railroad, expressway, or other limited access highway right-of-way, the council may require the location of streets approximately parallel to and on each side of such right-of-way at a distance suitable for the development of an appropriate use of the intervening land such as for parks in residential districts. Such distances shall be determined with due consideration of the minimum distance required for approach grades to future grade separation.

f.

Half streets and dead end streets shall be prohibited, except where absolutely essential to the reasonable development of the subdivision in conformity with the other requirements of this article, and where the council finds unique circumstances under which a half street or dead end street should be allowed.

(2)

Street right-of-way widths. Street right-of-way widths shall conform to at least the following requirements:

Street type	Right-of-way widths (feet)
Major streets	100
Local streets	66
Industrial and commercial service streets	66
Boulevard streets	86
Alleys	24
Cul-de-sac streets	86

 

(3)

Grades.

a.

For adequate drainage, street grades shall be as follows:

i.	Bituminous paving with rural landscapes	Minimum: 0.2 percent
		Maximum: 6.0 percent
ii.	Bituminous paving with concrete curb and gutter	Minimum: 0.2 percent
		Maximum: 6.0 percent
iii.	Concrete paving with rural landscapes	Minimum: 0.2 percent
		Maximum: 6.0 percent
iv.	Concrete paving with curb and gutter	Minimum: 0.2 percent
		Maximum: 6.0 percent

 

b.

Maximum grades for public walkways shall not be greater than ten percent.

c.

The city council may make an exception to these standards on the recommendation of the city engineer.

(4)

Street geometrics. Standards for maximum and minimum street grades, vertical and horizontal street curves and sight distances shall be established by ordinance or published rules of the city council.

(5)

Street intersections. Streets shall be laid out so as to intersect as nearly as possible to 90 degrees. Curved streets intersecting with major thoroughfares and collector thoroughfares shall do so with a tangent section of centerline 50 feet in length, measured from the right-of-way line of the major or collector thoroughfare.

(6)

Grading and centerline gradients. Grading and centerline gradients shall be per plans and profiles approved by the city engineer.

(7)

Street jogs. Street jogs with centerline offsets of less than 125 feet shall be prohibited.

(Ord. No. 266, § 3.1, 10-10-1995)