NR 118.07(6)(a)(a) The local zoning authority determines that structural erosion control measures are necessary to address significant on-going erosion that nonstructural erosion control measures cannot control. NR 118.07(6)(b)(b) The structural erosion control measure is constructed of natural materials and is made as visually inconspicuous as possible. NR 118.07(6)(c)(c) The person seeking to construct the structural erosion control measure submits a detailed construction plan, an erosion control plan and a vegetative management plan, showing how the structural erosion control measure will be constructed, what land disturbing activities will take place, what, if any, vegetation will be removed, and how new native, vegetation will be re-established. Construction may not proceed until the local zoning authority has approved the plans. NR 118.07(7)(7) Stairways. A conditional use permit may be issued for a stairway if all of the following conditions are met: NR 118.07(7)(a)(a) The stairway is required to provide pedestrian access to the river because of steep, rocky, unstable or wet site conditions. NR 118.07(7)(b)(b) The tread width of the stairway may not exceed 48 inches. NR 118.07(7)(c)(c) Landings are located at a vertical interval of not less than 20 feet and may not exceed 40 square feet in area. NR 118.07(7)(d)(d) Hand rails may be permitted in conjunction with stairways. NR 118.07(7)(f)(f) Stairways, handrails and landings shall be anchored and supported above grade with pilings or footings. NR 118.07(7)(g)(g) Stairways shall be constructed of unfinished wood or stone, or shall be painted or stained with earth-tone materials. NR 118.07(7)(h)(h) Stairways shall be visually inconspicuous and shall be located in the most visually inconspicuous portion of the lot. NR 118.07(7)(i)(i) Native vegetation plantings shall be used to form a vegetative canopy to screen the stairway from the river. NR 118.07(7)(j)(j) Existing vegetation may be removed within one foot of either side of the stairway route and up to 8 feet above the stairway floor. NR 118.07(7)(k)(k) Only one stairway may be permitted on a lot that abuts the Lower St. Croix river. NR 118.07(8)(8) Lift standards. A conditional use permit may be issued for a lift if all of the following requirements are met: NR 118.07(8)(a)(a) The lift is required to provide pedestrian access to the river because of steep, rocky, unstable or wet site conditions. NR 118.07(8)(d)(d) All visible parts of the lift shall be painted or finished in earth-tone, non-reflective materials and shall be visually inconspicuous. NR 118.07(8)(e)(e) 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. NR 118.07(8)(f)(f) Native vegetation plantings shall be used to form a vegetative canopy to screen the lift from the river. NR 118.07(8)(g)(g) Existing vegetation may be removed within one foot on either side of the lift route and up to 8 feet above the lift floor. NR 118.07(8)(h)(h) Only one lift may be permitted on a lot that abuts the Lower St. Croix river. NR 118.07(9)(9) Public roads and private roads serving 2 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 2 or more properties or single-family residences if all of the following conditions are met: NR 118.07(9)(a)(a) No new road may be constructed in slope preservation zones, in an area 40 feet landward of blufflines, within 200 feet of the river, within 100 feet of tributary watercourses or in wetlands. NR 118.07(9)(b)(b) 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. NR 118.07(9)(c)(c) 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. NR 118.07(9)(d)(d) Cutting or clearing vegetation for road right-of-way maintenance shall be conducted in accordance with the following requirements: NR 118.07(9)(d)1.1. 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. NR 118.07(9)(d)2.2. 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. NR 118.07(9)(d)3.3. 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. NR 118.07(9)(d)4.4. Cutting of trees more than 4 inches in diameter breast height is prohibited, except that trees that pose a hazard to public health or safety may be removed. NR 118.07(10)(10) Bed and breakfast operations. A conditional use permit may be issued for a bed and breakfast operation if all of the following requirements are met: NR 118.07(10)(a)(a) The bed and breakfast operation provides 4 or fewer rooms for rent to transient visitors. NR 118.07(10)(b)(b) The bed and breakfast operation has sufficient parking spaces on their lot or on public roads for the guests. NR 118.07(11)(11) Home occupations. A conditional use permit may be issued for the use of a single-family residence for a home occupation if all of the following requirements are met: NR 118.07(11)(a)(a) The owner or person who rents the residence on a full-time basis conducts the home occupation. NR 118.07(11)(b)(b) The home occupation is conducted inside of the residence and is subordinate to the use of the home as a principal residence. NR 118.07(11)(d)(d) If the home occupation causes additional persons to visit the residence, sufficient parking is provided on the lot or on public streets. NR 118.07(12)(12) Nature-oriented educational, non-profit facilities. A conditional use permit may be issued for a nature-oriented educational, non-profit facility if all of the following requirements are met: NR 118.07(12)(a)(a) The facility will not cause environmental pollution or erosion. NR 118.07(12)(b)(b) The facility has sufficient parking on its property or on public streets for patrons to park. NR 118.07 HistoryHistory: Cr. Register, June, 1980, No. 294, eff. 7-1-80; am. (2) (c), (d), (e) 1. and 2., Register, February, 1984, No. 338, eff. 3-1-84; am. (2) (a) and (d) (intro.), Register, August, 1986, No. 368, eff. 9-1-86; CR 03-054: r. and recr. Register October 2004 No. 586, eff. 11-1-04. NR 118.08NR 118.08 Nonconforming uses and structures and substandard lots. NR 118.08(1)(1) Nonconforming uses. A nonconforming use may not be expanded or enlarged. An increase in the volume, intensity or frequency of use is allowed if the area used for the nonconforming use is not enlarged. A change from one nonconforming use to another nonconforming use is not allowed. If a nonconforming use is discontinued for a period of 12 months, any future use of the building and premises shall conform to all of the requirements of the local zoning ordinance. NR 118.08(2)(2) Nonconforming principal structures. In all management zones, ordinary maintenance and repair of nonconforming principal structures is allowed. However, structural alteration, reconstruction and expansion of nonconforming principal structures and replacement, improvement or structural alteration of the foundation may only be allowed if all of the following requirements are met, where applicable: NR 118.08(2)(a)(a) Reconstruction of nonconforming principal structures. Nonconforming principal structures located within the ordinary high water mark setback area, bluffline setback area or slope preservation zone may be structurally altered or reconstructed and foundations may be replaced, improved or structurally altered if all of the following requirements are met: NR 118.08(2)(a)2.2. The altered or reconstructed structure will be visually inconspicuous or will be rendered so through mitigation in accordance with sub. (5). NR 118.08(2)(a)3.3. The structure is altered or reconstructed in the same footprint as the pre-existing structure. NR 118.08(2)(a)4.4. The height of the altered or reconstructed structure complies with s. NR 118.06 (1) (d). The reconstructed structure may not be any taller than the pre-existing nonconforming structure, except that a flat roof may be replaced with a pitched roof. NR 118.08(2)(a)6.6. The property owner submits a mitigation plan that complies with the requirements of sub. (5). If a permit is issued for the reconstruction, the mitigation plan shall be approved, or modified and approved, by the local zoning authority. The mitigation plan shall be incorporated into the permit and the property owner shall be required to implement the mitigation plan as a permit condition. NR 118.08(2)(a)7.7. Private on-site wastewater treatment systems are brought into compliance with the requirements of ch. SPS 383. NR 118.08(2)(a)8.8. The foundation of the structure may not be replaced, improved or structurally altered. Notwithstanding the definition of “reconstruction” in s. NR 118.03 (36) and the preceding sentence, the foundation of the structure may be replaced, improved or structurally altered in conjunction with the reconstruction of the structure if the entire structure is more than 50 feet from the ordinary high water mark and is not located in a slope preservation zone. NR 118.08(2)(a)9.9. An erosion control plan and revegetation plan shall be submitted to the local zoning authority for approval, or modification and approval, prior to the issuance of a permit for the structural alteration or reconstruction. NR 118.08(2)(a)10.10. There will be no filling and grading activities conducted during the alteration or reconstruction, except for the minimum necessary to accomplish the alteration or reconstruction in compliance with other provisions of this chapter, and as needed to upgrade a private on-site wastewater treatment system, to replace sewer or water laterals, or to install storm water or erosion control measures. NR 118.08(2)(a)11.11. If the nonconforming principal residence is located in a slope preservation zone, it may be reconstructed only if Wisconsin construction site best management practices applicable to steeper sloped areas are implemented to control erosion. NR 118.08 NoteNote: Approved best management practices for construction site erosion control can be found in Wisconsin’s Construction Site Best Management Practice Handbook (WDNR Pub. WR-222 November 1993 Revision) which is available from the Wisconsin Department of Administration, Document Sales, 4622 University Avenue, Madison, WI 53705-2156.
