[Ord. No. 1007 §16-303.01, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.100), 9-24-2003]
Care shall be exercised in this design and laying out of streets,
lots and other elements that good planning principles are followed,
efficient use is made of land and that natural assets such as trees
and topography be retained wherever practical.
[Ord. No. 1007 §16-303.02, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.110), 9-24-2003]
Subdivision proposals shall be designed to assure that all such proposals are consistent with the need to minimize flood damage, that all public utilities and facilities, such as sewer, gas, electrical and water systems, are located, elevated and constructed to minimize or eliminate flood damage and that adequate drainage is provided so as to reduce exposure to flood hazards. Subdivisions shall be designed in accordance with standards established in Sections 455.270 et seq.
[Ord. No. 1007 §16-303.03, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.120), 9-24-2003]
A.
Provisions
must be made for the extension of any existing dead-end streets. Off-center
street intersections with an offset of less than one hundred fifty
(150) feet between centerlines will not be approved. Streets with
reverse curves must have a tangent-length between curves.
B.
Proposed
streets must conform to existing topography as nearly as possible
in order that drainage problems may be reduced. Surface drainage across
residential lots or along the side or rear lot lines shall be avoided
wherever practical. Where such surface drainage on residential lots
is necessary, easements shall be provided and the City may require
installation of pipe, masonry or rip-rap flumes or such other protective
devices in order that adjacent or surrounding property or the welfare
of the public shall not be endangered and maintenance will be kept
at a minimum.
[Ord. No. 1007 §16-303.04, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.130), 9-24-2003]
The system of streets designated for the subdivision must connect
with any streets already platted to the boundary from abutting subdivisions.
At reasonable intervals, streets must be continued to the boundaries
of the tract subdivided so that future abutting subdivisions may connect
therewith.
[Ord. No. 1007 §16-303.05, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.140), 9-24-2003]
Dead-end streets will not be approved unless such dead-end streets
are provided to connect with future streets in adjacent land, but
cul-de-sacs may be permitted where a vehicular connection is not essential.
Such cul-de-sacs shall provide proper access to all lots and a turnaround
shall be provided at the closed end with an outside street line radius
of at least fifty (50) feet.
[Ord. No. 1007 §16-303.06, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.150), 9-24-2003]
In general, intersecting streets determining block lengths shall
be provided at such intervals as to serve cross traffic adequately
and to meet existing or future streets. Where no existing plats control,
the blocks shall not exceed one thousand five hundred (1,500) feet
in length.
[Ord. No. 1007 §16-303.07, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.160), 9-24-2003]
In blocks where substantial pedestrian traffic may occur such
as adjacent to schools, the Commission may require pedestrian walkways
through blocks. Such walkways shall be ten (10) to fifteen (15) feet
in width, shall be adequately fenced and contain a concrete walk the
enter length. Such walkways shall be dedicated to the public in the
same manner as streets.
[Ord. No. 1007 §16-303.08, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.170), 9-24-2003]
A.
For the
purpose of facilitating the movement of traffic, certain streets are
designated by the City as thoroughfares. A copy of this plan shall
be on file in the office of the Planning Commission and reference
shall be made to this plan before any preliminary subdivision plat
is approved.
C.
Primary Thoroughfares.
1.
Minimum right-of-way width. Eighty (80) feet except that
a ninety (90) foot right-of-way shall be provided for a distance of
three hundred (300) feet from the intersection of the centerline of
two (2) primary thoroughfares.
2.
Maximum gradient. Six percent (6%).
3.
Minimum radii of horizontal curves. Five hundred (500) feet.
4.
Minimum sight distance on vertical curves. Six hundred (600)
feet.
[Ord. No. 1007 §16-303.09, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.180), 9-24-2003]
[Ord. No. 1007 §16-303.10, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.190), 9-24-2003]
A.
The remainder
of the streets in the City shall be classed as local streets and shall
have the following minimum requirements:
1.
Minimum right-of-way width in single-family area. Fifty
(50) feet.
2.
Minimum right-of-way width in multi-family and industrial areas. Sixty (60) feet.
3.
Maximum gradient. Ten percent (10%).
4.
Minimum radii of horizontal curves. Two hundred (200) feet.
5.
Minimum sight distance of vertical curves. Two hundred (200)
feet.
B.
The minimum
gradient on a street shall be one-half of a percent (.5%) except that
the minimum of one-fourth of a percent (.25%) may be permitted by
the City Engineer in unusual cases.
[Ord. No. 1007 §16-303.11, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.200), 9-24-2003]
When a proposed subdivision abuts a thoroughfare or is bounded
by a line that will in the future lie in a thoroughfare or is divided
by a thoroughfare, as shown in the Comprehensive Plan, then the owner
of that subdivision shall dedicate, without charge, any land within
such subdivision that is necessary to provide conformity with the
above standards, such dedication to be shown on the preliminary plat
and final plat.
[Ord. No. 1007 §16-303.12, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.210), 9-24-2003]
[Ord. No. 1007 §16-303.13, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.220), 9-24-2003]
The number of lots facing on collector streets shall be kept
to a minimum in each subdivision. The street pattern shall be so designed
that the side lines of lots abut collector streets wherever land shapes
and topography permit.
[Ord. No. 1007 §16-303.14, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.230), 9-24-2003]
Lots shall not face on major thoroughfares. Residential lots
shall have an average depth of not less than one hundred fifteen (115)
feet.
[Ord. No. 1007 §16-303.15, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.240), 9-24-2003]
Residential lots shall be of a width to conform with the Zoning
Title provided that lots otherwise containing sufficient lot area
as required in the Zoning Title may have a width at the front lot
line of not less than thirty-five (35) feet when such lots front on
a cul-de-sac with a fifty (50) foot radius.
[Ord. No. 1007 §16-303.16, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.250), 9-24-2003]
When development within a subdivision is to proceed under a
planned district as set forth in Districts "RP-1" through "MP-1" in
the Zoning Title, the normal pattern of lots and blocks need not be
included on the plat but any parcels and tracts set aside for such
planned development must be of shape and topographic contour to allow
flexibility of design of the planned development.
[Ord. No. 1007 §16-303.17, 1-24-2001; Ord. No. 1091 §§1 — 3(App. A §455.260), 9-24-2003]
Where one (1) or more entrance or street structures or ornaments
such as monuments, pillars, fences, walls, statuary or other decorative
features are to be installed in a permanent fashion, the location,
size and design shall be included with the street plans submitted
to the City Engineer for approval. This submission shall also include
a copy of the bylaws or other documentation of the association which
will have permanent responsibility for maintenance. Such bylaws or
other documentation shall contain language which will, in the opinion
of the City Engineer, assure proper maintenance of such structures
by such association.
