All plats and subdivisions must meet the following
requirements:
A. The layout and design of streets, lots and blocks
in subdivisions shall conform to the Grant County Highway Plan.
B. Classification of highways. The public roads, streets
and highways of Grant County are hereby divided into the following
five functional classifications of highways as set forth in the State
Highway Plan. The highways so classified are shown on the Grant County
Highway Plan which is included as a component part of the Grant County
Subdivision Regulations and therefore made a part of the original
copy of this chapter as fully as if set forth at length herein.
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Functional Classification
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Highway Classification
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Class A Highways
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Principal arterial highways for which right-of-way
lines have been officially mapped. Primary arterial highways.
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Class B Highways
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Standard arterial highways. Principal arterial
highways without or prior to having officially mapped right-of-way
lines.
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Class C Highways
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Minor arterial and high collector highways.
All state trunk highways not designated as a Class A or Class B Highway.
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Class D Highways
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Low collector highways and all county trunk
highways not otherwise designated as a Class A, Class B or Class C
Highway.
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Class E Highways
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Local highways, town roads and public roads
and streets other than those listed above.
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The arrangement, character, extent, width, grade
and location of all streets shall conform to all official maps and
may be required to conform to master plans and shall be developed
and located in proper relation to existing and planned streets; topographic
conditions; existing natural features, including streams, lakes and
tree growth; public convenience and safety; existing and proposed
uses of land served by such streets; and to the most advantageous
development of adjoining uses. Specifically all streets shall be designed
in accordance with the following criteria:
Street Design Standards
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Minimum Lot Size
(square feet)
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Minimum Right-of-Way Width
(feet)
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Maximum Grade
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Rural
Local streets
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|
|
|
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Cul-de-sac*
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40,000 or more
|
60
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12%
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|
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20,000 to 40,000
|
60
|
10%
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|
Through
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20,000 or more
|
66
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10%
|
|
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10,000 to 20,000
|
66
|
10%
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Collector
|
10,000 or more
|
100
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8%
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Urban
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Local streets
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|
|
|
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Cul-de-sac*
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Less than 10,000
|
60
|
10%
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Through
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Less than 10,000
|
66
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10%
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Collector
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Less than 10,000
|
70
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8%
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NOTES:
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*These standards apply to cul-de-sac and loop
streets that are projected to serve fewer than 15 dwelling units.
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If Wisconsin Statutes require a larger right-of-way
width for the road or a lesser maximum grade, the road shall meet
said more restrictive statutory requirement.
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A. Alignment.
(1) The arrangement of streets in a subdivision shall
provide, where possible, for the continuation or appropriate projection
of existing or proposed local, collector and arterial streets in the
area. Local streets shall be laid out so as to discourage their use
by through traffic.
(2) Roads and streets in a subdivision shall extend to
the boundaries of the tract or land being subdivided, except where
prevented by topography or other physical condition or determined
to be unnecessary or undesirable for the particular layout of the
subdivision or the orderly development of adjacent tracts of land.
(3) The number of intersections along arterial streets
shall beheld to a minimum. Wherever practicable the distance between
such intersections shall be not less than 1,200 feet.
(4) Street jogs with center-line offsets of less than
150 feet shall be avoided.
(5) A tangent at least 100 feet long shall be introduced
between reverse curves on arterial and collector streets.
(6) Streets shall be laid out so as to intersect as nearly
as possible at right angles, and no street shall intersect any other
street at less than 75°, and not more than two streets shall intersect
at one point. Exceptions may be granted due to steep or unusual terrain
as approved by the County Engineer.
(7) Half streets shall be prohibited except where necessary
for continuity of the street plan in the area.
B. Access.
(1) Local roads or streets in a subdivision shall be designed
to provide suitable access to abutting properties and to discourage
their use by through traffic. Collector roads or streets shall be
provided where anticipated traffic volumes exceed the practical capacity
of such local roads or streets.
