Laserfiche WebLink
to better infiltrate the flow from the driveway and houses. The driveway pavement will <br /> slope to a catch basin in the driveway and the catch basin will drain to a 21'x2'x2' <br /> infiltration trench. The house downspouts will drain to a 561f x 2' x 2' infiltration trench. <br /> The site is located on Parcel 00495800701003. The site address is to be determined <br /> This project will pave 2,226sf of existing brush and ivy with pavement or roofs The <br /> project proposes to construct a new 1,838sf Single Family Residence and a 699sf <br /> driveway. See site plan. <br /> Section 3 Existing Site Condtion <br /> The site is currently vacant and covered with grass and ivy with some trees. The soils <br /> are sandy. There is a steep slope going down to the east of the site. The alley serving the <br /> site is gravel.No offsite flows appear to enter the site. <br /> Section 4 Adjacent Areas <br /> To the north and east of this site is the Pacific Northwest Traction Company Right of <br /> Way and Substation,to the south is Lot 2 which will also be developed into a SFR and <br /> another SFR and Lowel Road. To the west is the gravel alley and a single family home. <br /> Section 5 Critical Areas <br /> There is a steep slope to the north and east of the site. <br /> Section 6 Soil <br /> Per the SCS Soil Map the soils in this area are Alderwood(5)with moderate erodibility <br /> but the Anstey Engineering Soil investigation found the soils to be medium sands. <br /> Section 7 Potential Erosion Possibility <br /> As the site is moderately to steeply sloped there is some possibility of erosion. However <br /> this is a small site with limited clearing and pervious soils so there should not be enough <br /> surface water to cause any significant erosion. The silt fence, mulching exposed soil, and <br /> proper construction methods should prevent erosion from occurring on the site. <br /> Section 8 Construction Phasing <br /> This is a small project and will be done in one phase. <br /> Section 9 Construction Schedule <br /> Construction will start this summer as soon as permits are obtained and should be <br /> complete by this winter. <br /> Section 10 Financial Ownership <br /> Richard Vaisvila will have ownership of this project. <br /> Section 11 Engineering Calculations <br /> Due to the small size of this project no Engineering Calculations are required <br /> Section 12 Responsible Person <br /> The person responsible for this project is: Richard Vaisvila richardvaisvila(a,comcast.net <br /> Phone: 425-299-1739 <br />