Chapter NR 115

NR 115.04(2)(b)2. 2. Ordinance text and map amendments creating or amending shoreland-wetland zoning districts shall be referred to the county zoning agency for public hearing as required by s. 59.69 (5) (e) 2., Stats.

NR 115.04 Note Note: Where an apparent discrepancy exists between a shoreland-wetland district shown on an amended map and actual field conditions, the county shall contact the department to determine if the amended map is in error. If the department determines that a particular area was incorrectly mapped as wetland or meets the wetland definition but was not shown as wetland on the map, the county shall have the authority to immediately grant or deny a shoreland zoning permit in accordance with the applicable regulations based on the department determination as to whether the area is wetland. In order to correct wetland mapping errors on the official zoning map, an official map amendment must be initiated within a reasonable period of time, not to exceed one year following the determination.

NR 115.04(2)(b)3. 3. At least 10 days prior to the public hearing, the county shall provide the appropriate regional office of the department with a copy of the proposed text and map amendments and with written notice of the public hearing.

NR 115.04(2)(c) (c) Amendment of shoreland-wetland zoning districts.

NR 115.04(2)(c)1. 1. Official ordinance amendments are required for any proposed change in shoreland-wetland zoning. Such amendments shall be made in accordance with provisions of s. 59.69 (5) (e), Stats. Official amendments to the ordinance text shall be made promptly. Provided the ordinance text is promptly amended, a county may amend its official map within a reasonable period of time not to exceed one year following the change in shoreland-wetland zoning.

NR 115.04(2)(c)2. 2. The county clerk shall submit a copy of every proposed amendment to a shoreland-wetland zoning district to the appropriate regional office of the department within 5 days of the filing of such proposed amendment with the clerk.

NR 115.04(2)(c)3. 3. All proposed text and map amendments to shoreland-wetland zoning districts shall be referred to the county zoning agency for a public notice and hearing as required by s. 59.69 (5) (e) 2., Stats. The appropriate regional office of the department shall be provided with written notice of the public hearing at least 10 days prior to such hearing.

NR 115.04(2)(c)4. 4. In order to ensure that the shoreland protection objectives found in s. 281.31, Stats., will be accomplished by the county shoreland ordinance, a county shall not rezone a shoreland-wetland zoning district, or portion thereof, if the proposed rezoning may result in a significant adverse impact upon any of the following:

NR 115.04(2)(c)4.a. a. Storm and flood water storage capacity;

NR 115.04(2)(c)4.b. b. Maintenance of dry season stream flow, or the discharge of groundwater to a wetland, the recharge of groundwater from a wetland to another area, or the flow of groundwater through a wetland;

NR 115.04(2)(c)4.c. c. Filtering or storage of sediments, nutrients, heavy metals or organic compounds that would otherwise drain into navigable waters;

NR 115.04(2)(c)4.d. d. Shoreline protection against soil erosion;

NR 115.04(2)(c)4.e. e. Fish spawning, breeding, nursery or feeding grounds;

NR 115.04(2)(c)4.f. f. Wildlife habitat; or

NR 115.04(2)(c)4.g. g. Areas of special recreational, scenic or scientific interest, including scarce wetland types.

NR 115.04(2)(c)5. 5. If the department determines that the proposed rezoning may have a significant adverse impact upon any of the criteria listed in subd. 4., the department shall notify the county zoning agency of its determination either prior to or during the public hearing held on the proposed amendment.

NR 115.04(2)(c)6. 6. As soon as possible after holding a public hearing, the county zoning agency shall submit its written findings and recommendations to the county board. Said findings shall outline the reason for the agency’s recommendations. After receipt of the county zoning agency’s findings and recommendations, the board may approve or disapprove of the proposed amendment.

NR 115.04(2)(c)7. 7. The appropriate regional office of the department shall be provided with all of the following:

NR 115.04(2)(c)7.a. a. A copy of the county zoning agency’s findings and recommendations on the proposed amendment within 10 days after the submission of those findings and recommendations to the county board;

NR 115.04(2)(c)7.b. b. Written notice of the board’s decision on the proposed amendment within 10 days after it is issued.

