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Average <br />Runoff Curve Number <br />Land U,-&- or Surface Characteristic <br />Imperv. <br />Soil co!!Tlex <br />Commercial Areas <br />85 <br />89 <br />92 94 95 <br />Neighborhood Areas <br />70 <br />90 <br />87 91 93 <br />Single Family (note 1) <br />(note 1) <br />Multi-unit (detached) <br />60 <br />74 <br />81 88 91 <br />Multi-unit (attached) <br />75 <br />83 <br />89 E 92 94 <br />Apartments <br />90 <br />86 <br />91 93 94 <br />Industrial <br />Light <br />80 <br />86 <br />91 <br />93 <br />94 <br />Heavy <br />90 <br />92 <br />94 <br />96 <br />96 <br />Parks, cemeteries <br />5 <br />42-- <br />63 <br />=75 <br />81_ <br />Playgrounds <br />to <br />45 <br />65 <br />76) <br />82 <br />Schools <br />50 <br />69 <br />80 <br />86 <br />89 <br />Railroad yards; <br />48 <br />67 <br />78 <br />831 <br />Irrigated Areas <br />Lawns. parks, golf course <br />0 <br />39 <br />61 E 74 80 <br />Agriculture <br />0 <br />39 <br />61 1 -74 80 <br />Undeveloped Areas <br />Pr"ev40oprnent conditions --as <br />2 <br />40 <br />62 74 1 80 <br />Greenbelts, agriculture -- 't' <br />2 <br />40 <br />62 74 80 <br />Off -site analysis when land use <br />45 <br />66 <br />78 85 SIS, <br />Unknown <br />outcry s <br />70 <br />80 <br />97 94 <br />Streets;' pads <br />Paved <br />100 <br />98 <br />98 <br />98 <br />98 <br />Gravel <br />40 <br />63 <br />76 <br />84 <br />87 <br />Drives/Walks <br />90 <br />92 M <br />92 <br />94 <br />96 W <br />96 <br />Roofs <br />90 <br />m <br />9.1 96 <br />96 <br />