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2020 Eugene Wastewater Master Plan Chapter 3: Existing Wastewater Systems 13 <br />Table 3-3: Existing Wastewater System Estimated Replacement Value – Gravity System <br />Pipe <br />Diameter <br />(inches) <br />Average <br />Trench Depth <br />(feet) <br />Systems <br />Length <br />(feet * 1000) <br />Estimated <br />Construction Cost <br />(per foot) 1 <br />Total Unit <br />Cost 2 <br />Reconstruction <br />Total Cost (in <br />millions) <br />4 5 5.89 $111.18 $138.97 $0.82 <br />6 7 270.57 $153.89 $192.36 $52.05 <br />8 8 2,714.01 $156.15 $195.18 $529.73 <br />10 10 173.16 $158.20 $197.75 $34.24 <br />12 11 127.33 $202.01 $252.52 $32.15 <br />14 8 2.51 $170.45 $213.06 $0.53 <br />15 12 77.45 $211.94 $264.92 $20.52 <br />16 10 1.61 $212.10 $265.12 $0.43 <br />18 13 91.49 $261.81 $327.26 $29.94 <br />21 14 50.34 $280.86 $351.08 $17.67 <br />22 8 1.23 $260.49 $325.61 $0.40 <br />24 12 29.19 $292.54 $365.68 $10.67 <br />27 14 16.77 $339.40 $424.25 $7.12 <br />30 15 43.78 $387.83 $484.78 $21.22 <br />36 16 45.92 $502.32 $627.90 $28.83 <br />42 17 8.66 $547.79 $684.74 $5.93 <br />48 20 27.87 $631.83 $789.78 $22.01 <br />54 20 11.85 $753.24 $941.54 $11.16 <br />60 18 7.42 $875.99 $1,094.99 $8.13 <br />66 17 7.28 $935.83 $1,169.79 $8.51 <br />72 14 11.35 $888.64 $1,110.80 $12.61 <br />Total 3,725.67 $854.68 3 <br />1 Estimated construction costs are from Table 6-1 of this report for construction in developed areas, <br />and include 6 inches of asphalt concrete pavement (ACP) surfacing <br />2 Total unit costs include 25% for engineering and administration <br />3 Estimated replacement cost for total gravity wastewater system, based on 2019 dollars (ENR 11281) <br />EXISTING WASTEWATER PUMP AND LIFT STATIONS <br />The Eugene service area currently includes 27 wastewater pump and lift stations, owned and operated <br />by the City, in addition to two regional pump stations (Irvington and Willakenzie), owned and operated <br />by MWMC. The number in each of the basins is shown below in Table 3-4. <br />