NR 115.04(2)(c)8. 8. If the county board approves of the proposed amendment and the department determines, after review as required by s. NR 115.06 (2) (c), that the county shoreland zoning ordinance if so amended would no longer comply with the requirements of s. 59.692, Stats., and this chapter, the department shall, after notice and hearing, adopt a complying ordinance for the county, under s. 59.692 (6), Stats.

NR 115.04(2)(c)9. 9. If the department has notified the county zoning agency that a proposed amendment may have a significant adverse impact upon any of the criteria listed in subd. 4., that proposed amendment, if approved by the county board, shall not become effective until more than 30 days have elapsed since written notice of the county board’s approval was mailed to the department, as required by subd. 7. If within the 30-day period the department notifies the county board that the department intends to adopt a superseding shoreland zoning ordinance for the county under s. 59.692 (6), Stats., the proposed amendment shall not become effective while the ordinance adoption procedure is proceeding, but shall have its effect stayed until the s. 59.692 (6), Stats., procedure is completed or otherwise terminated.

NR 115.04(3) (3) Permitted uses in shoreland-wetland zoning districts. Within shoreland-wetland zoning districts, counties shall permit the following uses subject to the general requirements of s. NR 115.05, the provisions of chs. 30 and 31, Stats., and other state and federal laws, if applicable:

NR 115.04(3)(a) (a) Hiking, fishing, trapping, hunting, swimming and boating.

NR 115.04(3)(b) (b) The harvesting of wild crops, such as marsh hay, ferns, moss, wild rice, berries, tree fruits and tree seeds, in a manner that is not injurious to the natural reproduction of such crops and that does not involve filling, flooding, draining, dredging, ditching, tiling or excavating.

NR 115.04(3)(c) (c) The practice of silviculture, including the planting, thinning and harvesting of timber, provided that no filling, flooding, draining, dredging, ditching, tiling or excavating is done except as required to construct and maintain roads which are necessary to conduct silviculture activities, which cannot as a practical matter be located outside the wetland, and which are designed and constructed to minimize the adverse impact upon the natural functions of the wetland, or except as required for temporary water level stabilization measures to alleviate abnormally wet or dry conditions which would have an adverse impact on the conduct of silvicultural activities if not corrected.

NR 115.04 Note Note: Local units of government, in the development and application of ordinances which apply to shoreland areas, must consider other programs of statewide interest and other state regulations affecting the lands to be regulated, i.e. regulations and management practices applicable to state and county forests and lands entered under the forest cropland and managed forest land programs.

NR 115.04(3)(d) (d) The pasturing of livestock and the construction and maintenance of fences, provided that no filling, flooding, draining, dredging, ditching, tiling or excavating is done.

NR 115.04(3)(e) (e) The cultivation of agricultural crops if cultivation can be accomplished without filling, flooding or artificial drainage of the wetland through ditching, tiling, dredging or excavating except that flooding, dike and dam construction, and ditching shall be allowed for the purpose of growing and harvesting cranberries. The maintenance and repair of existing drainage systems (such as ditching and tiling) shall be permitted. The construction and maintenance of roads shall be permitted if the roads are necessary for agricultural cultivation, cannot as a practical matter be located outside the wetland, and are designed and constructed to minimize the adverse impact upon the natural functions of the wetland.

NR 115.04(3)(f) (f) The construction and maintenance of duck blinds provided that no filling, flooding, draining, dredging, ditching, tiling or excavating is done.

NR 115.04(3)(g) (g) The construction and maintenance of nonresidential structures, not to exceed 500 square feet, used solely in conjunction with the raising of waterfowl, minnows, or other wetland or aquatic animals, or used solely for some other purpose which is compatible with wetland preservation if the structure cannot as a practical matter be located outside the wetland, provided that no filling, flooding, draining, dredging, ditching, tiling or excavating is done.

