Causes of Delay in Construction of Motorable Bridges under “Design and Build Model” of Bridge Project, Department of Roads, Nepal

Abstract

This paper aims at detecting the causes of delay in the “design and build model” of motorable bridge construction under the Bridge Project, Department of Roads, Nepal. The research is based on an intensive literature review, primary data, secondary data, and interviews. The survey which was carried out with the help of questionnaires was used to assess the perceptions of the respondents involved in the construction of the “design and build model” of the bridge project. The questionnaire was divided into three parts and the main part focused on the causes of delay in “design and build model” in the implementation of such projects. A total of 56 different causes for delay of bridge construction were identified through the literature review and a pilot survey of three groups of respondents who were involved in the construction of such bridges (see literature review of this paper). The eight most important causes, among 56, identified by the study are: 1) Lack of stakeholder analysis 2) Poor portfolio management 3) Lack of inadequate pre-execution planning and improper time management 4) Lack of site management 5) Inadequate budget allocation and delay in payment 6) Lack of provision of reward and penalty, 7) Lack of detail survey, improper soil exploration and preparing report without depth study and 8) contractor’s excessive workload. The cost, quality, and schedule of bridge construction projects can be maintained once the problem of unnecessary delay is resolved and the competency of the construction industry in Nepal will improve.