[Amended 3-15-2007 by Ord. No. 2007-05]
In any new subdivision plat or certified survey
map, the street layout shall conform to the arrangement, width and
location indicated on the Official Map or Comprehensive Plan of the
City. In areas for which such plans have not been completed, the street
layout shall recognize the functional classification of the various
types of streets and shall be developed and located in proper relation
to existing and proposed streets, to the topography, to such natural
features as streams and tree growth, to public convenience and safety,
to the proposed use of the land to be served by such streets and to
the most advantageous development of adjoining areas. The subdivision
shall be designed so as to provide each lot with satisfactory access
to a public street. In addition:
A.
Arterial streets. Arterial streets shall be arranged
so as to provide ready access to centers of employment, centers of
governmental activity, community shopping areas, community recreation
and points beyond the boundaries of the community. They shall also
be properly integrated with and related to the existing and proposed
system of arterial streets and highways and shall be, insofar as practicable,
continuous and in alignment with existing or planned streets with
which they are to connect.
B.
Collector streets. Collector streets shall be arranged
so as to provide ready collection of traffic from residential areas
and conveyance of this traffic to the major street and highway system
and shall be properly related to the mass transportation system, to
special traffic generators such as schools, churches and shopping
centers and other concentrations of population and to the major streets
to which they connect.
C.
Local streets. Local streets shall be arranged to
conform to the topography, to discourage use by through traffic, to
permit the design of efficient storm and sanitary sewerage systems
and to require the minimum street area necessary to provide safe and
convenient access to abutting property.
D.
Proposed streets. Proposed streets shall extend to
the boundary lines of the tract being subdivided unless prevented
by topography or other physical conditions or unless, in the opinion
of the Council, such extension is not necessary or desirable for the
coordination of the layout of the subdivision or for the advantageous
development of the adjacent tracts.
E.
Arterial street and highway protection. Whenever the
proposed subdivision contains or is adjacent to an arterial street
or highway, adequate protection of residential properties, limitation
of access and separation of through and local traffic shall be provided
by reversed frontage with screen planting or an earth berm contained
in a nonaccess reservation along the rear or side property line, or
by the use of frontage streets.
F.
Stream or lake shores. Stream or lake shores shall
have a minimum of 60 feet of public access platted to the low-water
mark at intervals of not more than 1/2 mile as required by § 236.16(3),
Wis. Stats.
G.
Reserve strips. Reserve strips shall not be provided
on any plat to control access to streets or alleys, except where control
of such strips is placed with the Council under conditions recommended
by the Plan Commission.
H.
Alleys. Alleys shall be provided in commercial and
industrial areas for off-street loading and service access if required
by the Council but shall not be approved in residential districts.
Dead-end alleys shall not be approved. Alleys shall not connect to
a major thoroughfare.
I.
Street names. Street names shall not duplicate or
be similar to existing street names elsewhere in the City and environs,
and existing street names shall be projected wherever possible.
Whenever the proposed subdivision contains or
is adjacent to a limited access highway or railroad right of way,
the design shall provide the following treatment:
A.
When lots within the proposed subdivision back upon
the right-of-way of an existing or proposed limited access highway
or a railroad, a planting strip at least 30 feet in depth and/or an
earth berm shall be provided adjacent to the highway or railroad in
addition to the normal lot depth. This strip shall be a part of the
platted lots but shall have the following restriction lettered on
the face of the plat: "This strip is reserved for the planting of
trees and shrubs; the building of structures and placement of longitudinal
easements for utilities hereon are prohibited."
B.
Commercial and industrial properties shall have provided,
on each side of the limited access highway or railroad, streets approximately
parallel to and at a suitable distance from such highway or railroad
for the appropriate use of the land between such streets and highway
or railroad, but not less than 150 feet.
C.
Streets parallel to a limited access highway or railroad
right-of-way, when intersecting a high collector street and highway
or collector street which crosses said railroad or highway, shall
be located at a minimum distance of 250 feet from said highway or
railroad right-of-way. Such distance, where desirable and practicable,
shall be determined with due consideration of the minimum distance
required for the future separation of grades by means of appropriate
approach gradients.
D.
Local streets immediately adjacent and parallel to
railroad rights-of-way shall be avoided, and location of local streets
immediately adjacent to high collector streets and highways and to
railroad rights-of-way shall be avoided in residential areas.