NR 115.04(3)(h) (h) The construction and maintenance of piers, docks and walkways, including those built on pilings, provided that no filling, flooding, dredging, draining, ditching, tiling or excavating is done.

NR 115.04(3)(i) (i) The establishment and development of public and private parks and recreation areas, boat access sites, natural and outdoor education areas, historic and scientific areas, wildlife refuges, game preserves and private wildlife habitat areas, provided that no filling is done and that any private wildlife habitat area is used exclusively for that purpose. The owner or operator of a new private recreation or wildlife area to be located in a shoreland-wetland zoning district shall be required to notify the county zoning agency of the proposed project before beginning construction. Ditching, excavating, dredging, dike and dam construction shall be allowed in wildlife refuges, game preserves, and private wildlife habitat areas for the purpose of improving wildlife habitat or to otherwise enhance wetland values.

NR 115.04(3)(j) (j) The construction and maintenance of electric, gas, telephone water and sewer transmission and distribution lines, and related facilities, by public utilities and cooperative associations organized for the purpose of producing or furnishing heat, light, power or water to their members, which cannot as a practical matter be located outside the wetland, provided that any filling, excavating, ditching or draining necessary for such construction or maintenance is done in a manner designed to minimize flooding and other adverse impacts upon the natural functions of the wetland.

NR 115.04 Note Note: Major electrical generating facilities and high-voltage transmission lines that have obtained a certificate of public convenience and necessity under s. 196.491, Stats., are not subject to the requirements of local ordinances.

NR 115.04(3)(k) (k) The construction and maintenance of railroad lines which cannot as a practical matter be located outside the wetland, provided that any filling, excavating, ditching or draining necessary for the construction or maintenance is done in a manner designed to minimize flooding and other adverse impacts upon the natural functions of the wetland.

NR 115.04(3)(L) (L) The maintenance, repair, replacement, and reconstruction of existing town and county highways and bridges.

NR 115.04(4) (4) Prohibited uses in shoreland-wetland zoning districts. Any use not permitted in sub. (3) is prohibited in a shoreland-wetland zoning district unless the wetland or portion thereof is rezoned by amendment of the county shoreland zoning ordinance in accordance with s. 59.69 (5) (e), Stats., and the procedures outlined in sub. (2) (c).

NR 115.04 History History: CR 05-058: cr. Register January 2010 No. 649, eff. 2-1-10.

NR 115.05 NR 115.05 Minimum zoning standards for shorelands.

NR 115.05(1) (1) Establishment of shoreland zoning standards. The shoreland zoning ordinance adopted by each county shall control use of shorelands to afford the protection of water quality as specified in chs. NR 102 and 103. At a minimum, the ordinance shall include all of the following provisions:

NR 115.05(1)(a) (a) Minimum lot sizes. Minimum lot sizes in the shoreland area shall be established to afford protection against danger to health, safety and welfare, and protection against pollution of the adjacent body of water.

NR 115.05(1)(a)1. 1. ‘Sewered lots.’ Lots served by public sanitary sewer shall have a minimum average width of 65 feet and a minimum area of 10,000 square feet.

NR 115.05(1)(a)2. 2. ‘Unsewered lots.’ Lots not served by public sanitary sewer shall have a minimum average width of 100 feet and a minimum area of 20,000 square feet.

NR 115.05(1)(a)3. 3. ‘Substandard lots.’ A legally created lot or parcel that met minimum area and minimum average width requirements when created, but does not meet current lot size requirements, may be used as a building site if all of the following apply:

NR 115.05 Note Note: Effective April 17, 2012, 2011 Wisconsin Act 170 created s. 59.692 (2m), Stats., which prohibits a county from enacting, and a county, city, or village from enforcing, any provision in a county shoreland or subdivision ordinance that regulates the construction of a structure or building on a substandard lot if the provision is more restrictive than the standards for substandard lots under ch. NR 115.

