摘要:Large construction projects in Yemen face many impediments and challenges to be completed successfully. This article presents an investigative cases study of three mega construction projects which are considered failed to achieve their assigned plans and objectives. An exploratory interview was implied in this study via telephone to three construction experts who involved directly in these mega projects at the managerial level. Semi-structured questions based on literature were designed as guide for the interview where the scope was mainly on causes of the mega projects failure. Outcomes from this study found that Yemen construction industry lacks of proper accrediting system to accredit construction stakeholders (contactors, consultant); improper planning for cost and time, lack of effective communication and coordination platforms and lack of advanced technology which are considered amongst the crucial challenges faced by industry. Hence, Yemeni construction industry is in dire needs of an effective platforms and system to administer project communication, information and coordination. Findings of this study can be useful for Yemeni construction community to understand causes of the failure and suggestions provided by experts are also very helpful in creating better quality works.