Delay Factors for Wastewater Pipeline Construction Projects in Saudi Arabia

Mohammed Almalki, Baris Salman

Research output: Chapter in Book/Entry/PoemConference contribution


Wastewater pipeline construction projects, like any other public utility projects, are susceptible to delays, and the Kingdom of Saudi Arabia (KSA) is no exception. In many cases, such delays cause environmental issues and affect commuters, local businesses, project cost, and the public and workers' health and safety. There is a growing need to identify and study the relative significance of the major causes of delays in wastewater pipeline construction projects in the KSA. A questionnaire survey was conducted to assess the importance of 30 potential delay causes based on the perceptions of a select sample of clients, consultants, and contractors. These 30 potential delay factors corresponded to eight main delay categories. The survey data was analyzed using the relative importance index and was then further examined for agreement between the three groups. The top five delay causes identified were labor supply, equipment availability and failure, unforeseen ground conditions, labor productivity, and improper planning. The analysis showed disagreements between clients and contractors as well as between consultants and contractors with regard to the rankings of both individual delay causes and factor categories. The results of this survey will be used in future work to develop decision support systems for wastewater pipeline construction projects. It is anticipated that altogether these studies will contribute to improving the sustainability of wastewater pipeline construction projects in the future.

Original languageEnglish (US)
Title of host publicationPipelines 2022
Subtitle of host publicationCondition Assessment - Proceedings of Sessions of the Pipelines 2022 Conference
EditorsShaoqing Ge, Jeffrey A. Shoaf
PublisherAmerican Society of Civil Engineers (ASCE)
Number of pages10
ISBN (Electronic)9780784484296
StatePublished - 2022
EventPipelines 2022 Conference - Indianapolis, United States
Duration: Jul 31 2022Aug 3 2022

Publication series

NamePipelines 2022: Planning and Design - Proceedings of Sessions of the Pipelines 2022 Conference


ConferencePipelines 2022 Conference
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality


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