NR 115.05(1)(a)3.a. a. The substandard lot or parcel was never reconfigured or combined with another lot or parcel by plat, survey, or consolidation by the owner into one property tax parcel.

NR 115.05(1)(a)3.b. b. The substandard lot or parcel has never been developed with one or more of its structures placed partly upon an adjacent lot or parcel.

NR 115.05(1)(a)3.c. c. The substandard lot or parcel is developed to comply with all other ordinance requirements.

NR 115.05(1)(a)4. 4. ‘Planned unit development.’ A non-riparian lot may be created which does not meet the requirements of subd. 1. if the county has approved and recorded a plat or certified survey map including that lot within a planned unit development, if the planned unit development contains at least 2 acres or 200 feet of frontage, and if the reduced non-riparian lot sizes are allowed in exchange for larger shoreland buffers and setbacks on those lots adjacent to navigable waters that are proportional to and offset the impacts of the reduced lots on habitat, water quality and natural scenic beauty.

NR 115.05(1)(b) (b) Building setbacks. Permitted building setbacks shall be established to conform to health, safety and welfare requirements, preserve natural beauty, reduce flood hazards and avoid water pollution.

NR 115.05(1)(b)1. 1. ‘Shoreland setback.’ Except where exempt under subd. 1m., a setback of 75 feet from the ordinary high-water mark of any navigable waters to the nearest part of a building or structure shall be required for all buildings and structures. Where an existing development pattern exists, the shoreland setback for a proposed principal structure may be reduced to the average shoreland setback of the principal structure on each adjacent lot, but the shoreland setback may not be reduced to less than 35 feet from the ordinary high-water mark of any navigable waters.

NR 115.05 Note Note: A property owner may seek a variance to a dimensional standard of the county ordinance and a county board of adjustment may review the request pursuant to s. 59.694 (7) (c), Stats.

NR 115.05(1)(b)1m. 1m. ‘Exempt structures.’ All of the following structures are exempt from the shoreland setback standards in subd. 1.:

NR 115.05(1)(b)1m.a. a. Boathouses located entirely above the ordinary high-water mark and entirely within the access and viewing corridor that do not contain plumbing and are not used for human habitation.

NR 115.05 Note Note: This chapter does not prohibit repair and maintenance of boathouses located above the ordinary high-water mark.

NR 115.05(1)(b)1m.b. b. Open sided and screened structures such as gazebos, decks, patios and screen houses in the shoreland setback area that satisfy the requirements in s. 59.692 (1v), Stats.

NR 115.05(1)(b)1m.c. c. Fishing rafts that are authorized on the Wolf river and Mississippi river under s. 30.126, Stats.

NR 115.05(1)(b)1m.d. d. Broadcast signal receivers, including satellite dishes or antennas that are one meter or less in diameter and satellite earth station antennas that are 2 meters or less in diameter.

NR 115.05(1)(b)1m.e. e. Utility transmission and distribution lines, poles, towers, water towers, pumping stations, well pumphouse covers, private on-site wastewater treatment systems that comply with ch. SPS 383, and other utility structures that have no feasible alternative location outside of the minimum setback and that employ best management practices to infiltrate or otherwise control storm water runoff from the structure.

NR 115.05(1)(b)1m.f. f. Walkways, stairways or rail systems that are necessary to provide pedestrian access to the shoreline and are a maximum of 60-inches in width.

NR 115.05(1)(b)2. 2. ‘Floodplain structures.’ Buildings and structures to be constructed or placed in a flood plain shall be required to comply with any applicable flood plain zoning ordinance.

NR 115.05(1)(b)3. 3. ‘Boathouses.’ The use of boathouses for human habitation and the construction or placing of boathouses beyond the ordinary high-water mark of any navigable waters shall be prohibited.

NR 115.05(1)(c) (c) Vegetation. To protect natural scenic beauty, fish and wildlife habitat, and water quality, a county shall regulate removal of vegetation in shoreland areas, consistent with the following:

NR 115.05(1)(c)1. 1. The county shall establish ordinance standards that consider sound forestry and soil conservation practices and the effect of vegetation removal on water quality, including soil erosion, and the flow of effluents, sediments and nutrients.

