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General Engineering CompanyGUMMI 608-742-2169(Office) <br /> P.O. Box 340 1111110W <br /> 608-742-2592(Fax) <br /> 916 Silver Lake Drive aec@cieneralenaineering.net <br /> Portage,WI 53901 www.generalengineering.net <br /> Engineers • Consultants • Inspectors <br /> TO: Dane County—Water Resources Engineering Division <br /> FROM: Kory D. Anderson, P.E. <br /> DATE: June 10, 2020 <br /> SUBJECT: Dane County Erosion and Sediment Control Plan <br /> GEC# 2-0715-257 <br /> Mr. Hagey wishes to construct a garage with a gravel driveway on his property located at 8237 <br /> Emerald Terrace in the Town of Roxbury, Wisconsin. Additional grading will be necessary to tie <br /> proposed contours to the existing contours present on site. The existing gravel driveway on the <br /> property will also be removed, as well as the existing 24" culvert. A new squash 30" culvert will <br /> also be installed beneath the proposed driveway. With the proposed garage and gravel <br /> driveway in combination with the removal of the existing driveway, imperviousness will exceed <br /> the allowable limit by approximately 400 SF. This will require mitigation of 400 SF of area <br /> through the use of permeable pavers.. <br /> In compliance with Dane County Ordinances, Mr. Hagey is submitting the Erosion Control <br /> Permit Application (Shoreland) and will install the erosion and sediment control measures <br /> outlined in Drawing C1.0 to prevent detrimental impacts to waters of the state. <br /> Mr. Hagey plans to utilize his existing gravel drive for tracking prevention/control prior to its <br /> removal but will not be continuously entering and exiting the construction site with equipment, <br /> which is common practice for larger construction projects. <br /> The existing culvert to be replaced is a 24" culvert. The existing culvert has not had any capacity <br /> problems, so it is assumed that replacing with a new, larger size pipe will have no impacts on <br /> the available capacity or velocity of storm events passing through the culvert. <br /> Mr. Hagey plans to start and complete the work in the Summer of 2020 including site <br /> stabilization. Seeding and fertilizer information can be found below. <br /> Fertilizer shall be applied prior to seeding at a rate of seven pounds per 1000 square feet. The <br /> latest seeding shall be completed on or before September 15th <br /> Portage • Black River Falls • La Crosse <br /> GEC Consulting Engineering•Structural Engineering•Building Design•Environmental Services•Building Inspection•GIS Services <br /> Grants&Funding Services•Land Surveying•Zoning Administration•Mechanical,Electrical,&Plumbing Services GEC <br />