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Exposed bricks <br /> capped connectia <br /> inWabon Point <br /> f Gushing Water Stream <br /> w' <br /> Weeping <br /> Infiltration <br /> s Infiltration <br /> Stains <br /> Union Street-48"egg Union Street-S4"egg <br /> shaped pipe shaped pipe <br /> Figure 5. Gushing Infiltration Figure 6. Cap with Infiltration <br /> The Union Street sewer rehabilitation design employs trenchless construction methods that include <br /> lining manholes and installing a cured-in-place lining the length of the sewer. The lining alternative <br /> recommended in the design is Cured In Place Pipe(CIPP). <br /> CIPP lining can be used on nearly any size of pipe. The process involves inflating a felt tube soaked <br /> with resin into the sewer pipe. Once the felt tube has been inflated throughout the length of pipe, <br /> heated water or steam fills the tube and is kept at a high temperature until the resin cures and hardens <br /> to form a new pipe inside of the deteriorated pipe. <br /> Figure 7. Heat curing of felt tube liner. Figure 8. Inserting the liner into the pipe. <br /> The CIPP process has been used with good results by the City in many locations. Figures 7 and 8 <br /> above show cured-in-place lining installation work completed on past City projects. <br /> Page 17 <br />