In order to clarify this article, the following definitions
apply:
GRADE
The rate of ascent or descent of a road.
ROADBED
The graded portion of a highway prepared as the foundation
for the pavement structure and shoulders.
The following are the standards set up by the Board of Supervisors
for the construction of the proposed highway in compliance with good
practice, general construction and safety.
A. Highway right-of-way.
(1) The minimum width for any highway right-of-way shall not be less
than 66 feet.
(2) The minimum radius for a cul de sac shall be 60 feet.
(3) At all bend points in the road right-of-way where the tangent deflection
angle is 45° or larger, the tangent shall be connected with a
curve having a minimum length of 300 feet as measured along the center
line. This shall not apply to road intersections.
B. Roadway.
(1) Clearing and grubbing of all trees, stumps and brush shall be extended
five feet beyond the slope intercept of all cut and fill sections.
(2) No trees, stumps, brush, or large rocks shall be disposed of within
the highway right-of-way.
(3) All disturbed areas outside the edge of the gravel shoulders shall
be seeded and mulched to promote a growth of rooted grasses to reduce
the possibility of erosion. Seeding shall be Seed Mixture #2 as specified
in Section 630.2.1.3 of the State of Wisconsin Standard Specifications
for Road and Bridge Construction. The sowing rate shall be two pounds
per 1,000 square feet. Mulching material shall be either straw or
hay which is substantially free of noxious weed seeds. The mulching
material shall be placed to a loose depth of one inch to two inches.
C. Roadbed.
(1) All marsh, swamp, muck and peat material shall be removed from the
area of the proposed roadway to ensure a stable foundation for the
roadway fill.
(2) All excavated, organic materials shall be disposed of either by placing
in six-inch maximum depth layers on the side slopes of all cut or
fill sections, or by disposing off the highway right-of-way.
(3) The roadbed fill shall be free of large rocks, muck, peat, and other
organic material.
(4) Fill material shall consist of sand or gravel and placed in six-inch
lifts and compacted to prevent differential settlement.
(5) Drainage structures of proper size shall be installed to ensure proper
drainage and to prevent the flooding of the roadbed or adjacent property.
(6) The maximum grade on the proposed Town road shall be 8%.
D. Surface course.
(1) Crushed aggregate for the base course shall be placed to a compacted
depth of six inches and shall conform to the requirements of graduation
#2 of Section 304 of the Standard Specifications for Road and Bridge
Construction, State of Wisconsin, Edition of 1975. The crushed aggregate
base course shall be placed to a minimum width of 28 feet. Culs de
sac shall have a gravel base of forty-foot radius.
[Amended 6-7-2006]
(2) Bituminous pavement shall be placed to a compacted depth of 2 1/4
inches and shall conform to gradation #3 of Section 401.2.5 and also
the requirements of Section 406 of the Standard Specifications for
Road and Bridge Construction, State of Wisconsin, Edition of 1981
or 1989. The bituminous material shall be asphalt cement type AC with
a penetration of 120-150. The minimum width shall be 20 feet. Culs
de sac shall have a paved radius of 35 feet.
[Amended 7-14-1993; 6-7-2006]
(3) Bituminous pavement shall not be constructed between October 15th
and May 15th without the prior approval of the Town Board or their
engineering representative.
(4) The roadway shall conform to the attached typical cross section.
E. Inspection. Each phase of the road construction (rough grading, gravel
base, bituminous paving) must be approved by the Town board or the
engineering representatives prior to the commencement of the next
phase of construction.
Upon completion of a roadway to be accepted into the Town roadway
system, the Board of Supervisors shall make a final inspection of
the highway. If, during the inspection, deficiencies are noted in
the construction, such deficiencies must be corrected prior to the
road being accepted by the township. When final acceptance is made,
the owner or owners shall deed to the township the right-of-way necessary
for future maintenance of the roadway, including any wider right-of-way
areas needed for cut and/or fill sections.
Whenever two or more new parcels or condominium units are created
which do not have direct vehicular access to an existing Town road
or county or state highway, said parcels shall be provided access
over a road which meets all of the specifications hereinbefore set
forth, whether such new road is intended to be a public or private
road.
Where any section or part of this section of this article is
amended, voided, or superseded thereby, the remaining sections not
so specifically amended or voided or superseded shall remain in effect.