LRB-4034/1
EHS:klm&wlj
2015 - 2016 LEGISLATURE
December 29, 2015 - Introduced by Senators LeMahieu and Kapenga, cosponsored
by Representatives Jarchow, Duchow, Ballweg, R. Brooks, Czaja, Hutton,
Knodl and A. Ott. Referred to Committee on Natural Resources and Energy.
SB477,1,4 1An Act to renumber and amend 59.692 (1k) (a) 5.; to amend 59.692 (1k) (b);
2and to create 59.692 (1k) (a) 2m., 59.692 (1k) (a) 5. b. and c., 59.692 (1k) (bm)
3and 59.692 (1n) of the statutes; relating to: restrictions in a county shoreland
4zoning ordinance on activities within the shoreland setback area.
Analysis by the Legislative Reference Bureau
This bill codifies and makes changes to certain Department of Natural
Resources (DNR) shoreland zoning standards.
Under current law, a county must enact a shoreland zoning ordinance for all
shorelands in its unincorporated area, and the ordinance may not regulate a matter
more restrictively than the matter is regulated by shoreland zoning standards
established by DNR by rule. Current law generally defines "shorelands" to be an area
within a specified distance from the ordinary high-water mark (OHWM) of a
navigable water. Current law requires a county to establish a shoreland setback
area, which is an area within a certain distance of the OHWM in which the
construction or placement of structures is limited or prohibited.
This bill codifies into law current DNR shoreland zoning standards that require
a setback of 75 feet from the OHWM to the nearest part of a building or structure.
The bill also codifies into law current DNR shoreland zoning standards that provide
that, if principal structures exist on adjacent lots and within 250 feet of a proposed
principal structure in both directions along the shoreline, the setback distance may
be reduced to the average of the setbacks on each adjacent lot, but no less than 35
feet. The bill also provides that if principal structures exist on adjacent lots and

within 200 feet of a proposed principal structure in both directions along the
shoreline and both are set back more than 75 feet from the OHWM at the setback that
was required at the time each was built, the county shoreland zoning ordinance may
establish a setback equal to the average of the distance the neighboring principal
structures are set back from the OHWM.
This bill codifies into law current DNR shoreland zoning standards that exempt
from the general setback requirements the construction of boathouses located
entirely above the OHWM, open-sided and screened structures, fishing rafts,
broadcast signal receivers, utility facilities, water towers, pumping facilities, private
wastewater treatment systems, and walkways, stairways, and rail systems
necessary to provide pedestrian access to the shoreline.
Current law generally prohibits the enactment of a county shoreland zoning
ordinance that prohibits or regulates the maintenance, repair, replacement,
restoration, rebuilding, or remodeling of all or any part of a nonconforming structure
if that activity does not expand the structure's footprint. For purposes of this
restriction, nonconforming structures are those that existed lawfully before
enactment of the county shoreland zoning ordinance but that no longer conform with
one or more parts of the ordinance that apply to elements including setback, height,
lot coverage, and side yard. The bill expands this prohibition to any of the structures
that are exempt from the general setback requirements and that were constructed
legally, but allows an ordinance to restrict those activities from expanding such a
structure beyond the three-dimensional building envelope of the existing structure.
Under this bill, if DNR shoreland zoning standards regulate impervious
surface area and if those standards allow a greater amount of impervious surface on
areas for highly developed shorelines than areas with shorelines that are not highly
developed, the standards must require an area with highly developed shorelines to
include at least 500 feet of shoreline and must require that the area either be
composed of a majority of lots with more than 30 percent impervious surface area,
as calculated by DNR; be composed of a majority of lots that are less than 20,000
square feet in area; or be located on a lake and served by a sewerage system. This
bill also requires DNR shoreland zoning standards to prohibit a roadway or sidewalk
from being considered an impervious surface.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
SB477,1 1Section 1. 59.692 (1k) (a) 2m. of the statutes is created to read:
SB477,3,22 59.692 (1k) (a) 2m. Except as provided in pars. (b) and (bm), requires any
3approval or imposes any fee or mitigation requirement for, or otherwise prohibits or
4regulates, the maintenance, repair, replacement, restoration, rebuilding, or