[Amended 3-15-2007 by Ord. No. 2007-05; 6-3-2010 by Ord. No. 2010-05]
A.
Street width. The minimum right-of-way and roadway
width of all proposed streets and alleys shall be as specified by
the Comprehensive Plan, the Comprehensive Plan component or the Official
Map of the City, or if no width is specified therein, the minimum
widths shall be as shown in Table 1 below. Cross sections of freeways,
expressways and parkways shall be based upon detailed engineering
studies.
|
TABLE 1
Recommended Minimum Cross Sections
Waterloo, Wisconsin
| |||
|---|---|---|---|
|
System
|
Right-of-Way Width
(feet)
|
Pavement Width
(feet)
| |
|
Arterial
|
80 to 100
|
40 to 44
| |
|
Collector
|
66 to 80
|
36 to 40
| |
|
Local
|
60 to 66
|
32 to 36
| |
|
Alleys
|
24 to 32
|
24 to 32
| |
B.
Alleys; cul-de-sac streets.
(1)
Commercial
and industrial. Alleys shall be provided in all commercial and industrial
districts, except that the Common Council, upon the Plan Commission's
recommendation, may waive this requirement where other definite and
assured provision is made for service access, such as off-street loading
and parking, consistent with and adequate for the uses proposed. The
width of the right-of-way for commercial and industrial alleys shall
be not less than 32 feet. Alleys shall be constructed according to
base and surfacing requirements for streets.
(2)
Dead
end. Dead-end alleys are prohibited except under very unusual circumstances,
and crooked and "T" alleys shall be discouraged. Where dead-end alleys
are unavoidable, they shall be provided with adequate turnaround facilities
at the dead end.
(3)
Cul-de-sac
streets. Cul-de-sac streets designed to have one end permanently closed
shall not exceed 700 feet in length and shall terminate with a turnaround
of not less than 120 feet in diameter and a roadway turnaround of
96 feet in diameter.
C.
Continuation.
Streets shall be laid out to provide for possible continuation wherever
topographic and other physical conditions permit. Provision shall
be made so that all proposed streets shall have a direct connection
with, or be continuous and in line with, existing, planned or platted
streets with which they are to connect. 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 Common Council, upon the recommendation 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. Dead-end
streets not over 500 feet in length will be approved when necessitated
by the topography.
D.
Unless necessitated by exceptional topography subject
to the approval of the Plan Commission, the maximum center-line grade
of any street or public way shall not exceed the following:
E.
Street grades shall be established wherever practicable
so as to avoid excessive grading, the promiscuous removal of ground
cover and tree growth and general leveling of topography. All changes
in street grades shall be connected by vertical curves of a minimum
length equivalent in feet to 15 times the algebraic difference in
the rates of grade for all major streets and 1/2 this minimum for
all other streets.
F.
When a continuous street center line deflects at any
one point by more than 10°, a circular curve shall be introduced
having a radius of curvature on said center line of not less than
the following:
G.
A tangent at least 100 feet in length shall be provided
between reverse curves on arterial and collector streets.
H.
Where, on the date of enactment of this chapter, an
existing dedicated or platted half street is adjacent to the tract
being subdivided, the other half of the street shall be dedicated
by the subdivider. The platting of half streets is not permitted.
Streets shall intersect each other at as nearly
right angles as topography and other limiting factors of good design
permit. In addition:
A.
The number of streets converging at one intersection
shall be reduced to a minimum, preferably not more than two.
B.
The number of intersections along arterial streets
and highways shall be held to a minimum. Wherever practicable, the
distance between such intersections shall not be less than 1,000 feet.
C.
Intersections on local streets shall be off set at
least 125 feet measured from the center lines of the two streets.
D.
Property lines at street intersections shall be rounded
with a minimum radius of 20 feet, or of a greater radius when required
by the Plan Commission, or shall be terminated by a straight line
through the points of tangency of an arc having a radius of 15 feet.
E.
Local streets shall not necessarily continue across
arterial or collector streets, but if the center lines of such local
streets approach the major streets from opposite sides within 300
feet of each other, measured along the center line of the arterial
or collector street, then the location shall be so adjusted that the
adjoinment across the arterial or collector street is continuous and
a jog is avoided.
