Innovative method for assessment of underground sewer pipe condition

Dae Hyun Koo, Samuel Ariaratnam

Research output: Contribution to journalArticlepeer-review

79 Scopus citations


The accurate evaluation of current underground infrastructure must be done before any crucial decisions regarding lifecycle analysis, rehabilitation and replacement intervals and appropriate remedial methods can be made. Unfortunately, traditional technologies and management approaches have been limited by the use of insufficient data in the evaluation of the structural integrity of an aged infrastructure. This paper describes an innovative method for assessment of underground pipe, utilizing Ground Penetrating Radar (GPR) and Digital Scanning and Evaluation Technology (DSET) to collect accurate information about the condition of a buried pipeline. Prediction modeling, using logistic regression, to measure the extent of deterioration of the infrastructure system, is described. A case study applying this innovative technology to sections of large diameter PVC lined concrete pipe in the City of Phoenix, Arizona, is presented.

Original languageEnglish (US)
Pages (from-to)479-488
Number of pages10
JournalAutomation in construction
Issue number4
StatePublished - Jul 2006


  • Evaluation
  • Lifecycle prediction modeling
  • Underground infrastructure
  • Utility inspection

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Civil and Structural Engineering
  • Building and Construction


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