[4-20-1976; 2016 Code]
In laying out a subdivision, the subdivider shall comply with
the following general principles and requirements set forth in this
chapter. The subdivision layout shall conform to the Official Map
or Master Plan. Whenever a tract to be subdivided embraces any part
of a highway or thoroughfare, so designated on the map or comprehensive
plan, such part of such public way shall be platted by the subdivider
in locations and at the width indicated on the official map or comprehensive
plan.
[4-20-1976; 2016 Code]
Street rights of way shall be of the following widths:
(A) Highways and primary thoroughfares, not less than 100 feet.
(B) Major thoroughfares, not less than 80 feet.
(C) Collector streets, 66 feet.
(D) Minor streets and dead-end streets, 60 feet. All dead-end streets
shall terminate in a circular turn-around having a minimum right-of-way
diameter of 100 feet and a roadway turn-around of 90 feet in diameter
unless the city plan commission approves a "T" or "Y" shaped paved
space in place of the required turning circle.
(E) Where easements are required for utilities, their width shall be
at least 10 feet along rear or side lot lines.
[4-20-1976; 2016 Code]
Minimum street surface widths of the roadway and graded and
seeded center strips, required to be installed, at the subdivider's
expense, shall be as follows:
Type of Street
|
R.O.W. Width
|
Roadway Width
|
---|
Primary Thoroughfare
|
100'
|
77'
|
Major Thoroughfare
|
80'
|
44'
|
Collector Streets
|
66'
|
40'
|
Minor Streets
|
60'
|
32'
|
Alleys
|
30'
|
24'
|
[4-20-1976; 2016 Code]
The grades of streets shall not exceed the following, except
that where unusual or exceptional conditions exist, the city plan
commission may modify these regulations:
(A) Grades. The grade of major and collector streets shall not exceed
six percent unless necessitated by exceptional topography and approved
by the city plan commission. The grade of all other streets shall
not exceed eight percent. The grade of any street shall in no case
exceed 10 percent or be less than 0.5 percent.
(B) Radii of curvature. A minimum sight distance with clear visibility,
measured along the center line, shall be provided as follows: at least
300 feet on the major streets, 200 feet for collector streets and
100 feet on minor streets. When a continuous street centerline deflects
at any one point more than 10 degrees, a circular curve shall be introduced
having a radius of curvature on said centerline of not less than the
following:
Major Streets: 300 feet.
Collector Streets: 200 feet.
Minor Streets: 100 feet.
(C) Tangents. A tangent at least 100 feet long shall be introduced between
reverse curves on major and collector streets.