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I <br /> ? I'i.. <br /> I <br /> ' TABLE 6 <br /> <br /> ~ S ormwater Drainage System Development Charge Analysis <br /> ~ 1. Analysi of Stormwater Drainage System Value <br /> Total R placement Cost -Pipe $72,259,689 <br /> Total R placement Cost -Open Channel Systems $20,303,830 <br /> Total R placement Cost -Other Stormwater Components $23,647,185 <br /> Total R placement Cost of Starmwater System $116,210,704 <br /> 2. Analy is of Assessable Cost <br /> ~ Assess ble portion of piped system $47,227,719 <br /> Assess ble portion of open channels $0 <br /> Assess ble portion of other system components $18,346,066 <br /> Total ssessable Cost = $65,573,785 <br /> . 3. Storm ater System Calculation Details <br /> Single- amity Dwelling (SFD) average lot size in city limits 9,200 sq. ft. <br /> Reside tial Runoff Coefficient 35 percent <br /> Averag Manufactured Home Park space size (double wide) 1,684 sq. ft. <br /> Total D veloped Acres inside City Limits 12,653 Acres <br /> Total N tuber of Acres of Impervious Surface 7,868 Acres <br /> 4. Calcul tion of SDC <br /> 'Hon-A sessable Cost - _ - $50,636,919 <br /> Cost p r Acre [ $50,636,919 / 7,868 ] $6,435.81 <br /> Cost p r Square Foot [ $6,435.81 / 43,560 ] $0.148 <br /> Cost p r SFD flat rate [ s,2oo x 0.35 x $0.148 = $476.00 rounded ] $475.74 <br /> Cost p r Duplex flat rate [rate for SFD x 2 = $951.00 rounded J $951.48 <br /> Cost p r SFD = or > 3,000 building footprint [ $475.74 x 1.5 ] $713.61 <br /> Cost p r Manufactured Home Park Space [ ~ ,684 x $0.148 ] $249.23 <br /> i <br /> ' May 1, 199 City of Eugene SDC Methodology Page E-3 <br /> <br />