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TABLE 6 <br />:Stormwater Drainage Systems f?eyelopment'Charge Analys',iis <br />1. Anal sis of Stormwater Draina e S stem Value <br />Total Re lacement Cost -Pie -$79,938,220 <br />Total Re lacement Cost - O en Channel S stems $22,461,376 <br />Total Re lacement Cost -Other Stormwater Components $26,160,005 <br />,:Total' Re lacement Cost of Stormwater S stem... $128,559;'602 <br />2. Anal sis of Assessable Cost <br />Assessable ortion of i ed s stem $52,246,278 <br />Assessable ortion of o en channels $0 <br />Assessable ortion of others stem com onents $20,295,574 <br />,,, <br />'TotalAssessable Cost <br />$72,541,!852 <br />3. Stormwater S stem Calculation Details <br />Sin le-Famil Dwellin SFD avera a lot size in cit limits 9,200 s . ft. <br />Residential Runoff Coefficient 35 ercent <br />Avera a Manufactured Home Parks ace size double wide 1,684 s . ft. <br />Total Develo ed Acres inside Cit Limits ~ 12,653 Acres <br />Total Number of Acres of Im envious Surface 7,868 Acres <br />4. Calculation of SDC <br />»IVon-Assessable Cost $5fi;017,750 <br />Cost er Acre ($56,017,750 l 7,868 ] $7,119.69 <br />Cost er S uare Foot [ $7,119.69 143,560 ] $0.164 <br />COSt er SFD flat rate [Assumes approx. 9,200 sq ft lot; 0.35 impervious surface] $527.85 <br />Cost er Du lex flat rate [rate for SFD x Z] $1,055.70 <br />-Cost er SFD = or > 3,000 buildin foot rint { $527.85 x 1.5 ] $791.78 <br />Cost er Mf .Home Park S ace [Assumes approx. 1,684 sq ft space] $276:06 <br />City of Eugene SDC IVlethodology Stormwater, Page D-3 <br />