In laying out a subdivision, the owner shall conform to the provisions
of Ch. 236, Wis. Stats., and all applicable ordinances of the Village. In
all cases where the requirements of this chapter are different from the requirements
of Ch. 236, the more restrictive provision shall apply.
A.
Streets shall be provided for convenient access to all
parcels of land to be created by the subdivision. All streets shall be dedicated
to the public, unless in areas outside the corporate limits the town board
will permit private streets. Design of private streets shall be in full conformity
with this chapter.
B.
The layout of streets shall conform to the Official Map
and Comprehensive Plan.
C.
In areas not covered by the Official Map or Comprehensive
Plan, the layout of streets shall conform to the plan for the most advantageous
development of adjoining areas of the neighborhood. Streets shall be designed
and located in relation to existing and officially planned streets, topography
and natural terrain, streams and lakes, and existing tree growth, public convenience
and safety, and in their appropriate relation to the proposed use of land
to be served by such streets.
D.
In general streets shall be laid out in a grid-type pattern
to the greatest extent possible. Culs-de-sac shall be avoided except in areas
where, in the opinion of the Plan Commission, the shape of the parcel to be
subdivided does not lend itself to the use of through streets.
E.
Streets shall be classified as indicated in this subsection.
(1)
Arterial streets are those streets which have the greatest
importance to the development of the Village and which have a width of right-of-way
as shown on the Official Map or of not less than 100 feet for a median-divided
roadway nor less than 80 feet for a single roadway. The exact physical width
of an arterial street will be determined by the Village Engineer based on
street location and anticipated traffic patterns.[1]
(2)
Collector streets are streets of somewhat less importance
than major thoroughfares and which have a right-of-way width as shown on the
Official Map of not less than 66 feet. Collector streets are the standard
Village street and shall have a width of 36 feet from back of curb to back
of curb.[2]
(3)
Minor streets are streets designed primarily for access
to abutting property and which have a right-of-way width of not less than
60 feet and culs-de-sac not more than 600 feet long that may have a right-of-way
width of not less than 60 feet and must be provided with a turnaround at the
dead end of not less than 120 feet in diameter. The width of a minor street
may be less than the standard for collector streets subject to the approval
of the Village Engineer but in no cases shall be less than 28 feet from back
of curb to back of curb.
F.
Proposed streets shall be extended to the boundary lines
of the tract to be subdivided, unless prevented by topography or other physical
conditions, or unless in the opinion of the Plan Commission such extension
is not necessary or desirable for the coordination of the layout of the subdivision
with existing layout or the most advantageous future development of adjacent
tracts. Temporary turnarounds may be required where the street ends at the
boundary of a subdivision.
G.
The grade of arterial streets shall not exceed 6% unless
necessitated by exceptional topography and approved by the Plan Commission.
Grades of collector streets shall not exceed 10%. The minimum grade of all
streets shall be 4/10 of 1%.
H.
A minimum sight distance with clear visibility, measured
along the center line, shall be provided of at least 500 feet on arterial
streets, 200 feet on collector streets, and 120 feet on all other streets.
I.
All changes in street grades shall be connected by vertical
curves of a minimum length in feet equivalent to 30 times the algebraic difference
in grade for arterial streets and 20 times this algebraic difference for all
other streets.
J.
A tangent of at least 100 feet long shall be introduced
between reverse curves and between curves and a street intersection on arterial
and collector streets.
K.
New street names shall not duplicate the names of existing
streets, but streets that are continuations of others already in existence
and named shall bear the names of the existing streets.
L.
Reserve strips controlling access to streets shall not
be permitted unless this control is definitely placed with the Village under
conditions approved by the Plan Commission.
M.
Where a half street is adjacent to the subdivision, the
other half street shall be dedicated by the subdivider.
N.
Intersections.
(1)
Property lines at street intersections of arterial streets
shall be rounded with a radius of 15 feet or of a greater radius where the
Plan Commission considers it necessary.
(2)
Street jogs with center-line offsets of less than 125
feet shall be avoided. Where streets intersect arterial streets, their alignment
shall be continuous.
A.
The length, width and shape of blocks shall be such as
are appropriate to the locality and the type of development contemplated,
but block length in residential areas shall not exceed 1,500 feet nor have
less than sufficient width to provide for two tiers of lots of appropriate
depth between street lines. As a general rule, blocks shall not be less than
600 feet in length.
B.
Pedestrian pathways, not less than 10 feet wide, may
be required by the Plan Commission through the center of a block more than
900 feet long where deemed essential to provide circulation or access to schools,
playgrounds, shopping centers, transportation and other community facilities.
C.
