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A <br /> TABLE 6 <br /> Stormwater Drainage System Development Charge Analysis <br /> 1. Analysis,of Stormwater Drainage System Value <br /> Total Replacement Cost -Pipe $72,259,689 <br /> Total Replacement Cost -Open Channel Systems $27,687,041 <br /> Total Replacement Cost -Other Stormwater Components $32,246,161 <br /> Total Replacement Cost of Stormwater System ;;-x132,192,891 <br /> 2. Analysis of Assessable Cost <br /> Assessable portion of piped system $47,227,719 <br /> Assessable portion of open channels $0 <br /> Assessable portion of other system components $25,017,363 <br /> ..Total Assessable Cost ~ - - _;$72,245,082 <br /> 3. Stormwater System Calculation Details <br /> .Single-Family Dwelling (SFD) average lot size in cit limits 9,2Q0 sq. ff. <br /> Residential Runoff Coefficient 35 percent <br /> Average Manufactured Home Park space size (double wide) 1,684 sq. ft. <br /> Total Developed Acres inside City Limits 12,653 Acres <br /> Total Number of Acres of Impervious Surface 7,868 Acres <br /> 4. Calculation of SDC <br /> Non=Assessable Cost ~ ° t ~ - - ; $59,947,810 <br /> Cost per Acre [ $59,947,810 / 7,868 ] $7,619.19 <br /> Cost per Square Foot [ $7,619.19 / 43,560 ] $0.175 <br /> <br /> • Cost per SFD flat rate [9,200 x 0.35 x $0.175 = $563.00 rounded j $563.22 <br /> Cost per Duplex flat rate [rate for SFD x 2 = $1,126.00 rounded ] $1,126.44 <br /> Cost per SFD = or > 3,000 building footprint [ $663.22 x 1.5 j $844.83 <br /> Cost per Manufactured Home Park Space [ 1,ss4 x $0.175 j $294.70 <br /> March 01, 1997 Methodologies: City of Eugene SDCs Page E-3 <br /> <br />