A.
General requirements.
1.
Construction standards. All roadway construction and
materials used shall be performed in accordance with the construction
methods as listed in the appropriate sections of the latest edition
of the "State of Wisconsin Department of Transportation Standard Specifications
for Road and Bridge Construction" and its supplements, City specifications,
and this section, whichever is more restrictive. The design requirements
of this section shall be applicable to all streets and roads that
are to be dedicated to the City, regardless of whether such streets
or roads are part of a new subdivision or land division. Design requirements
for the pavement shall be adequate for the zoning and street classification
of the area served by the subject street. A street which divides areas
with different zoning classifications shall be constructed in accordance
with the requirements of the area requiring the higher-quality pavement.
Any variation of this must have prior approval of the City Engineer.
Combination concrete curb and gutter is required on all streets (refer
to the section describing requirements for curbs and gutters). A copy
of all design assumptions and computations on which the proposed design
is based shall be submitted to and approved by the City Engineer.
2.
Project costs. All roadway surveys, dedications, plans
and specifications and construction will be at the expense of the
applicant or applicants. This includes any expense incurred by the
City in the preparation of plans and review and inspection of plans
and construction. The developer shall pay such project costs for streets
37 feet or less in width, back-of-curb to back-of-curb; the City shall
be responsible for additional costs of construction over 37 feet back-of-curb
to back-of-curb for larger streets and bituminous asphalt pavement
over three compacted inches.
3.
Preliminary consultation. Prior to the design, preparation
and construction of any roadway to be dedicated to the City of Onalaska,
the applicant shall notify the City Engineer. An on-site meeting will
then be arranged to be attended by the City Engineer and the applicant.
Plans must be provided in order for the City Engineer to check the
design and the drainage.
4.
Material slips. Copies of material slips for all materials
furnished for the road construction projects shall be delivered to
the City before the City approves the final construction.
5.
Required inspections. Prior to the commencement of any
street construction, the subdivider shall notify the City Engineer
at least one workday in advance as to the nature of the work being
done. The City Engineer shall be contacted for required inspections
after the following phases of construction:
6.
Tests of materials. The City reserves the right to obtain
a sample of the roadway base material prior to placement on the roadway
for purposes of determining whether the material meets gradation and
soundness requirements.
7.
Pavement samples. Samples of bituminous concrete will
be taken by the City during pavement construction operations for purposes
of determining that the material meets specifications.
C.
Street trees. Developer shall provide the City with
a Master Street Tree Plan for review and approval by the City Planning
Department.
D.
Survey monumentation. Before final approval of any plat
or certified survey within the corporate limits of the City, the subdivider
shall install monuments placed in accordance with the requirements
of Ch. 236, Wis. Stats., or as may be required by the City Engineer.
All survey monumentation located adjacent to street or public rights-of-way,
but not located within street pavement, shall be protected with steel
fence posts erected near the survey monumentation. The City Engineer
may waive the placing of monuments for a reasonable time during public
improvement construction on condition that the subdivider executes
a survey to insure the placing of such monuments within the time required.
On behalf of the City, the City Engineer is authorized to accept such
surety bonds and contracts for monumentation in an amount approved
by the City Engineer. Building permits shall not be issued until all
survey monumentation for the block(s) of lots in which the lot(s)
for which building permits are being applied for within the phase
of the land division under development has been installed. When the
land division includes an established 1/2, 1/4, 1/4-1/4, or such other
section monument, the established monument shall be preserved and/or
fully restored by the subdivider at their cost.
E.
Curb and gutter. After the installation of all utility
stormwater drainage improvements, the subdivider shall construct thirty-inch-wide
curbs and gutters in accordance with plans and standard specifications
approved by the City Engineer. The City shall assume the cost of difference
of materials only over 30 inches.
A.
Construction standards. All streets and highways constructed
in the City or to be dedicated to the City shall fully comply with
the following construction standards:
1.
Right-of-way and pavement width. The minimum right-of-way
and roadway width of all proposed streets and alleys shall be as specified
by the Comprehensive Plan, Comprehensive Plan component or Official
Map or, if no width is specified therein, the minimum widths shall
be as specified below. Cross sections for freeways and parkways should
be based upon detailed engineering studies. The Plan Commission may
approve reduced width for right-of-way and pavement where needed for
special zoning districts, such as planned unit developments.
