05-23-1994 Council Packet - Laserfiche WebLink

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Zoning #1919 May 13. 1994 Page 3 With the new definition of "top of bluff" adopted and in effect. Exhibit D indicates tlK bluff and bluff impact zone. Comparing this to the grading plan, only a minor encroachment to the bluff impact zone is necessary. Grade reductions in the bluff impact zones are not strictly prohibited (although filling is) but are subject to strict erosion control measures. Grading; Han The new grading plan was submitted Monday. .May 9ih. The City Engineer reviewed this at the site on May 11th and suggested that drainage from the south half of the property be directed westward towards the lake rather than around to the north. This can be accomplished by grading a swale in the south side yard, to drain toward the lake. This concept was approved with the Holtzer application for this property in 1979, and included 0-75 ’ grading in order to make sure no drainage will flow towards the Smerling property. The volume from this half of the property is not anticipated to pose problems for lakeshore bank stability. The north half of the lot has the option of draining straight west towards the lake (to accomplish this would require e.xtensive fill/regrading in the 0-75 ’ zone) j2£ allow to drain across Shuits property as it does now. • Redirecting drainage to flow west toward the lake is, in the opinion of the City Engineer, more likely to cause bank instability around Bucey’s lake stairway and the Shutts and Bucey boat houses, than if runoff is allowed to continue draining across Shutts’ yard with its more gradual slope. • Slight channeling on the Bucey property likely will reduce drainage towards Shutts’ house, directing it past the house. The above factors hold true whether or not the grade is lowered the full 3’ necessary ’ to accommodate a lakeside walkout door. The grading plan proposed will leave the view from the lake nearly unchanged due to "side discharge" of drainage towards Shutts’ yard. The amount of excavation in the 0-75 ’ zone is minimal. This is not the classic case of "excavating the lakeshore bank to create a walkout" that the City has regularly denied. The grade is not proposed to be drastically altered to expose the face of a basement wall. The walkout could be accomplished without any 0-75' grading by establishing a retaining wall "crib" at the walkout door (creating a "walkup" with potential sump needed), but some 0-75 ’ grading will likely be needed regardl *ss. in order to accomplish swaling needed to protect the neighboring propierties and lakeshore banks.