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II <br /> IMPERVIOUS SURFACES CALCULATIONS , 009 <br /> Single-family (R-2) <br /> Total Tract Area: 290.03 Ac. (12,633,710 s.f. ) <br /> Pavement- 9,600 l.f. @ 37' (Graham Dr. & Hamilton Way) 355,200 s.f. <br /> 18,100 1.1. @ 20' (all other roads) 362,000 s.f. <br /> 5.7 % impervious surfaces 717,200 s.f. <br /> Multi-family (R-5) <br /> Total Tract Area: 29.50 Ac. (1,285,020 s.f.) <br /> Pavement- 1,320 1.f. @ 2 x 24' (Scotswood Blvd.) 63,360 s.f. <br /> 1,020 1.1. @ 33' (circulation roads) 33,660 s.f. <br /> 3,240 1.f. @ 20' (circulation roads) 64,800 s.f. <br /> 444 @ 9' x 20' (parking) 79,920 s.f. <br /> 8,100 1.f. @ 4' (sidewalks) 32,400 s.f. <br /> 274,140 s.f. <br /> Buildings- 216 @ 16' x 30' <br /> 103,680 s.f. <br /> Recreation- Tennis Courts 12,000 s.f. <br /> Pool and Club House Area 11,500 s.f. <br /> 23,500 s.f. <br /> 401,320 s.f. <br /> 31.2 % impervious surfaces <br /> Commercial (GC-4) <br /> Total Tract Area: 10.43 Ac. (454,330 s.f) <br /> Pavement- 525 1.f. @ 2 x 24' (Scotswood Blvd.) 25,200 s.f. <br /> 1,550 1.f, @ 20' (circulation roads) 31,000 s.f. <br /> 294 @ 9' x 20' (parking) 52,920 s.f. <br /> 300 l.f. @ 4' (sidewalks) 1,200 s.f. <br /> 600 1.f. @ 10' (sidewalks) 6,000 s.f. <br /> 116,320 s.f. <br /> Buildings- <br /> 65,460 s.f. <br /> 181,780 s.f <br /> 40.0 % impervious surfaces <br /> Total tract: 329.96, Ac. (14,373,058 s.f.) <br /> Total Impervious Surfaces: 1,300,300 s.f. 9.1 % impervious surfaces <br /> (overall site) <br />