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Zoning 1-iIc #1970 <br />October 12. 1994 <br />Face 2 <br />- Hardcover Site Plan <br />G - Hardcover Fact Sheets <br />H - Gustafson Report 10 5 94 <br />I - Grading and Drainage Plan <br />J - Soil Bi>ring Report <br />K - Biiring Map ^ r> i c u,i •L - Preliminary Grading Plan Submitted with Preliminary Subdivision <br />M . Street Elevation-Height Determination <br />N - Side aiKl Rear Elevations <br />Description of Request <br />Aoplxani proposes consmiction of a new residence ihai will require removal of <br />approximaielv 450 cubic yards of poor srrils and replacement with suiublc granular material. <br />Review Exhibit 1 Applicant will store fill during construction to the southwest corner ol the <br />nropertv. Review the grading plan. Exhibit 1. changes in elevation must prov.de posmve <br />drainage away from structure directing drainage to ditch along the east side ol property line. <br />Note grade chances at the south and east side of garage on property to west. Ihc plan would <br />bring drainage to a catch basin that would drain via an underground tile across the rear yard ol <br />the subject property to the drairuice ditch ut the e«.ist. <br />Review Exhibit H The Engineer is concerned that the proposed grading plan will not <br />provide adequate drainace or retention during heavy storms to protect lower level ot garage on <br />lot to the west. The proposed elevations will not maintain the natural drainage to the et^t. <br />Gustafson recommends that applicant provide a nw'dified drainage svyale instead of c <br />underground pipe. He notes that if applicant preiers the underground pipe s>stem, that <br />applicLt ’s encincer provide the necessary hydraulic infon.iuion to assure tliat it is designed to <br />carrv' a lOO-y^ar storm frequency with a high water level at least one foot below the garage <br />flw’r. 1 he City will ask for a permanent drainage easement over the drainageway at a mimmu <br />width of 10*. <br />Gustafson also cautions the building department in reviewing the foundation plans noting <br />the results of soil boring #2 and advises of a potential settlement problem. <br />The City is in receipt of a supportive letter from Mr. Terry Lindgrcn (owner of property <br />to west) who supports the request to alter elevations on his property. BcUh Mr. Wold and N r. <br />Lindgren will be required to file for a joint land alteration permit from the City when final . <br />grading commences next spring.