(2) Where a subdivision abuts or contains an existing
or planned arterial road, street, or highway, adequate protection
of adjacent properties, access control, and the separation of through
and local traffic shall be provided by reversed frontage with screen
planting in a non-access reservation along the rear property lines
or by the use of frontage roads or streets. Said arterial roads, streets,
or highways shall include all Class A, Class B, and Class C highways
and such other roads, streets, or highways so designated by the highway
agency having jurisdiction thereover.
(3) Where a subdivision borders on or contains a railroad
or limited access highway right-of-way, roads or streets shall be
provided approximately parallel to such right-of-way as necessary
for the appropriate use of the intervening land with due regard for
the requirements of approach grades and future grade separation.
(4) Public alleys may be required to provide off-street
loading and service access to commercial, industrial or institutional
establishments but shall not be approved in residential areas except
where unusual or extraordinary conditions prevail. No such alleys
shall connect to an arterial road or street or terminate without a
suitable turnaround facility.
(5) Reserve strips controlling access to streets shall
be prohibited except where their control is definitely placed in the
Planning and Zoning Committee, under conditions approved by said Planning
and Zoning Committee.
C. Cul-de-sac and dead-end streets.
(1) Culs-de-sac shall not exceed 1,000 feet in length
and shall provide a turnaround with a minimum right-of-way radius
of 55 feet and roadway.
(2) Dead-end streets shall not be permitted without a
suitable turnaround. Appropriate arrangements shall be made for those
parts of temporary turnarounds outside of the street right-of-way
to revert to the abutting property owners at such time as streets
shall be extended.
D. Street names. The name of any subdivision road or
street shall be reviewed and approved or disapproved in accordance
with the following criteria:
(1) No road or street name shall duplicate, or be so similar
to, road or street names in the area as to cause confusion.
(2) Where a road or street maintains the same general
direction or orientation, the existing name and suffix or the same
name and suffix shall continue for the entire length of the road or
street.
(3) The suffix "Boulevard" shall be limited to roads and
streets with divided pavement or the projection or extension of the
same.
(4) The suffix "Circle" or "Court" shall be limited to
roads and streets terminating with a cul-de-sac.
(5) The suffix "Lane" or "Drive" shall be limited to minor
roads and streets not more than one block in length.
(6) The suffix "Parkway" shall be limited to roads and
streets abutting or traversing a park or greenway or watercourse.
All plats and subdivisions must meet the following
requirements:
A. The length, width, and shape of blocks shall be suited
to the planned use of the land, zoning requirements, needs for convenient
access, control and safety of street traffic, and the limitations
and opportunities of topography. Block lengths in residential areas
shall not, as a general rule, be less than 600 feet in length between
street lines unless dictated by exceptional topography or other limiting
factors of good design.
B. Blocks shall have sufficient widths to provide two
tiers of lots of appropriate depth, except where otherwise required
to separate residential development from through traffic.
C. Pedestrianways or crosswalks, not less than 10 feet
in width, shall be provided near the center and entirely across any
block 900 feet or more in length where essential to provide adequate
pedestrian circulation or access to schools, shopping centers, churches,
or transportation facilities.
All plats and subdivisions must meet the following
requirements:
A. The size, shape, and orientation of the lots shall
be appropriate for the location of the subdivision and for the type
of development and use contemplated. All lots shall have an average
width of not less than 30% of their respective average depth.
B. Every lot shall front or abut a public street.
C. Lot width as measured from the building setback line and lot area for residential development shall conform to the requirements of Chapter
315, Zoning, but shall be not less than specified below:
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Subdivision Served by Public Sewer
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Subdivision Not Served by Public Sewer
|
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Minimum Area
(square feet)
|
Minimum Width
(feet)
|
Minimum Area
(square feet)
|
Minimum Width
(feet)
|
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Lots located in shoreland areas
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10,000
|
80
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20,000
|
100
|
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Lots not located in shoreland areas
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8,000
|
70
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20,000
|
100
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D. Side lot lines shall be substantially at right angles
or radial to street lines.
E. In case a parcel is subdivided into smaller parcels,
such parcels shall be arranged as to allow the resubdivision of any
such parcels into normal lots in accordance with the provisions of
this chapter.
F. Lot lines shall follow municipal boundary lines rather
than cross them.