|
Urban Cross Section
| |||
|---|---|---|---|
|
Type of Street
|
Pavement Width ROW Width to be Reserved
(feet)
|
ROW Width To be Dedicated
(feet)
|
Face of Curb to Face of Curb Width
(feet)
|
|
Expressway, primary or standard arterial (limited access) primary
arterial
|
State standard
|
80
|
State standard
|
|
High collector
|
66
|
66
|
State standard
|
|
Low collector
|
66
|
66
|
State standard
|
|
Local
|
66
|
66
|
36
|
|
Cul-de-sac
|
60
|
60
|
36
|
|
Frontage Streets
|
66
|
66
|
30
|
|
Alleys
|
N/A
|
25
|
25
|
|
Pedestrianways
|
10
|
10
|
5
|
|
Rural Cross Section (Extraterritorial Jurisdiction Area)
| |||
|---|---|---|---|
|
Type of Street
|
Pavement Width ROW Width to be Reserved
(feet)
|
ROW Width To be Dedicated
(feet)
|
Face of Curb to Face of Curb Width
|
|
Expressway, primary arterial (limited access) primary arterial
or standard arterial
|
State standard
|
80
|
State standard
|
|
High collector
|
80
|
80
|
State standard
|
|
Low collector or local
|
66
|
66
|
State standard
|
2.
Ditches. Where curb and gutter is not required by the
City for rural cross-section streets, the minimum ditch slope shall
be 0.50%.
3.
Roadway base thickness.
a.
All streets shall have a minimum roadway base thickness of eight
inches of compacted-in-place crushed aggregate base course in areas
of granular soils. In areas of heavy clay soils/hydric or as determined
by City Engineer, all streets shall have a minimum of 18 inches of
breaker rock and four inches of crushed aggregate base course compacted
in place. Crushed rock shall comply with Wisconsin Department of Transportation's
"Standard Specifications for Road and Bridge Construction," latest
edition, as it relates to crushed aggregate base course.
b.
The developer/subdivider shall hire an independent soil testing/pavement
design consultant to recommend adequate pavement design or have such
design approved by the City Engineer. The subdivider/developer is
responsible for all the costs of installing approved pavement design,
with a minimum of eight inches of crushed rock base and 2 1/2
inches of compacted asphalt in granular soils and 18 inches of breaker
rock, four inches in base, and three inches in asphalt in heavy clay
or silty soils/hydrologic.
c.
In the case of commercial, arterial or other heavy-use roads,
the Common Council may, in the alternative to the above standards,
have the City Engineer provide specifications for such roads after
researching the site(s) and conducting a soil and pavement design
analysis.
d.
In any case, the Common Council shall have the sole discretion
in determining the use and construction classification to be adhered
to.
e.
In all cases, the base course shall be compacted to the extent
necessary to produce a condition so that there will be no appreciable
displacement of material laterally and longitudinally under traffic
and shall conform to line, grades and shape shown on the approved
plans, profiles and cross sections.
4.
Roadway subbase. Stable and nonorganic subbase material
is required. Unstable and organic material must be sub-cut, removed
and replaced with a suitable granular or breaker-run material approved
by the City Engineer.
5.
Pavement thickness. Residential streets shall have a
minimum of two-and-one-half-inch-thick compacted bituminous concrete
pavement. On commercial, arterial or other heavy-use streets, there
shall be a minimum of 3 1/2 inches of bituminous concrete pavement,
placed in two layers, a binder course two inches thick and a surface
course of 1 1/2 inches thick. In the case of commercial, arterial
or other heavy-use roads, the Common Council may, in the alternative
to the above standards, have the City Engineer provide specifications
for paving such roads after researching the site(s) and conducting
a pavement and soil analysis. In any case, the Common Council shall
have the sole discretion in determining the use and construction classification
to be adhered to.
6.
Roadway culverts and bridges. Roadway culverts and bridges shall be constructed as directed by the City Engineer and sized utilizing the methods listed in Chapter 13, entitled "Drainage," of the "Facilities Development Manual" of the Wisconsin Department of Transportation. All roadway culverts shall be reinforced concrete with concrete apron endwalls.
7.
Driveway culverts. Driveway culverts shall be sized
by the City Engineer (if appropriate). The culverts shall be placed
in the ditch line at elevations that will assure proper drainage,
and they shall be provided with concrete, metal or landscape timber
endwalls.
8.
Topsoil, grass, seed, fertilizer and mulch. All disturbed
areas (ditches, back slopes) within the road right-of-way not provided
with pavement and shouldering material shall be restored utilizing
six inches of topsoil and good quality grass seed, fertilizer and
mulch. Ditches along the roadway with greater than a 2 1/2% slope
shall be protected by erosion control materials such as hay bales,
sod, erosion control mats, etc. For additional standards, see "City
of Onalaska Erosion Control and Stormwater Management Requirements."[1]
9.
Drainage improvements. In the case of all new roads
and streets, the City Engineer may require that stormwater retention
areas and storm sewers be constructed in order to provide for proper
drainage.
10.
Continuity and transitions.
a.
All street pavement widths on streets continued from previously
developed or platted streets shall, wherever practical, provide for
the greater of either the existing or required pavement type, width,
grade and cross slope.
b.
Where it is necessary to provide for a transition of pavement
width and/or type between new and existing streets, the transition
shall occur in a safe manner at an intersection. In the event a transition
in pavement width cannot safety occur at an intersection, it shall
not occur closer than 250 feet to the intersection of right-of-way
lines. In width transitions, the ratio of the transition length to
width shall not be less than 15:1 unless the City Engineer determines
that special circumstances prevent use of such ratio, in which case
the minimum transition ratio shall be 10:1.
A.
The subdivider shall install streetlights along all streets per City
specifications and approval. In the event the City determines that
it is in the best interests of the health, safety and welfare of the
residents of the City to install streetlights on undeveloped lands
prior to their development, the City shall do so and shall charge
the costs of the same to the developer upon development.
1.
Upon annexation of lands to the City of Onalaska, streetlights shall
be installed per City specifications. Each owner of lands within the
annexed area shall be assessed for the costs of the streetlights.
The amount of the assessment shall be determined on a front footage
basis. The cost per front foot shall be calculated by dividing the
total cost for the street lamps and the installation thereof by the
amount of front footage served by said lights. The assessment per
owner shall then be determined by multiplying the cost per front foot
times the amount of front footage owned.
2.
In determining such assessment, lands on both sides of any street
shall be included.
3.
Provided, however, that in the event lands on only one side of any
street shall be annexed, the assessment for lands within the City
shall be 50% of the assessment as calculated above. Upon subsequent
annexation to the City of any lands for which no streetlight assessment
has previously been paid, the owners of said land shall be assessed
for the cost of streetlights in accordance with this section.
A.
Grading.
1.
With the submittal of the preliminary plat, the subdivider shall
furnish drawings which indicate the existing and proposed grades of
roads, streets and alleys shown on the plat.
2.
Proposed grades will be reviewed by the City Engineer for conformance
with City standards and good engineering practice. Street grades require
the approval of the Common Council after receipt of the City Engineer's
recommendations.
3.
After the installation of temporary block corner monuments by the
subdivider and establishment of street grades according to standards
approved by the governing body, the subdivider shall grade the full
width of the right-of-way of the streets and alleys proposed to be
dedicated, including the vision clearance triangle on corner lots.
4.
In cases where an existing street right-of-way is made a part of
the plat or abuts the plat, the subdivider shall grade that portion
of the right-of-way between the existing pavement and the property
line.
5.
The bed for the roadways in the street rights-of-way shall be graded
to subgrade elevation.
6.
The City Engineer shall approve all grading within rights-of-way
and said grading shall extend for a sufficient distance beyond the
right-of-way to insure that the established grade will be preserved.
7.
Where electric and other communications or utilities facilities are
to be installed underground, the utility easements shall be graded
to within six inches of the final grade by the subdivider; prior to
the installation of such facilities, earth fill piles or mounds of
dirt or construction materials shall not be stored on such easement
areas.
B.
Street construction. After the installation of all utility
and stormwater drainage improvements, the subdivider shall prepare
for surfacing all roadways in streets proposed to be dedicated, to
the widths prescribed by these regulations, by placing crushed rock
on said roadways and, in addition, shall surface said street, in a
manner and quality consistent with plans and specifications approved
by the City Engineer. The subdivider shall surface roadways to the
widths prescribed by City specifications. Construction shall be to
City standard specifications for street improvements.
C.
Street cross sections. When permanent street cross sections
have been approved by the City, the subdivider shall finish grade
all shoulders and road ditches, install all necessary culverts at
intersections and, if required, surface ditch inverts to prevent erosion
and sedimentation in accordance with plans and standard specifications
approved by the City Engineer.
D.
Completion of street and sidewalk construction.
1.
Prior to any occupancy permits being issued on lands adjacent to
streets and/or sidewalks, all street and sidewalk construction shall
be completed by the subdivider/owner, approved by the City Engineer
and accepted by the Common Council.
2.
The Common Council may issue a waiver of these requirements in unusual
or special circumstances such as excessively severe weather conditions,
heavy construction temporarily in area or construction material shortages
(i.e., cement, asphalt). The issuance of a waiver shall be at the
discretion of the Common Council.
3.
The owner requesting a waiver shall do so in writing, presenting
such information and documentation as required by the Common Council.
4.
The waiver shall be in written form and shall detail which improvement
requirements are temporarily waived and for what period of time.
