Page 319 - Trenchless Technology Piping Installation and Inspection
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Defect Score
             Action Required (points/ft)  Ranking Emergency repair  score not  • Initiate urgent procedure  applicable A.    All televised pipelines are ranked on a priority point per ft basis according to the severity of their defects. The ranking list is further subdivided into  The identification and ranking procedures are













             Condition Description  Emergency condition  • Collapsed pipe/street  • Dirt pipe (CPD) • Crown of pipe gone (CPC, CG) • Void in backfill around pipe • Full flow obstruction/blockage  categories to identify and quantify the urgency of the corrective work needed. placed into Category E for immediate review by the P.










             Category  E           Table Notes:  B.     C.     TABLE 7.4




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