This chapter is enacted to create regulations to protect the
continued eligibility of the Lower St. Croix River for inclusion in
the National Wild and Scenic River System and to guarantee the protection
of the wild, scenic, and recreational qualities of the river for present
and future generations. These rules are intended to reduce the adverse
effects of overcrowding and poorly planned shoreline and bluff area
development, to preserve and maintain the scenic beauty of the shoreland
and bluffs above the river, to prevent pollution and the contamination
of surface and groundwaters and soil erosion, to provide sufficient
space on lots for sanitary facilities, to minimize flood damage, to
maintain property values, and to preserve and maintain the exceptional
scenic, cultural and natural characteristics of the water and related
land of the Lower St. Croix Riverway in a manner consistent with the
National Wild and Scenic Rivers Act (P.L. 90-542), the federal Lower
St. Croix River Act of 1972 (P.L. 92-560) and the Wisconsin Lower
St. Croix River Act (§ 30.27, Wis. Stats.).
This chapter is enacted under the authority and requirement
of W.S.A. § 30.27, and § NR 118.09(1) and 118.02(3),
Wis. Adm. Code.
As used in this chapter, the following terms shall have the
meanings indicated:
ACCESSORY STRUCTURE
A subordinate structure, the use of which is incidental to,
and customarily found in connection with, the principal structure
or use of the property. Accessory structures include, but are not
limited to, detached garages, sheds, barns, gazebos, patios, decks
(both detached and attached), swimming pools, hot tubs, fences, retaining
walls, driveways, parking lots, sidewalks, detached stairways, and
lifts.
ACCESSORY USE
A use subordinate to and serving the principal use on the
same lot and customarily incidental thereto.
AGRICULTURE
Beekeeping; livestock grazing; orchards; raising of grain,
grass or seed crops; raising of fruits, nuts or berries; placing land
in federal programs in return for payments in kind; owning land, at
least 35 acres of which is enrolled in the conservation reserve program
under 16 USC §§ 3831 to 3836; and vegetable raising.
ANTENNA
Any device or equipment used for the transmission or reception
of electromagnetic waves, which may include an omnidirectional antenna
(rod), a directional antenna (panel) or a parabolic antenna (disc).
BED-AND-BREAKFAST OPERATION
A place of lodging for transient guests that is the owner's
personal residence, that is occupied by the owner at the time of rental,
and in which the only meal served to guests is breakfast.
BLUFFLINE
A line along the top of the slope preservation zone.
BUILDING LINE
A line measured across the width of a lot at that point where
the principal structure is placed in accordance with setback provisions.
CAMOUFLAGE DESIGN
A wireless communication service facility that is disguised,
hidden, or screened, but remains recognizable as a tower or antenna.
COMPLIANT BUILDING LOCATION
An area on a lot where a building could be located in compliance
with all applicable ordinance requirements.
CONDITIONAL USE
A use that is specifically listed in a local zoning ordinance
as either a conditional use or special exception and that may only
be permitted if the local zoning authority determines that the conditions
specified in the ordinance for that use are satisfied.
DEPARTMENT
The Wisconsin Department of Natural Resources.
DISABLED
Having a physical or mental impairment that substantially
limits one or more major life activities.
EARTH-TONE
Colors that harmonize with the natural surroundings on the
site during leaf-on conditions.
EXPANSION
An addition to an existing structure regardless of whether
the addition is vertical or horizontal or both.
FOOTPRINT
The land area covered by a structure at ground level, measured
on a horizontal plane. The footprint of a residence includes attached
garages and porches, but excludes decks, patios, carports, and roof
overhangs.
FOUNDATION
The underlying base of a building or other structure, including
but not limited to pillars, footings, and concrete and masonry walls.
HISTORIC DISTRICT
An area designated by the Common Council, on recommendation
of the Plan Commission, that contains historic buildings, improvements,
or sites.
HISTORIC SITE
Any parcel of land of historic significance due to a substantial
value in tracing the history or prehistory of man, or upon which an
historic event has occurred, and which has been designated as an historic
site under this chapter, or an improvement parcel, or part thereof,
on which is situated an historic structure and any abutting improvement
parcel, or part thereof, used as and constituting part of the premises
on which the historic structure is situated.
HISTORIC STRUCTURE
Any improvement which has a special character or special
historic interest or value as part of the development, heritage or
cultural characteristics of Hudson, the state or nation and which
has been designated as an historic structure pursuant to the provisions
of this chapter.
