01-11-1988 - Agenda Packet City Council - regular meeting

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zoning File #1223 November 11, 1987 Page 2 3. Hardcover 0-75' Zone: Existing - 1107 s.f. per applicants calculations (or 19.7%) Proposed - Applicant proposes to remove the house portion of the hardcover by installation of gutters and a sealed pipe straight to the lake. He also proposes reducing the area of steps to the lake as a result of the grading of a portion of the bank. 'Additional hardcover proposed is a 165 s.f. deck, and an additional 19 s.f. of steps through retaining walls. Applicant suggests that this results in a net removal of 700 s.f. of hardcover in the 0-75' zone resulting in a final hardcover of 7.2%. Staff would note that the direct transportation of roof runoff water to the lake through a pipe is directly contrary to the City's philosophy that all roof and other hard surface runoff should travel over and through the ground surface for filtration purposes prior to reacting the lake. Under current City philosophy, applicant's proposal merely lnc:reases the 0-75' hardcover from 19.7% to 22.1 % calculated as follows: 834 s.f. of roof area 127 s.f. deck near the lake 43 s.f. concrete half circle 54 s.f. steps to the lake 164 s.f. deck prc p& s-vd 19 s.f. of stews through retaining Nall 1241 s.f. + 5625 s.f in 0-75' zone = 22.1% hardcover Discussion - Applicants situation is similar to many others around the lake where steep lakeshore banks have suffered severed bank erosion over the summer due to the "super storm". The City Engineer has viewed this site and feels it is no different than any other situation along the lake where steep banks have erodes'. Ile states that there are numerous methods of repair to this lakeshore bank that would not require grading out of a walkout area for the house. I would ask ycu to read applicants letter of request. I would also ask you to read the memorandum from the Conservation District, and then ask you to read the City Engineer's letter which recommends denial of the request to create the walkout. Staff would note that the majority of existing properties in the neighborhood have not created a walkout by cutting down the lakeshore bank in the manner proposes? An exception to this is the Backstrom residence at 1973 Fagerness Point Road which was excavated out some years ago, apparently prior to the 1975 adoption of current lakeshore ordinances. In addressing certain of the applicants concerns and hardships, staff would note the following: I. Staf f agrees that a system of vertical retaining wa 1 1 s along the entire slope would be aestheticaliy less pleasing from the lakeshore view than a grassy vegetated slope without vertical retaining walls.