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� <br /> �t �f <br /> Projf�ct Overvieti�% <br /> This Stormwater Runo(f Control Anaiysis addresses the proposed site redevelopments at the <br /> Community Transit Kasch Park Operating Base. Com!nunity Transit has expanded their faciliry to <br /> include Ihe property at 2312 West Casino Road,which is across the street from the current operating <br /> base. Redevelopment at the newty acquired parcel will mclude adding two paved access driveways <br /> from Kasch Park Road,site fencing, loading dock modifications, interior remodeling,and <br /> corresponding storm drainage modifications. Site redevelopments at the existing I<asch Park <br /> Operating Base will include re-grading and paving of an existing parking lot, interinr remodeiing in <br /> several buildings, as well as a building addition to the existing Bus Wash facility. <br /> Storin drainage runo(f analysis for the two sites is as fotlo�vs. <br /> 2312 West Casino Road Property <br /> EXISTING CONDITIONS <br /> The existing property at 2312 West Casino Road is developed with a 55.470 square-foot footprint <br /> building and parking areas. The property is 5.92 acres,and is currenUy 84 percent impervious <br /> surfaces. The remainmg impervious surfaces consist of asphalt pavemen[and concrete sidewalks. <br /> The paved portion of the site slopes to the nor[h east,dropping 6.5 feet in 693 feeL The north and <br /> south ends of the property consist of landscaped areas,30 to 60 fee[wide,that slope more steeply. <br /> as m�ch as 3:1,[o[ie into the adjacent roadways. The existing paved parking lot has a storm runoff <br /> collr,ction and conveyance system tha[routes the on-site storm runoff through a detention pipe prior to <br /> discharge into the storm drain main in West Casino Road. <br /> F�EDEVELOPED CONDITIONS <br /> The redeveloor�ent on the Casino Road property inciudes conslruction of hvo new driveways from <br />� V<asch Park road. A 40-foot-wide driveway will be provided at the east edge of the properry frontage, <br /> and a 32-foot-wide driveway will be provided a[the west edge. The driveways will connect[o Kasch <br /> Parle Road with 35400t-radius ciub retums. The existing condition in Ihe propo�ed driveway area <br /> consists of grass and some Irees on land sloping from the roadway into the si[e at 5 to 10 percent. <br /> , The driveway entrances will extend approximately 85 feet W tie into the existing paved area <br /> �I <br /> surrounding the existing building. S[ormwater runoff from the new pavement will en[er the existing <br /> on site stonnwater collection and conveyance system to discharge at Ihe same location as in the <br /> � <br /> existing conddion. <br /> Community Translt <br /> 1 <br /> V46rh PArk OPeraling 9es� <br />