[Adopted 3-13-2006 by Ord. No. 06-3]
The developer or owner desiring acceptance of a road by the
Town shall first submit detailed construction plans prepared by a
competent registered professional engineer. All roadway design, site
grading and stormwater management facilities shall be shown on the
plans and are subject to the approval of the Town Engineer and the
Waukesha County and State of Wisconsin reviewing authorities. All
approvals shall be obtained prior to proceeding with any grading.
Before any road or street is approved, the applicant/developer
shall enter into a development agreement with the Town wherein the
applicant agrees to construct the road or street in accordance with
the approved plans within a certain time frame as mutually agreed
upon between the applicant/developer and the Town Board. At the time
the development agreement is executed, the applicant/developer shall
file a letter of credit or cash financial guarantee in a form acceptable
to the Town Attorney in an amount equal to 115% of the estimated cost
of the required improvements as submitted by the applicant/developer
and approved by the Town Engineer. Upon the Town Board accepting the
road a minimum of 15% of the total cost of constructing the road shall
be kept for a period of at least one year to ensure the quality of
the road is in compliance with the Town road standards.
All roadways shall be constructed according to the typical sections
and details as depicted in Exhibits A through D attached hereto.[1] Road center-line gradients shall not be less than 0.6%
nor greater than 10% unless approved by the Town Board. Ditch depths
and gradients shall be designed to accommodate placement of driveway
culverts such that the crown of the culverts is at least eight inches
below the finished elevation of the adjacent edge of roadway pavement.
Profiles for roadway ditches shall be shown on the construction plans.
Unless otherwise approved by the Town Engineer, back slopes for roadway
ditches shall extend at least to a point with an elevation equal to
that of the adjacent edge of pavement. If these points are located
outside the limits of roadway right-of-way, permanent drainage easements
encompassing these points shall be placed on the final plat.
[1]
Editor's Note: Exhibits A through D are included as attachments to this chapter.
Culs-de-sac shall have a right-of-way with a minimum radius
of 66 feet at the turnaround and shall be constructed in accordance
with Exhibit D. Unless otherwise approved by the Town Board, temporary
culs-de-sac shall be constructed in accordance with Exhibit D and
appropriate easements shall be provided on lands beyond the limits
of the street right-of-way. When the lands to be developed adjoin
a temporary cul-de-sac, it shall be the responsibility of the future
developer of the adjacent lands to remove it and restore the area
to create a continuous roadway. All streets designed to have one end
closed, whether temporarily or permanently, shall terminate in a circular
turnaround having a minimum right-of-way radius of 66 feet. Notwithstanding
the foregoing, a temporary "T" intersection 33 feet in width and 33
feet in length abutting the right-of-way lines of the access street
on each side may be approved by the governing body if the governing
body finds that the temporary cul-de-sac does not serve more than
one parcel on each side of the street that the temporary cul-de-sac
ends (Exhibit D).
Topsoil, mucky soil, peat and other unstable material shall
be removed below the subgrade of roads and replaced with suitable,
sound fill materials as required by the Town Engineer.
Side slopes shall be covered with a minimum of four inches of
topsoil, prepared, seeded or sodded, fertilized, stabilized, watered
and maintained for a sufficient period to provide adequate grass cover
prior to acceptance by the Town Board. Unless otherwise provided by
the Town, all slopes steeper than three horizontal to one vertical
shall be sodded and/or stabilized by methods approved by the Town
and Waukesha County.
The following procedures, checks, and certifications for road
and ditch construction are required by the Town Engineer:
A.
Subgrade construction. The owner's engineer is to provide stakes
that indicate the subgrade elevation of the center line of the roadway
at one-hundred-foot intervals, or at 50 feet within a vertical curve.
Once the contractor has constructed the subgrade, the developer's
engineer is to certify that the subgrade is constructed to within
0.1 foot of design elevation. Under supervision of the Town Engineer,
the contractor will conduct a "proof roll" of the subgrade. Any areas
requiring repairs will not have to be recertified unless recertification
is deemed to be necessary by the Town Engineer. However, if there
is a significant time period or severe weather conditions between
the initial proof roll and base course construction, the Town Engineer
may require an additional proof roll of the subgrade.
B.