NR 115.05 Note Note: In developing and applying ordinances which apply to shoreland areas, local units of government must consider other applicable law and programs affecting the lands to be regulated, e.g., law and management practices that apply to state and county forests and lands entered under forest cropland and managed forest land programs, and ss. 59.692 (2) (a) and 59.69 (4) (a), Stats.

NR 115.05(1)(c)2. 2. To protect water quality, fish and wildlife habitat and natural scenic beauty, and to promote preservation and restoration of native vegetation, the county ordinance shall designate land that extends from the ordinary high water mark to a minimum of 35 feet inland as a vegetative buffer zone and prohibit removal of vegetation in the vegetative buffer zone except as follows:

NR 115.05(1)(c)2.a. a. The county may allow routine maintenance of vegetation.

NR 115.05(1)(c)2.b. b. The county may allow removal of trees and shrubs in the vegetative buffer zone to create access and viewing corridors, provided that the combined width of all access and viewing corridors on a riparian lot or parcel may not exceed the lesser of 30 percent of the shoreline frontage or 200 feet.

NR 115.05(1)(c)2.c. c. The county may allow removal of trees and shrubs in the vegetative buffer zone on a parcel with 10 or more acres of forested land consistent with “generally accepted forestry management practices” as defined in s. NR 1.25 (2) (b), and described in Department publication “Wisconsin Forest Management Guidelines” (publication FR-226), provided that vegetation removal be consistent with these practices.

NR 115.05(1)(c)2.d. d. The county may allow removal of vegetation within the vegetative buffer zone to manage exotic or invasive species, damaged vegetation, vegetation that must be removed to control disease, or vegetation creating an imminent safety hazard, provided that any vegetation removed be replaced by replanting in the same area as soon as practicable.

NR 115.05(1)(c)2.e. e. The county may authorize by permit additional vegetation management activities in the vegetative buffer zone. The permit issued under this subd. par. shall require that all management activities comply with detailed plans approved by the county and designed to control erosion by limiting sedimentation into the waterbody, to improve the plant community by replanting in the same area, and to maintain and monitor the newly restored area. The permit also shall require an enforceable restriction to preserve the newly restored area.

NR 115.05(1)(d) (d) Filling, grading, lagooning, dredging, ditching and excavating. Filling, grading, lagooning, dredging, ditching and excavating may be permitted only in accordance with the provisions of s. NR 115.04, the requirements of ch. 30, Stats., and other state and federal laws where applicable, and only if done in a manner designed to minimize erosion, sedimentation and impairment of fish and wildlife habitat and natural scenic beauty.

NR 115.05(1)(e) (e) Impervious surfaces. Counties shall establish impervious surface standards to protect water quality and fish and wildlife habitat and protect against pollution of navigable waters. County impervious surface standards shall require all of the following:

NR 115.05(1)(e)1. 1. ‘Application.’ Impervious surface standards shall apply to the construction, reconstruction, expansion, replacement or relocation of any impervious surface that is or will be located within 300 feet of the ordinary high water mark of any navigable waterway on any of the following:

NR 115.05(1)(e)1.a. a. A riparian lot or parcel.

NR 115.05(1)(e)1.b. b. A nonriparian lot or parcel that is located entirely within 300 feet of the ordinary high-water mark of any navigable waterway

NR 115.05(1)(e)1m. 1m. ‘Calculation.’ Percentage of impervious surface shall be calculated by dividing the surface area of the existing and proposed impervious surfaces on the lot or parcel by the total surface area of that lot or parcel, and multiplying by 100. For the purposes of this subdivision counties may exclude impervious surfaces described in subd. 3m. If an outlot lies between the ordinary high water mark and the developable lot or parcel described in subd. 1. and both are in common ownership, the lot or parcel and the outlot shall be considered one lot or parcel for the purposes of calculating the percentage of impervious surfaces.