HUMAN HABITATION
The use of a building or other structure for human occupancy,
including but not limited to cooking, eating, bathing, and sleeping.
IMPROVEMENT
Any building, structure, place, work of art or other object
constituting a physical betterment of real property or any part of
such betterment, including streets, alleys, sidewalks, curbs, lighting
fixtures, signs and the like.
LAND DIVISION
Any division of a parcel of land by the owner or the owner's
agent, for the purpose of transfer of ownership or building development,
which creates one or more parcels or building sites of 20 acres or
less.
LANDSCAPE ARCHITECT
A person who has graduated with a major in landscape architecture
from a college accredited by the American Society of Landscape Architects.
LIFT
A mechanical device, either temporary or permanent, containing
a mobile open-top car including hand or guard rails, a track upon
which the open-top car moves, and a mechanical device to provide power
to the open-top car.
LOCAL ZONING ORDINANCE
Any county, town, city or village zoning ordinance, portion
of an ordinance, or amendments thereto, adopted by a local jurisdiction,
with authority from state enabling legislation, which regulates the
use of land within the Lower St. Croix riverway.
LOT
A contiguous parcel of land with described boundaries.
MANAGEMENT ZONES
The Lower St. Croix riverway management zones established
in § NR 118.04, Wis. Adm. Code.
MITIGATION
Action taken to minimize the adverse impacts of development.
The term "mitigation" includes, but is not limited to, the installation
of vegetative buffers, the removal of nonconforming structures from
the shoreland setback area, and the implementation of best management
practices for erosion control and stormwater management.
NET PROJECT AREA
Developable land area minus slope preservation zones, floodplains,
road rights-of-way and wetlands.
NONCONFORMING STRUCTURE
A building or other structure whose location, dimensions
or other physical characteristics do not conform to the standards
in the current local zoning ordinance, but which was legally constructed
or placed in its current location prior to the adoption of the ordinance
or ordinance amendment that made it nonconforming.
NONCONFORMING USE
The use of land, a structure, or other premises that does
not conform to the land use restrictions in the current local zoning
ordinance, but which was legally established prior to the adoption
of the ordinance or ordinance amendment that made it nonconforming.
NOXIOUS WEEDS
Noxious weeds include those species designated by W.S.A.
§ 66.96(2), and any other such weeds as the City of Hudson
or the St. Croix County Board of Supervisors by ordinance or resolution
declares to be noxious within its respective boundaries.
ORDINARY HIGH WATER MARK
Has been defined by the Wisconsin Supreme Court to mean the
point on the bank or shore up to which the presence and action of
surface water is so continuous as to leave a distinctive mark such
as by erosion, destruction or prevention of terrestrial vegetation,
predominance of aquatic vegetation, or other easily recognized characteristic.
Where the bank or shore at any place is of such character that it
is difficult or impossible to ascertain where the point of ordinary
high water mark is, recourse may be had to the opposite bank of a
stream or to other places on the shore of a lake or flowage to determine
whether a given stage of water is above or below the ordinary high-water
mark.
ORDINARY MAINTENANCE AND REPAIR
Any work done on a nonconforming structure that does not
constitute expansion, structural alteration, or reconstruction and
does not involve the replacement, alteration, or improvement of any
portion of the structure's foundation.
PLANNED CLUSTER DEVELOPMENT
A pattern of development that places residences into compact
groupings as a means of preserving open space.
PORCH
A building walkway with a roof over it, providing access
to a building entrance.
PRINCIPAL STRUCTURE
The main building or other structure on a lot that is utilized
for the property's principal use. The term "principal structure"
includes attached garages and porches.
REASONABLE ACCOMMODATION
Allowing a disabled person to deviate from the strict requirements
of the county's zoning ordinances if an accommodation is necessary
and reasonable, in order not to unlawfully discriminate against the
disabled person and to allow him or her equal housing opportunity.
RECONSTRUCTION
The replacement of all or substantially all of the components
of a structure other than the foundation.
SELECTION CUTTING
The removal of selected trees throughout the range of merchantable
sizes at regular intervals, either singly or in small groups, leaving
a uniformly distributed stocking of desirable tree and shrub size
classes.
SETBACK
The minimum horizontal distance between a structure and either
the ordinary high-water mark or the bluffline.
SHELTERWOOD CUT
A partial removal of mature trees leaving trees of desirable
species and form to provide shade, seed source, and a desirable seedbed
for natural regeneration with the final removal of the overstory after
adequate regeneration is established.
