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2020 Eugene Wastewater Master Plan Chapter 5: Rehab of Existing Systems 42 Table 5-3: Construction Costs for Wastewater Rehabilitation Using Cured-In-Place Pipe (CIPP) for Existing Un-Rehabilitated Pipe Greater Than 50 Years Old (as of 2019) Pipe Diameter Un-Rehabilitated Pipe (ft) CIPP Cost/Foot Total Construction Cost1 5” -6” 30,526 $129 $3.95 8” 649,149 $132 $85.38 10” 64,125 $134 $8.58 12” 53,307 $136 $7.25 14”-15” 32,813 $141 $4.61 18” 60,443 $154 $9.31 21” 29,737 $165 $4.91 24” 17,176 $219 $3.77 27” 12,863 $251 $3.22 30” 32,820 $280 $9.19 36” 38,878 $325 $12.63 42” 3,543 $390 $1.38 48” 5,674 $447 $2.54 54” 11,851 $526 $6.23 60” 7,424 $730 $5.42 66” 7,276 $803 $5.84 72” 11,301 $958 $10.82 Total 1,068,904 $185.03 Note: cost estimates used 2019 Construction Costs, ENR =11281 1 in millions of dollars ADDITIONAL INFORMATION The fiscal year 2020 capital budget included $1,755,000 for wastewater reconstruction and rehabilitation. In 2019, this represented less than 0.1 percent of the estimated replacement value of the wastewater collection system and only allowed for rehabilitation of approximately 11,000 feet of pipe. To help put that amount of rehab in perspective, an additional 70,000 feet of wastewater pipe reached the age of 50 in 2019 alone. PVC was not the predominant pipe type until approximately the mid-1970s, and wasn’t used exclusively for smaller diameter pipe until the 1980s. Most literature concludes that PVC can be expected to have a service life of 100 years, or more. In addition to the pipe material, the joint materials used in PVC pipe continue to improve, reducing I/I. An added benefit of a fully funded wastewater rehabilitation program is improved resiliency of the system in the event of an earthquake. Continuous, lined gravity wastewater pipes are far less likely to separate during a seismic event.