Page 320 - Trenchless Technology Piping Installation and Inspection
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Defect Score (points/ft) Ranking score not applicable
Action Required Emergency repair • Initiate urgent procedure 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 conservative. Certain defects may receive a
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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