SLOPE PRESERVATION ZONE
The area riverward from the bluffline where the slope towards
the river is 12% or more, as measured horizontally for a distance
of not more than 50 feet or less than 25 feet.
SMALL REGENERATION CUT
A harvest of not more than 1/3 of the contiguous forested
ownership within a ten-year period with each opening not exceeding
six acres in size and not closer than 75 feet at their closest points.
STEALTH DESIGN
A wireless communication service facility that models or
mimics in size or shape and color something in the surrounding landscape,
such as silos in farm settings and trees in forested lands and is
unrecognizable year-round as an antenna or antenna mount.
STRUCTURAL ALTERATION
The replacement or alteration of one or more of the structural
components of any of a nonconforming structure's exterior walls.
STRUCTURAL COMPONENT
Any part of the framework of a building or other structure.
The structural components of a building's exterior walls include
the vertical studs, top and bottom plates, and window and doorsills
and headers. A structural component may be non-load-bearing, such
as the framework of a wall at the gable end of a one-story house.
Wallcoverings, such as siding on the exterior and dry wall on the
interior, are not included in the definition of "structural component."
STRUCTURE
Any man-made object with form, shape, and utility, that is
constructed or otherwise erected, attached to or permanently or temporarily
placed, either upon the ground, a riverbed, streambed, or lakebed
or upon another structure. For the purposes of this chapter, the term
"structure" includes swimming pools, hot tubs, patios, decks and retaining
walls, but does not include landscaping or earthwork such as graded
areas, filled areas, ditches, berms, or earthen terraces. The term
"structure" does not include small objects that are easily moved by
hand, such as lawn chairs, portable grills, portable picnic tables,
bird feeders, birdhouses, and birdbaths.
SUBSTANDARD LOT
A lot with dimensions that do not conform to all of the requirements
of the local zoning ordinance.
TRANSMISSION SERVICES
Electric power lines, telephone and telegraph lines, communication
towers, cables, sewage lift stations, sewer and water pipes, and other
pipes, conduits and accessory structures that are used to transport
power, convey information, or transport material between two points,
other than wireless communication service facilities.
VISUALLY INCONSPICUOUS
Difficult to see, or not readily noticeable, in summer months
as viewed from at or near the mid-line of the Lower St. Croix River.
WETLAND
Has the meaning found in W.S.A. § 23.32(1).
Note: W.S.A. § 23.32(1) W.S.A. defines wetland
to mean an area where water is at, near, or above the land surface
long enough to be capable of supporting aquatic or hydrophytic vegetation
and which has soils indicative of wet conditions.
The conditional uses and structures listed in §
252-6B may be permitted if the requirements in §
252-7 and the following standards are met:
A. Land divisions. A conditional use permit may be granted to divide
property into lots if all the following conditions are met:
(1) All lots proposed to be built on shall meet the minimum lot size requirements in §
252-7A(1) and
(2) and shall be suitable for residential development in their existing condition without the need for a variance.
(2) All lots are suitable for their proposed use and will not be subject
to the potential for flooding, inadequate drainage, severe erosion,
inadequate water supply, or inadequate sewage disposal capabilities.
(3) Use of the lots will not be limited by unfavorable soil and rock
formations, unfavorable topography, or any other feature which is
likely to result in harm to the health, safety, or welfare of future
residents of the lots or of the City of Hudson.
(4) The Zoning Administrator shall consult with the state historical
society concerning potential impacts to archeological sites. If the
property is found to contain an archeological site, the City of Hudson
and the applicant shall develop and implement a plan to avoid or mitigate
impacts to the archeological site with the assistance from the state
historical society.
B. Planned cluster developments. A conditional use permit may be issued
for a planned cluster development for single-family residences if
all the following are met:
(1) The proposed clustering provides a better means of preserving scenic
views, open space, and shoreline than a traditional single-family
residential subdivision.
(2) The proposed structures comply with the minimum ordinary high water mark and bluffline setbacks and height standards in §
252-7A.
(3) Exceptions to the standards in §
252-7A(1) and
(2) may be allowed for planned cluster developments, provided that the total number of single-family residences may not exceed 50% more than the total number of single-family residences allowed if the development complied with all standards in §
252-7A(1) and
(2).
(4) On any lots that abut the river, all of the standards in §
252-7A shall be met.
(5) If lands are divided, the land division meets the requirements of §
252-8A.
C. Transmission services. A conditional use permit may be issued for
the construction, updating, maintenance, or reconstruction of transmission
services if all the following are met:
(1) All new, updated, or reconstructed transmission services shall be
placed underground, if underground placement is determined to be technically
feasible by the City. If an applicant seeks to establish that underground
placement is technically infeasible, the application shall explain
what factors make it infeasible.