NR 115.05(1)(e)2. 2. ‘General standard.’ Except as allowed in subds. 2m. to 4., a county may allow up to 15% impervious surface as calculated under subd. 1m on a lot or parcel described in subd. 1.

NR 115.05(1)(e)2m. 2m. ‘Standard for highly developed shorelines.’ At its discretion, a county may adopt an ordinance for highly developed shorelines that allows impervious surface as calculated under subd. 1m on lots or parcels described in subd. 1 as follows: up to 30% for residential land uses or up to 40% for commercial, industrial or business land uses.

NR 115.05(1)(e)2m.a. a. A “highly developed shoreline” means a shoreline within an area identified as an Urbanized Area or Urban Cluster in the 2010 US Census or a shoreline that has a commercial, industrial or business land use as of January 31, 2013.

NR 115.05(1)(e)2m.b. b. A county may establish, after conducting a hearing and receiving approval by the department, a map of additional areas of highly developed shorelines not included in subd. 2m. a.

NR 115.05(1)(e)2m.c. c. An additional area of highly developed shoreline under subd. 2m. b., shall include at least 500 feet of shoreline and as of February 1, 2010, have either a majority of its lots developed with more than 30% impervious surface area as calculated under subd. 1m. or be located on a lake and served by a sewerage system as defined in s. NR 110.03 (30). To obtain approval from the department for an additional area, the county shall provide data to the department that establishes that the additional area meets the criteria under this subd. 2m. c.

NR 115.05(1)(e)3. 3. ‘Maximum impervious surface.’ A county may allow a property owner to exceed the impervious surface standard under subds. 2. and 2m. provided that all of the following requirements are met:

NR 115.05(1)(e)3.a. a. For lots or parcels described under subd. 1. that exceed the impervious surface standard under subd. 2. and are not located within a highly developed shoreline as defined in subd. 2m., a county may allow more than 15% impervious surface but not more than 30% impervious surface as calculated under subd. 1m on the lot or parcel.

NR 115.05(1)(e)3.b. b. For lots or parcels described under subd. 1. and located within an area defined by county ordinance as a highly developed shoreline under subd. 2m., a county may allow more than 30% impervious surface but not more than 40% impervious surface as calculated under subd. 1m on the lot or parcel for properties that have a residential land use, or more than 40% impervious surface but not more than 60% impervious surface as calculated under subd. 1m. for properties that have a commercial, industrial or business land use.

NR 115.05(1)(e)3.c. c. For lots or parcels described under subd. 1 that exceed the impervious surface standard under subds. 2. and 2m., but do not exceed the maximum impervious surface standard under subd. 3. a. or b., the county shall issue a permit that requires a mitigation plan approved by the county and implemented by the property owner by the date specified in the permit. The mitigation plan shall include enforceable obligations of the property owner to establish or maintain measures that the county determines adequate to offset the impacts of the impervious surface on water quality, near-shore aquatic habitat, upland wildlife habitat and natural scenic beauty. The mitigation measures shall be proportional to the amount and impacts of the impervious surface being permitted. The obligations of the property owner under the mitigation plan shall be evidenced by an instrument recorded in the office of the county register of deeds.

NR 115.05(1)(e)3m. 3m. ‘Treated impervious surfaces.’ A county may exclude from the calculation under subdivision 1m., any impervious surface where the property owner can show that runoff from the impervious surface is treated by devices such as stormwater ponds, constructed wetlands, infiltration basins, rain gardens, bioswales or other engineered systems, or that the runoff discharges to internally drained pervious area that retains the runoff on the parcel to allow infiltration into the soil.

NR 115.05 Note Note: A property owner may seek a variance to a dimensional standard of the county ordinance, for areas that exceed the maximum impervious surface standard in subd. 3. and do not meet the provisions in subd. 3m. A county board of adjustment must review the request pursuant to s. 59.694 (7) (c), Stats., and applicable case law.