General considerations with regard to lots are as follows:
(1)
Size, shape and orientation of lots shall be appropriate for the location of the subdivision and for the type of development contemplated, provided that no residential lot shall be smaller in area than the minimum lot size for the appropriate zone as established by Chapter 365, Zoning, of this Code.
(2)
Lot dimensions shall conform to the requirements of Chapter 365, Zoning, but in no case shall have a frontage of less than 50 feet at the building line or a depth of less than 100 feet.
(3)
Depth and width of properties reserved or laid out for commercial or industrial purposes shall be adequate to provide for the off-street service and parking facilities required by the type of use and development contemplated, as required by Chapter 365, Zoning.
(4)
Residential lots fronting on arterial streets and highways
shall be platted with extra depth or designed to alleviate the effect of major
street traffic on residential occupancy.
D.
Corner lots for residential use shall have extra width to permit building setback from both streets, as required by Chapter 365, Zoning.
E.
Every lot shall abut or face a public street. Lots outside
the corporate limits may abut or face a private street, if permitted by the
town board.
F.
Butt lots will be permitted by the Plan Commission only
in exceptional cases.
G.
Side lot lines shall be substantially at right angles
to or radial to abutting street lines.
H.
In case a tract is divided into parcels of more than 1 1/2 acres in area, such parcels shall be so arranged to permit redividing into parcels in accordance with this chapter and with Chapter 365, Zoning.
I.
Double frontage and reversed frontage lots shall be avoided
except where necessary to provide separation of residential development from
traffic arteries or to overcome specific disadvantages of topography and orientation.
A.
B.
Areas to be filled shall also include all street rights-of-way
and other appropriate areas, such as park and open space lands, so that they
bear a reasonable relationship to adjoining properties.
A.
The following goals and objectives shall apply to stormwater
management:
(1)
To prevent significant loss of life and property due
to runoff from any foreseeable rainfall event.
(2)
To encourage the design of system which minimizes potential
erosion and sedimentation problems.
(3)
To maintain the water quality of the rivers, lakes, streams
and ponds.
(4)
To encourage the design of systems which respond to the
need to maintain or enhance groundwater resources, including groundwater quality,
except where land stability might be impaired.
(5)
To encourage the design of systems which will reduce
capital and environmental costs to the community.
B.
The proposed development shall not increase stormwater
runoff (peak) from that which would have resulted from the same storm occurring
over the site with the land in its natural undeveloped state, for storms of
a twenty-four-hour duration and all reoccurrence intervals of less than or
equal to 100 years. "Land in its natural undeveloped state" shall mean land
which has runoff characteristics equivalent to runoff curve numbers (CN) of
30, 58, 71 and 78 for Hydrologic Soil Groups A, B, C and D, respectively.
C.
Determination of storm volumes shall be computed by established
procedures equivalent to and calibrated against that procedure promulgated
by the United States Soil Conservation Service in its National Engineering
Handbook or the technical publication titled "Urban Hydrology for Small Watersheds,
TR-55" and accepted by the Village Engineer.
D.
Stormwater peaks and volumes shall be addressed either
through on-site detention, retention, infiltration, or a combination. It is
the intent of these provisions to encourage on-site detention and infiltration
to the greatest extent possible.
A.
Adequate easements shall be provided and dedicated on
each side of all rear lot lines, and on side lot lines, and along front lot
lines where necessary, for the installation of storm and sanitary sewers,
gas, water mains, electric lines, telephone and cable television communication
lines.
B.
Easements for electric lines, telephone, gas and cable
television communication lines shall be noted as "Utility Easements" on the
final plat or certified survey map.
C.
All easements for storm and sanitary sewers, water mains,
pedestrian walks and other public purposes shall be noted on the final plat
or certified survey as "Public Easement for" followed by reference to the
use or uses for which they were intended.
D.
Where a subdivision is traversed by a watercourse, drainageway,
channel, or stream:
(1)
There shall be provided a stormwater easement or drainage
right-of-way conforming substantially to the lines of such watercourse and
such further width or construction, or both, as will be adequate for the purpose
and as may be necessary to comply with this section; or
(2)
The watercourse, drainageway, channel, or stream may
be relocated in such a manner that the maintenance of adequate drainage will
be assured and the same provided with a stormwater easement or drainage right-of-way
conforming to the lines of the relocated watercourse and such further width
or construction, or both, as will be adequate for the purpose and may be necessary
to comply with this chapter.
E.
Wherever possible, it is desirable that drainage be maintained
by an open channel with landscaped banks and adequate width for maximum potential
volume of flow. In all cases, such watercourse shall be of a minimum width
established at the high-water mark or, in the absence of such specification,
not less than 30 feet.