(2) If underground placement is determined to be technically infeasible,
overhead or aboveground transmission services may be permitted, but
shall be designed to minimize the adverse visual impact on the scenic
character of the riverway.
(3) New, updated or reconstructed transmission services shall be constructed
and maintained using minimally invasive techniques for construction
and maintenance, including erosion control. Existing transmission
facilities shall be maintained using minimally invasive techniques
for maintenance, including erosion control.
(4) Cutting or clearing of vegetation for transmission service maintenance
may be conducted; however, an understory layer of vegetation shall
be maintained to prevent erosion and allow succession. Vegetation
management shall protect the quality and diversity of the plant community
and prevent erosion. Herbicide use shall be limited to direct topical
application to cut stems to prevent regrowth. The pruning of normal
tree growth for safety reasons or to prevent interference with the
transmission service and removal of noxious weeds is allowed.
D. Wireless communication service facilities. A conditional use permit
may be issued for the installation, reconstruction, modification,
and replacement of wireless communication service facilities if all
the following are met:
(1) Construction and maintenance shall be conducted using techniques
which minimize the cutting or pruning of vegetation in order to preserve
mature vegetation and provide screening of the facilities. Erosion
control measures shall be used.
(2) Wireless communication service facilities shall use building materials,
colors, textures, screening and landscaping that blend the facilities
in with surrounding natural features or nearby structures and shall
be visually inconspicuous.
(3) Wireless communication service facilities shall be of camouflage
or stealth design, unless placed on existing structures.
(4) In the River Town Management Zone, the facilities shall be of a height
designed to blend in with the historic character of the community.
(5) In the Rural Residential Management Zone, wireless communication
service facilities may not exceed a height of 50 feet or not more
than 20 feet above the tallest structure or tree canopy within a 300-foot
radius of the proposed wireless communication service facilities as
measured horizontally, whichever is higher.
(6) New or reconstructed wireless communication service facilities may
not be placed in slope preservation zones, floodplains, or wetlands.
E. Filling and grading activities.
(1) A conditional use permit may be issued for filling and grading activities in the following areas if the conditions in Subsection
E(2) are satisfied:
(a)
In slope preservation zones that do not directly face the river
and do not drain directly to the river.
(b)
Outside of slope preservation zones when more than 10,000 square
feet of land is proposed to be disturbed by filling or grading activity.
(c)
Within 40 feet of a slope preservation zone.
(2) A conditional use permit may be issued for filling and grading in the areas described in Subsection
E(1) if all of the following conditions are met:
(a)
Filling and grading activities do not disturb more than 10,000
square feet of land within a slope preservation zone.
(b)
No wetlands are filled or graded.
(c)
Any vegetation that is removed is replaced with native vegetation.
(d)
Filling and grading activities are designed and implemented
in a manner to minimize erosion, sedimentation, and impairment of
fish and wildlife habitat.
(e)
As part of an erosion control plan, Wisconsin construction site
best management practices are implemented.
F. Structural erosion control measures in slope preservation zones.
A conditional use permit may be issued for the construction, updating,
maintenance, or reconstruction of structural erosion control measures
in slope preservation zones if all the following are met:
(1) The Zoning Administrator determines that structural erosion control
measures are necessary to address significant ongoing erosion that
nonstructural erosion control measures cannot control.
(2) The structural erosion control measure shall be constructed of natural
materials and made as visually inconspicuous as possible.
(3) The applicant submits a detailed construction plan, an erosion control
plan, and a vegetative management plan, showing each of the following:
(a)
How the structural erosion control measure will be constructed.
(b)
What land disturbing activities will take place.
(c)
What, if any, vegetation will be removed.
(d)
How new native vegetation will be reestablished.
(4) Construction may not proceed until the Zoning Administrator has approved
such plans.
G. Stairways. A conditional use permit may be issued for a stairway
if all the following are met:
(1) The stairway is required to provide pedestrian access to the river
because of steep, rocky, unstable, or wet site conditions.
(2) The tread width of the stairway may not exceed 36 inches.
(3) Landings are located at a vertical interval of not less than 20 feet
and may not exceed 40 square feet in area.
(4) Railings or handrails are permitted in conjunction with stairs and
shall be painted or stained the same color as the stairways.
(5) Canopies and roofs are not allowed on stairways.
(6) Stairways, handrails, and landings shall be anchored and supported
above grade with pilings or footings.
(7) Stairways shall be constructed of unfinished wood or stone or shall
be painted or stained with earth-tone materials.
(8) Stairways shall be visually inconspicuous and shall be located in
the most visually inconspicuous portion of the lot.
(9) Native vegetation plantings shall be used to form a vegetative canopy
to screen the stairway from the river. Vegetation shall be planted
to effectively screen stairs, or the stairs shall be removed.
(10)
Existing vegetation may be removed within one foot of either
side of the stairway route and up to eight feet above the stairway
floor.
(11)
Only one stairway may be permitted on a lot that abuts the Lower
St. Croix River.
H. Lift standards. A conditional use permit may be issued for a lift
if all the following are met:
(1) The lift is required to provide pedestrian access to the river because
of steep, rocky, unstable, or wet site conditions.
(2) The car of the lift may not exceed four feet by six feet.
(3) Canopies and roofs are not allowed.
(4) All visible parts of the lift shall be painted or finished in earth-tone,
nonreflective materials and shall be visually inconspicuous.
(5) Lifts and their transporting device or power source shall be visually
inconspicuous and shall be located in the most visually inconspicuous
portion of the lot.
(6) Native vegetation plantings shall be used to form a vegetative canopy
to screen the lift from the river. Vegetation shall be planted to
effectively screen the lift, or the lift shall be removed.
(7) Existing vegetation may be removed within one foot on either side
of the lift route and up to eight feet above the lift floor.
(8) Only one lift may be permitted on a lot that abuts the Lower St.
Croix River.
I. Public and private roads serving two or more properties or single-family
residences. A conditional use permit may be issued for the construction,
reconstruction, or right-of-way maintenance for public roads and private
roads serving two or more properties or single-family residences if
all the following are met:
(1) No new road may be constructed in slope preservation zones, in an
area 40 feet landward of bluff lines, within 200 feet of the river,
within 100 feet of tributary watercourses or in wetlands.
(2) Route design and construction or reconstruction shall minimize visual
impacts by using terrain features to blend the road into the landscape,
avoiding cuts and fills as much as feasible.
(3) New roads shall be visually inconspicuous. Reconstruction of existing
roads shall be performed in a manner that does not increase visibility
of the road from the river.
(4) Cutting or clearing vegetation for road right-of-way maintenance
shall be conducted in accordance with the following:
(a)
Vegetation shall be managed to allow an understory layer to
remain in place to prevent erosion and allow succession. Vegetation
may not be disturbed in such a way that there would be reduced quality
or diversity of the plant community or increased potential for erosion.
(b)
Herbicide use shall be limited to direct topical application
to cut stems to prevent regrowth. The pruning of normal tree growth
for safety reasons or to prevent interference with infrastructure
and the removal of noxious weeds is permitted.
(c)
Mowing of a safety zone from the edge of the pavement back 15
feet or to the ditch bottom, whichever is less, and clearing intersection
vision triangles is allowed. Other parts of the right-of-way may be
mowed to control noxious weeds and undesirable brush only after July
15 of each year to avoid impacts to ground-nesting birds.
(d)
Cutting trees more than four inches in diameter at breast height
is prohibited, except that trees that pose a hazard to public health
or safety may be removed.
J. Bed-and-breakfast operations. A conditional use permit may be issued
for a bed-and-breakfast operation if all the following are met:
(1) The bed-and-breakfast operation provides four or fewer rooms for
rent to transient visitors.
(2) The bed-and-breakfast operation has sufficient parking spaces on
its lot or on public roads for the guests.
K. Home occupations. A conditional use permit may be issued for the use of a single-family residence for a home occupation provided that in addition to meeting the standards of §
255-54 the following are also met:
(1) The owner or person who rents the residence on a full-time basis
conducts the home occupation.
(2) The home occupation is conducted inside of the residence and is subordinate
to the use of the home as a principal residence.
(3) The home occupation will not cause environmental pollution.
(4) If the home occupation causes additional persons to visit the residence,
sufficient parking is provided on the lot or on public streets.
(5) Whenever the provisions of any other law or ordinance impose more
stringent requirements than are imposed or required by this section,
then the provisions of such law or ordinance shall govern.
L. Nature-oriented educational, nonprofit facilities. A conditional
use permit may be issued for a nature-oriented educational, nonprofit
facility if all the following are met:
(1) The facility will not cause environmental pollution or erosion.
(2) The facility has sufficient parking on its property or on public
streets for patrons to park.