Agenda - Council Work Session - 10/17/2023 - Special

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1 3. Identification and application of techniques to minimize the perceived bulk of the 2 proposed structure, such as: 3 (i) Placing the long axis of the building perpendicular to the river; 4 (i i) Stepping back of portions of the facade; 5 (iii) Lowering the roof pitch or use of a flat roof; 6 (iv) Using building materials or mitigation techniques that will blend in with the 7 natural surroundings such as green roofs, green walls, or other green and 8 brown building materials; 9 (v) Narrowing the profile of upper floors of the building; 10 (vi) Increasing the setbacks of the building from the Mississippi River or 11 blufflines; 12 (vii) Identification of techniques for preservation of those view corridors 13 identified in the MRCCA plan; and 14 (viii) Opportunities for creation or enhancement of public river corridor views. 15 (3) Structure and impervious surface placement. 16 a. Structures and impervious surface must not be placed in the shore or bluff impact zones 17 unless identified as an exemption in section 920(L). 18 b. Structures and facilities must comply with the following OHWL setback provisions 19 unless identified as exempt in section 920(L): 20 1. ROS District: 200 feet from the Mississippi River. 21 2. RN District: 100 feet from the Mississippi River and :75 leel.f^^+fhen, ther—nm thin Q„^^ °;,,^r 22 C. Structures and facilities must comply with the following bluffline setback provisions 23 unless identified as exempt in section 920(L): 24 1. ROS District: 100 feet. 25 2. RN District: 40 feet. 26 3. SR District:40 feet. 27 d. Where principal structures exist on the adjoining lots on both sides of a proposed 28 building site, the minimum setback may be altered to conform to the average of the 29 adjoining setbacks, provided that the new structure's scale and bulk riverward or 30 bluffward of the setbacks required under section 920(F)(3) consistent with adjoining 31 development. See Figure 6. Figure 6.Structure Setback Averaging Structure Setback Averaging Re wired Existing Proposed Existing 9 principal .1 principal principal structure Average setback _ structure T i structure s. ^__ structure — — structure L._................._._._..._.._... setback x x•Y=z Y �., Shore 4 No structures in the SIZ Impact a eHtunm Zane(5►) In OHWL The scale and bulk of a proposed principal structure must be consistent with existing principal structures. 32 33 e. Subsurface sewage treatment systems, including the septic tank and absorption area, 34 must be located at least 75 feet from the ordinary high water level of the Mississippi 35 River and all other public waters. 36 (4) Lot size and buildable area. Page 106 of 160