Base course construction. The owner's engineer is to provide stakes that indicate the finished aggregate base elevation at the center line and edges of pavement at the intervals noted in Subsection A. Once the contractor has installed the base course material, the developer's engineer is to certify the base course grade (to within 0.1 foot) and crown. The engineer will also certify that the base course depth is per plan requirements. Under supervision of the Town Engineer, the contractor will proof roll the base course. Any areas requiring repairs will not have to be recertified, unless recertification is deemed to be necessary by the Town Engineer. The Town Engineer may require an additional proof roll of the base course if there is a significant time period or severe weather conditions between the initial base course proof roll and installation of the binder lift of asphalt.
C.
Ditch grade certification. Prior to installation of the binder course
of asphalt (and prior to installing topsoil in the ditches), the developer's
engineer will survey the elevations of the ditches and culvert inverts
and will submit an as-built drawing of surveyed grades to the Town
Engineer for his/her review. Ditches will be surveyed at one-hundred-foot
intervals and 50 feet in vertical curves and in areas where the ditch
slope is less than 1%.
D.
Paving asphalt binder course and installation of curb and gutter.
(1)
The developer shall submit to the Town Engineer the paving contractor's
asphalt mix design. No construction of the roadways may commence unless
and until the paving contractor's asphalt mix design has been approved
by the Town Engineer. The Town Engineer will perform construction
observation of curb and gutter installation and paving and must be
notified at least 48 hours prior to commencement of construction.
The paving contractor shall submit asphalt weight tickets to the Town
Engineer.
(2)
Subsequent to paving, the Town Engineer will check shouldering to
ensure it is of uniform and required width and thickness.
E.
Paving asphalt surface course.
(1)
Prior to installation of the surface course of asphalt, the developer/paving
contractor will provide the Town Engineer with 10 days' notice of
when he intends to install the surface lift of asphalt. The Town Engineer
will inspect the site and mark areas of asphalt binder and curb and
gutter requiring repair prior to installation of the surface course
of asphalt. The Town Engineer will notify the developer's contractor
prior to said inspection to afford him the opportunity to be present
at the inspection. The Town Engineer will perform construction observation
during paving operations and must be notified at least 48 hours prior
to commencement of construction. The paving contractor shall submit
asphalt weight tickets to the Town Engineer.
(2)
Subsequent to paving, the Town Engineer will check shouldering to
ensure it is of uniform and required width and thickness.
Metal end sections shall be installed at each end of all culverts
as directed by the Town Public Works Superintendent or Town Engineer.
Special Town Board approval must be obtained for any alternate culvert
end treatment.
All construction shall comply with the Standard Specifications
for Road and Bridge Construction of the State of Wisconsin, current
edition. Concrete curb, when applicable, shall be placed and backfilled
prior to placement of bituminous concrete. Such bituminous concrete
pavement, concrete curb and gutter, and shouldering shall be completed
to the satisfaction of the Town Engineer and/or Town Public Works
Superintendent and at no cost to the Town.
All roads in the Town shall be constructed in accordance with
the appropriate standard cross section which is attached hereto as
Exhibit A, B, or C and made part of this article. All permanent culs-de-sac
constructed in the Town shall be constructed in accordance with the
standard design that is attached hereto as Exhibit D and made part
of this article.[1]
[1]
Editor's Note: Exhibits A through D are included as attachments to this chapter.
Before final acceptance of a Town road, the developer must furnish
sufficient proof to the Town Board, as the Town may require, that
said developer has paid for all costs for road construction.
All street signs shall be obtained and placed by the Town, unless
the applicant/developer receives special permission from the Town
Board to install a specific type, style, or design of a distinct sign.
The material and installation costs for said signs shall be paid by
the applicant/developer.
Culvert posts shall be required at the ends of all culverts
crossing roadways. The posts shall be marker posts prepared and installed
per the state specifications. These posts shall be furnished and installed
by the applicant/developer and located as directed by the Town Public
Works Superintendent. Guardrails, if required by the Town Engineer,
shall be furnished and installed by the applicant/developer at his/her
expense.
All public highways are to be cleaned of dirt and debris by
those persons who are responsible for depositing this dirt or debris
within an elapsed time period of 24 hours.
Any costs incurred by the Town Board for administrative, engineering,
planning and/or legal fees as a result of the review of the construction
plans or the inspection of the improvements are to be paid by the
applicant/developer prior to acceptance of the road(s) by the Town
Board.