NR 118.08(2)(b)(b) Expansion of nonconforming principal structures. Nonconforming principal structures located in the ordinary high water mark setback area or bluffline setback area may be expanded and the pre-existing foundation may be replaced, repaired or structurally altered in conjunction with the expansion if all of the applicable following requirements are met: NR 118.08(2)(b)1.1. Structures located wholly or partially within 50 feet of the ordinary high water mark may not be expanded. NR 118.08(2)(b)2.2. Structures located wholly or partially within slope preservation zones may not be expanded. NR 118.08(2)(b)3.3. Structures entirely set back more than 50 feet from the ordinary high water mark but located wholly or partially less than 75 feet from the ordinary high water mark may be expanded only if there is no compliant building location available on the lot. NR 118.08(2)(b)4.4. Structures entirely set back more than 75 feet from the ordinary high water mark may be expanded regardless of whether a compliant building location exists elsewhere on the lot. NR 118.08(2)(b)6.6. The expanded structure will be visually inconspicuous or will be rendered so through mitigation. NR 118.08(2)(b)7.7. Any reconstructed portion of the nonconforming structure may only be reconstructed in the same footprint as the pre-existing structure. Notwithstanding the definition of “reconstruction” in s. NR 118.03 (36), the pre-existing foundation of a structure that is more than 50 feet from the ordinary high water mark and is not within a slope preservation zone may be replaced, repaired or structurally altered in conjunction with the expansion of the structure. NR 118.08(2)(b)8.8. For structures located wholly or partially within the ordinary high water mark setback area, the total footprint of the structure may not exceed 1500 square feet. NR 118.08(2)(b)9.9. For structures located wholly or partially within the bluffline setback, but not within the ordinary high water mark setback area, the total footprint of the structure may not exceed 2000 square feet and the structure shall comply with all of the requirements in s. NR 118.06 (1) (f) 4. NR 118.08(2)(b)10.10. Expansion is on the side of the structure farthest from the river or, if landward expansion is not possible, the expansion is parallel to the ordinary high water mark or bluffline. NR 118.08(2)(b)13.13. The property owner submits a mitigation plan that complies with the requirements of sub. (5). If a permit is issued after a mitigation plan is approved, or modified and approved, by the local zoning authority, the mitigation plan shall be incorporated into the permit and the property owner shall be required to implement the mitigation plan as a permit condition. NR 118.08(2)(b)14.14. Private on-site wastewater treatment systems are brought into compliance with the requirements of ch. SPS 383. NR 118.08(2)(b)15.15. An erosion control plan and revegetation plan shall be submitted to the local zoning authority for approval, or modification and approval, prior to the issuance of a permit for the expansion. NR 118.08(2)(b)16.16. There will be no filling or grading conducted as part of the reconstruction or expansion except as necessary to reconstruct or build the expansion in compliance with other provisions of this chapter, upgrade a private on-site wastewater treatment system, replace sewer or water laterals, or install storm water or erosion control measures. NR 118.08(3)(3) Nonconforming accessory structures. In all management zones, ordinary maintenance and repair of nonconforming accessory structures is allowed. Nonconforming accessory structures may not be structurally altered, reconstructed or expanded, except that garages and storage sheds may be structurally altered, reconstructed or expanded if all of the following requirements are met where applicable: NR 118.08(3)(a)(a) The entire garage or storage shed is not located in a slope preservation zone. NR 118.08(3)(b)(b) The entire garage or storage shed is set back more than 75 feet from the ordinary high water mark. NR 118.08(3)(c)(c) The garage or storage shed is not used for human habitation. NR 118.08(3)(d)(d) The total footprint of all nonconforming accessory structures, other than existing driveways, within 75 feet of the ordinary high water mark, within a slope preservation zone or within the bluffline setback area may not exceed 500 square feet. NR 118.08(3)(e)(e) The garage or storage shed is built with earth-tone building materials that are non-reflective, except that windows may be made of ordinary window glass or non-reflective glass, but may not be made of glass designed to reflect more light than ordinary window glass. NR 118.08(3)(f)(f) Mitigation measures are implemented and maintained that comply with the requirements of sub. (5). NR 118.08(3)(g)(g) The structure is visually inconspicuous or will be rendered so through a mitigation plan that complies with sub. (5). NR 118.08(4)(4) Substandard lots. Lots of record in the register of deeds office on January 1, 1976, or on the date of the adoption of an amendment to a riverway ordinance that makes a lot substandard, which do not meet the requirements of this chapter, may be allowed as building sites provided that the following criteria are met:
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