G. Double frontage or reverse frontage lots shall be
avoided except where essential to provide separation of residential
development from traffic arteries or to overcome specific disadvantages
of topography and orientation. A planting screen easement of at least
10 feet shall be provided along the line of lots abutting such a traffic
artery or other disadvantageous use.
H. No lot shall front on the right-of-way of any Class
A Highway, on the right-of-way of any ramp or turning or acceleration
or deceleration lane of any interchange on a Class A Highway, or on
any public road, street or highway intersecting or interchanging with
a Class A Highway within 1,000 feet of such intersection or interchange.
I. Lots requiring direct private access to the right-of-way
of any public road, street or highway shall have a frontage along
such right-of-way of not less than the following minimum distance:
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Minimum Frontage
(feet)
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Functional Classification
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Internal Lot
|
Corner Lot
|
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Class A Highway
|
400
|
450
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Class B Highway
|
200
|
300
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Class C Highway
|
200
|
250
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Class D Highway
|
100
|
150
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Class E Highway
|
70
|
80
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All plats and subdivisions must meet the following
requirements:
A. Utility easements shall be provided where necessary
to service the subdivision in accordance with the recommendations
of the respective utility companies, such easements to be along rear
or side lot lines, with not less than seven feet of such easement
on each side of the particular lot line, except where unusual or extraordinary
conditions prevail.
B. Drainageway easements shall be provided where a subdivision
is traversed by a watercourse, drainageway, channel or stream, except
where a special exception is permitted. Said easements shall be of
such alignment and width to accommodate the anticipated discharge
from the upstream drainage basin with due allowance for the future
development of upstream land.
C. Pedestrianways, including sidewalks and crosswalks,
shall be provided for essential pedestrian circulation, such as access
to schools, shopping centers, churches, and community and transportation
facilities, and across the entire width of any block 800 feet or more
in length, such pedestrianways to be located within a public right-of-way
or within an easement of not less than 10 feet in width.
D. Multipurpose easements for drainageways, pedestrianways
and/or utilities may be provided where the same would satisfy the
requirements heretofore set forth and further the orderly development
of the land being subdivided.
All plats and subdivisions must meet the following
requirements:
A. Public approval. Any part of a street, drainageway
or other public way which is indicated on a comprehensive plan or
plan component or a plat shall conform to the arrangement, width and
location indicated and shall be offered for dedication to the County
or town. The required right-of-way for new public roads, streets,
or highways shall be dedicated to the public. Such dedications must
be approved by the governing body having jurisdiction thereover, and
said body reserves the right to refuse any or all such dedications.
All public ways, easements, reservations, reserve strips, and any
approved names thereof shall be shown on the final plat.
B. Subdivisions abutting on a navigable lake or stream
shall, according to the provisions of § 236.16(3), Wis.
Stats., provide access at least 60 feet wide to the low-water mark
so that there will be public access which is connected to existing
public roads at not more than one-half-mile intervals as measured
along the lake or stream shore, except where greater intervals and
wider access are agreed upon by the Wisconsin Department of Natural
Resources and the Department of Administration, and excluding shore
areas where public parks or open space streets or roads on either
side of a stream are provided.
(1) The Planning and Zoning Committee may require dedications
of access points of greater width or at more frequent intervals at
points designated by it.
(2) The lands lying between the meander line, established
in accordance with § 236.20(2)(g), Wis. Stats., and the
water's edge, and any otherwise unplattable lands which lie between
a proposed subdivision and the water's edge, shall be included as
part of lots, outlots or public dedications in any plat abutting a
lake or stream. This requirement applies not only to lands proposed
to be subdivided but also to all lands under option to the subdivider
or in which he holds any interest and which are contiguous to the
lands proposed to be subdivided and which abut a lake or stream as
provided in § 236.16(4), Wis. Stats.
(3) Reservations, or reserve strips for the control of
access to streets, shall be placed under the control of the governing
body having jurisdiction over such streets. Reservation of land for
public acquisition shall be for a period not to exceed three years.
Land so dedicated or reserved must be shown on the final plat.