The widths, lengths and shapes of blocks shall
be suited to the planned use of the land, zoning requirements, need
for convenient access, control and safety of street traffic and the
limitations and opportunities of topography. In addition:
A.
The length of blocks in residential areas shall not,
as a general rule, be less than 400 feet nor more than 1,200 feet
in length unless otherwise dictated by exceptional topography or other
limiting factors of good design.
B.
Pedestrianways are generally not desired and should
be avoided; however, pedestrianways of not less than 10 feet in width
may be required near the center and entirely across any block over
900 feet in length where deemed essential by the Plan Commission to
provide adequate pedestrian circulation or access to schools, parks,
shopping centers, churches or transportation facilities.
C.
The width of blocks shall be wide enough to provide
for two tiers of lots of appropriate depth except where otherwise
required to separate residential development from through traffic.
Width of lots or parcels reserved or laid out for commercial or industrial
use shall be adequate to provide for off-street service and parking
required by the use contemplated and the area zoning restrictions
for such use.
The size, shape and orientation of lots shall
be appropriate for the location of the subdivision and for the type
of development and use contemplated. The lots should be designed to
provide an aesthetically pleasing building site and a proper architectural
setting for the building contemplated. In addition:
A.
Side lot lines shall be at approximately right angles
to straight street lines or radial to curved street lines on which
the lots face. Lot lines shall follow municipal boundary lines rather
than cross them.
B.
Double frontage and reverse frontage lots shall be
prohibited except where necessary to provide separation of residential
development from through traffic or to overcome specific disadvantages
of topography and orientation.
C.
Every lot shall front or abut for a distance of at
least 60 feet on a public street.
D.
Area and dimensions of lots shall conform to the requirements
of the Zoning Code[1] and, in areas not served by public sewers, shall, in addition,
conform to the requirements of Ch. COMM 85, Wis. Adm. Code. Whenever
a tract is subdivided to large parcels, such parcels shall be arranged
and dimensioned as to allow resubdivision of any such parcels into
normal lots in accordance with the provisions of this chapter.
E.
Depth of lots shall be a minimum of 100 feet. Excessive
depth in relation to width shall be avoided, and a proportion of 2:1
shall be considered a desirable ratio under normal conditions. Depth
of lots or parcels reserved or laid out for commercial or industrial
use shall be adequate to provide for off-street service and parking
required by the use contemplated.
F.
Width of lots shall conform to the requirements of
the Zoning Code.
G.
Corner lots shall have an extra width of 10 feet to
permit adequate building setbacks from side streets.
H.
Lands lying between the meander line 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.
Where not controlled by zoning regulations,
building setback lines, appropriate to the location and type of development
contemplated, shall be established as may be required by the Council.
A.
The subdivider or developer shall be responsible for
an acceptable continuous drainageway through the proposed plat as
determined by the City Engineer. The subdivider shall furnish the
Engineer with a plan outlining the proposed drainageways and stormwater
detention facility boundaries and the location of existing drainageways.
Such areas shall be dedicated as easements. Where a natural drainageway
exists which has acceptable hydraulic capacities, including alignment
and grade as determined by the City Engineer, construction will not
be required and the existing natural growth shall be preserved. Where
such natural growth is not preserved by action of the subdivider or
developer or his agents, he shall be responsible for repairing the
disturbed areas by returning them to the original condition by methods
approved by the City Engineer. When it is determined by the Engineer
that the hydraulic capacities, including alignment and grade, are
not acceptable, such alignment, grade and slopes shall be improved
by the subdivider or developer to the cross section specified by the
Engineer.
B.
The subdivider or developer shall install permanent
pipes or culverts at a grade designated by the City Engineer under
all streets crossing a drainageway. Said installation shall be in
accordance with the State Specifications for Road and Bridge Construction.
Culverts required across intersections for temporary street drainage
shall be furnished and installed by the developer. All temporary culverts
installed by the developer shall be completely removed when the streets
are constructed to City standards and the area restored to as nearly
original condition as possible, as determined by the Engineer.
C.
In order to assure proper drainage, the ground elevation
along any lot line common with the boundary of a drainageway shall
be to an elevation established by the City Engineer. All lot grading
and building elevations shall provide for positive drainage. Grading
or filling within a drainageway is prohibited.
