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7/20/99 By: Peter Knaeble, P.E. (Terra Engineering Inc.) <br /> Preserve Estates, Elk River, MN <br /> • Requirements per Elk River <br /> Shoreland PUD Ordinance" <br /> Tier dimension 400' "Suitable Area" is area w/i each tier excluding <br /> (Natural Envir. Lake, Wirtz Pond, unsewered) wetland, bluffs, and land below OHW. There is <br /> no "bluff" area on this site. <br /> "Suitable Area"within Tier 1 15.6 ac. (wetland = 0.4 ac.) <br /> (400'from Wirtz Pond OHW) <br /> "Suitable Area"within Tier 2 17.1 ac (wetland = 0.7 ac.) <br /> (400-800' from Wirtz Pond OHW) <br /> "Suitable Area"within Tier 3 11.2 ac. (wetland = 3.5 ac.) <br /> (800+'from Wirtz Pond OHW) <br /> Single family residential lot size standard 2.5 ac. <br /> (within 1000' of Wirtz Pond OHW) <br /> "Base Density" Tier 1 6.2 lots <br /> "Base Density"Tier 2 6.8 lots <br /> "Base Density"Tier 3 4.5 lots <br /> Total "Base Density" 17.6 lots <br /> "Base Density Bonus" <br /> Allowed if: <br /> - 50% of total site is open space (may include wetland areas) <br /> � <br /> 'dividual on-site sewage systems must have Association maintenance agreement (per Larry Krampka of DNR) <br /> back increased from 25% from 150'to 188' from OHW (with vegetative management) <br /> Cummulative <br /> Max. Max. Max. <br /> Base Max. Density Total Total <br /> Density Density Increase Density Density <br /> (units) Increase (units) (units) (units <br /> Tier 1 6.2 50% 3.1 9.4 9.4 <br /> Tier 2 6.8 100% 6.8 13.7 23.0 <br /> Tier 3 4_5 200% 9.0 13.4 36.5 <br /> Total 17.6 36.5 <br /> (Unit numbers may be transferred to a higher tier, <br /> but not to a lower tier) <br /> Proposed Prelimary Plat: <br /> No. of lots 27 (incl. ex. house) <br /> Total site area (ac.) 72.8 <br /> Total area of Open Space (ac.) 36.4 % of total site =50.0% <br /> No. homes in Tier 1 4 Ex. house at 170' setback, the rest <br /> No. homes in Tier 2 18 are at 188'+ setback from Wirtz Pond OHW. <br /> No. homes in Tier 3 . <br /> Total 27 <br /> • <br />