NR 118.06(1)(e)(e) Ordinary high water mark setback. Except as provided in par. (g), the ordinary high water mark setback shall be measured on a horizontal plane from the point of the structure that is nearest the ordinary high water mark, including roof overhangs and any cantilevered portions of the structure. The ordinary high water mark setback for each management zone shall be as follows: NR 118.06(1)(e)1.1. In the river town, small town and small town historic management zones, all structures, except piers, wharves, structural erosion control measures, stairways and lifts, shall be set back at least 100 feet from the ordinary high water mark. NR 118.06(1)(e)2.2. In the rural residential and conservation management zones, all structures, except piers, wharves, structural erosion control measures, stairways and lifts, shall be set back at least 200 feet from the ordinary high water mark. NR 118.06(1)(f)(f) Bluffline setback. Except as provided in par. (g), the bluffline setback shall be measured on a horizontal plane from the point of the structure that is nearest the bluffline, including roof overhangs and any cantilevered portions of the structure. The bluffline setback for each management zone shall be as follows: NR 118.06(1)(f)1.1. In the river town, small town and small town historic management zones, all structures except piers, wharves, structural erosion control measures, stairways and lifts, shall be set back at least 40 feet from the bluffline. NR 118.06(1)(f)2.2. In the rural residential management zone, all structures, except piers, wharves, structural erosion control measures, stairways and lifts, shall be set back at least 100 feet from the bluffline or meet the performance standards outlined in subd. 4. NR 118.06(1)(f)3.3. In the conservation management zone, all structures, except piers, wharves, structural erosion control measures, stairways and lifts, shall be setback at least 200 feet from the bluffline or meet the performance standards outlined in subd. 4. NR 118.06(1)(f)4.4. In the rural residential management zone and conservation management zone, structures that do not meet the requirements of subd. 2. or 3. may be permitted within the bluffline setback area if they are set back at least 40 feet from the bluffline and meet all of the following performance standards: NR 118.06(1)(f)4.a.a. The structure does not protrude above the bluffline as viewed from at or near the mid-line of the river or from 250 feet riverward from the shoreline, whichever is less. NR 118.06(1)(f)4.c.c. The structure utilizes earth-tone building materials that are of a non-reflective nature, 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 118.06(1)(g)(g) If, prior to November 1, 2004, a local unit of government has measured the ordinary high water mark setback or bluffline setback, or both, under its Lower St. Croix riverway ordinance to the nearest point of the foundation of a structure instead of measuring to roof overhangs, the local unit of government may continue to measure the ordinary high water mark setback and bluffline setback on a horizontal plane from the foundation of the structure at the point nearest to the ordinary high water mark or bluffline. The local unit of government shall measure the ordinary high water mark setback and the bluffline setback on a horizontal plane from the point of any cantilevered portions of the structure that is nearest the ordinary high water mark or bluffline. For new structures constructed after November 1, 2004, if the local unit of government continues to measure the ordinary high water mark or bluffline setback, or both, from the nearest point of the foundation of a structure instead of from roof overhangs, the local unit of government shall limit roof overhang width to no more than 3 feet. The local unit of government shall also require any cantilevered portion of the structure other than roof overhangs to be set back from the ordinary high water mark as required in par. (e) and to be set back from the bluffline as required in par. (f). NR 118.06(2)(2) Structure color standards. The following structure color standards shall apply: NR 118.06(2)(a)(a) In all management zones, structures designated as historic buildings or located in designated historic districts shall be either earth-tone colored or colored appropriate to the period in history for which they were designated. NR 118.06(2)(b)(b) Except as provided in par. (a), in the river town management zone, structure color requirements shall be determined by local zoning ordinance. NR 118.06(2)(c)(c) Except as provided in par. (a), in the small town, small town historic, rural residential and conservation management zones, all new, expanded or reconstructed structures shall be earth-tone colored. NR 118.06(3)(3) Sign standards. Signs are allowed in all management zones if one or more of the following criteria are met: NR 118.06(3)(a)(a) The sign is approved by state or local government and is necessary for public health or safety. NR 118.06(3)(b)(b) The sign indicates areas that are available or not available for public use. NR 118.06(3)(c)(c) The sign is not visible from the river and is otherwise lawful. NR 118.06(4)(4) Structural erosion control measures. Except for rock rip-rap that is allowed in compliance with the requirements in s. NR 118.05 (1) (a) 2. d., structural erosion control measures may only be placed above the ordinary high water mark and within the ordinary high water mark setback area and bluffline setback area if all of the following criteria are met: NR 118.06(4)(a)(a) The structural erosion control measure is constructed outside of slope preservation zones, or a conditional use permit has been issued in compliance with the requirements of s. NR 118.07 (6). NR 118.06(4)(b)(b) 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 118.06(4)(c)(c) The structural erosion control measure is constructed of natural materials and is made as visually inconspicuous as possible. NR 118.06(4)(d)(d) 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 118.06(5)(5) Slope preservation zone standards. No structures, except piers, wharves, structural erosion control measures, stairways and lifts, may be placed in slope preservation zones. Slopes greater than 12% may not be altered to become less than 12%. NR 118.06(6)(a)(a) Goals. All of the following goals apply to all management zones: