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<br />nrvTISIOI'J 12. SHORELAt'ID IvIA1~AGElviENT*
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<br />f. Allowable densities may be transferred from any tier to any other tier further from the shoreland lake or
<br />river, but shall not be transferred to any other tier closer.
<br />(2) Design criteria. The design criteria are as follows:
<br />a. Commercial planned unit developments shall contain open space meeting all of the following criteria:
<br />1. At least 50 percent of the total project area shall be preserved as open space.
<br />2. Dwelling units or sites, .road rights-of-way, or land covered by road surfaces or parking areas, except
<br />water-oriented accessory structures or facilities, are developed areas and shall not be included in the
<br />computation of open space.
<br />3. Open space shall include areas with physical characteristics unsuitable for development in their natural
<br />state, and areas containing significant historic sites or unplatted cemeteries.
<br />4. All shore impact zones within commercial planned unit developments shall be included as open space, and
<br />at least 50 percent of these areas shall be preserved in their natural or existing state.
<br />5. Open space may include outdoor recreation facilities for use by guests staying in dwelling units or sites, or
<br />the public.
<br />6. Open space may include subsurface sewage treatment systems ifuse of the space is restricted to avoid
<br />adverse impacts on the systems.
<br />b. Design of structures and facilities shall be done according to the following standards:
<br />1. Commercial planned unit developments shall be connected to publicly owned water supply and sewer
<br />systems, if available. On-site water supply and sewage treatment systems shall be designed and installed to
<br />meet or exceed applicable rules of the state department of health and sections 30-2022 and 30-2028. On-site
<br />sewage treatment systems shall be located on the most suitable areas of the development, and sufficient lawn
<br />area free of limiting factors shall be provided for a replacement soil treatment system for each sewage system.
<br />2. Dwelling units or sites shall be located on suitable areas of the development. They shall be designed and
<br />located to meet or exceed the following dimensional standards for the relevant shoreland classification:
<br />setback from the ordinary high-water level, elevation above surface water features, and maximum height.
<br />Maximum density increases may only be allowed if structure setbacks from the ordinary high-water level are
<br />increased to at least 50 percent greater than the minimum setback, or the impact on the water body is reduced
<br />an equivalent amount through vegetative management, topography or other means acceptable to the city and
<br />the setback is at least 25 percent greater than the minimum setback.
<br />3. Structures, parking areas, and other facilities shall be designed and located in a manner that minimizes
<br />their visibility from surface water features, assuming summer, leaf-on conditions. The structure, dwelling unit,
<br />accessory structure, or parking area shall be treated to reduce visibility as vie"\\7ed from public waters and
<br />adjacent shorelands by vegetation, topography, increased setbacks, color, or other means acceptable to the
<br />city, assuming summer, leaf-on conditions. Vegetative and topographic screeningshall be preserved, if
<br />existing, or may be required to be provided.
<br />4. Water-oriented accessory structures and facilities may be located within shore impact zones if they meet
<br />or exceed design standards contained in section 30-2022.
<br />5. Shore recreation facilities, including but not limited to swimming areas, docks, and watercraft mooring
<br />areas and launching ramps, shall be centralized and located in areas suitable for them. Evaluation of suitability
<br />shall include consideration of land slope, water depth, vegetation, soils, depth to groundwater and bedrock, or
<br />other relevant factors. The number of watercraft allowed to be continuously beached, moored, or docked shall
<br />not exceed one for each allowable dwelling unit or site in the first tier, notwithstanding existing mooring sites
<br />in an existing harbor. Launching ramp facilities, including a small dock for loading and unloading equipment,
<br />may be provided for use by occupants of dwelling units or sites located in other tiers.
<br />c. Erosion control and stormwater management facilities for commercial planned unit developments shall:
<br />1. Be designed, and their construction managed, to minimize the likelihood of serious erosion occurring
<br />either during or after construction. This shall be accomplished by limiting the amount and length of time of
<br />bare ground exposure. Temporary ground covers, sediment entrapment facilities, vegetated buffer strips, or
<br />other appropriate techniques shall be used to minimize erosion impacts on surface water features. Erosion
<br />control plans approved by the soil and water conservation district may be required if project size and site
<br />physical characteristics warrant.
<br />2. Be designed and constructed to effectively manage reasonably expected quantities and qualities of
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<br />http://library4.mumcode. com/mcclDoc Vi ew/13 427/1/66/84/96 5/9/2006
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