1remodeling of all or any part of a structure listed under sub. (1n) (d) that was legally
2constructed if the activity does not expand the footprint of the existing structure.
SB477,2 3Section 2. 59.692 (1k) (a) 5. of the statutes, as created by 2015 Wisconsin Act
455
, is renumbered 59.692 (1k) (a) 5. (intro.) and amended to read:
SB477,3,65 59.692 (1k) (a) 5. (intro.) Establishes standards for impervious surfaces unless
6the all of the following apply:
SB477,3,10 7a. The standards provide that a surface is considered pervious if the runoff from
8the surface is treated by a device or system, or is discharged to an internally drained
9pervious area, that retains the runoff on or off the parcel to allow infiltration into the
10soil.
SB477,3 11Section 3. 59.692 (1k) (a) 5. b. and c. of the statutes are created to read:
SB477,3,1912 59.692 (1k) (a) 5. b. If the standards allow a greater amount of impervious
13surface on areas with highly developed shorelines than areas with shorelines that
14are not highly developed, as determined by the department, the standards also
15require an area with highly developed shorelines to include at least 500 feet of
16shoreline and require that the area either be composed of a majority of lots with more
17than 30 percent impervious surface area, as calculated by the department; be
18composed of a majority of lots that are less than 20,000 square feet in area; or be
19located on a lake and served by a sewerage system, as defined in s. 281.01 (14).
SB477,3,2120 c. The standards prohibit considering a roadway, as defined in s. 340.01 (54),
21or a sidewalk, as defined in s. 340.01 (58), as impervious surfaces.
SB477,4 22Section 4. 59.692 (1k) (b) of the statutes, as created by 2015 Wisconsin Act 55,
23is amended to read:
SB477,4,224 59.692 (1k) (b) A county shoreland zoning ordinance shall allow an activity
25specified under par. (a) 2. and 2m. to expand the footprint of a nonconforming

1structure or a structure listed under sub. (1n) (d) if the expansion is necessary for the
2structure to comply with applicable state or federal requirements.
SB477,5 3Section 5. 59.692 (1k) (bm) of the statutes is created to read:
SB477,4,64 59.692 (1k) (bm) A county shoreland zoning ordinance may prohibit an activity
5specified under par. (a) 2m. from expanding a structure listed under sub. (1n) (d)
6beyond the 3-dimensional building envelope of the existing structure.
SB477,6 7Section 6. 59.692 (1n) of the statutes is created to read:
SB477,4,98 59.692 (1n) (a) In this subsection, "setback" means the distance that a
9shoreland setback area extends from the ordinary high-water mark.
SB477,4,1110 (am) Except as provided under pars. (b), (c), and (d), a county shoreland zoning
11ordinance shall establish a setback of 75 feet.
SB477,4,1712 (b) Except as provided in par. (c), if a principal structure exists on an adjacent
13lot and within 250 feet of a proposed principal structure in both directions along the
14shoreline, a county shoreland zoning ordinance shall allow a setback equal to the
15average of the distance that each principal structure on an adjacent lot and within
16250 feet of the proposed principal structure is set back from the ordinary high-water
17mark but no less than 35 feet.
SB477,4,2418 (c) If a principal structure exists within 200 feet of a proposed principal
19structure in both directions along the shoreline, and both of the existing principal
20structures are set back more than 75 feet from the ordinary high-water mark at the
21setback that was required at the time each structure was built, a county shoreland
22zoning ordinance may allow a setback equal to the average of the distance each
23principal structure within 200 feet of the proposed principal structure is set back
24from the ordinary high-water mark.
SB477,5,3
1(d) A county shoreland zoning ordinance may not prohibit the construction of
2any of the following structures within the 75-foot setback requirement under par.
3(am):
SB477,5,54 1. A boathouse, as defined in s. 30.01 (1d), that is located entirely above the
5ordinary high-water mark.
SB477,5,66 2. A structure that satisfies the requirements in sub. (1v).
SB477,5,77 3. A fishing raft for which the department has issued a permit under s. 30.126.
SB477,5,108 4. A broadcast signal receiver, including a satellite dish, or an antenna that is
9no more than one meter in diameter and a satellite earth station antenna that is no
10more than 2 meters in diameter.
SB477,5,1611 5. A utility transmission line, utility distribution line, pole, tower, water tower,
12pumping station, well pumphouse cover, private on-site wastewater treatment
13system that complies with ch. 145, and any other utility structure for which no
14feasible alternative location outside of the setback exists and which is constructed
15and placed using best management practices to infiltrate or otherwise control storm
16water runoff from the structure.
SB477,5,1817 6. A walkway, stairway, or rail system that is necessary to provide pedestrian
18access to the shoreline and is no more than 60 inches in width.
SB477,5,1919 (End)
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