Project risks have significant impact on construction projectâ€™s performance in terms of cost, timernand quality. Thus, managing the risks has been recognized as a very important managementrnprocess in order to achieve the project objectives. The objective of this research is to examinernwhether design risks are contributory to cost and time overruns, and poor quality of works, andrnmake recommendation based on the findings. The research, thus, reviewed 10 Road constructionrnprojects performed during the last 14 years, and conducted interviews with professionals of thernEthiopian Roads Authority (ERA) who are involved in procurement, design review, andrnmonitoring implementation of Road construction projects at Federal level.rnThe findings of this research revealed that design risks were contributory to cost and timernoverrun and poor quality of works. The underlying cause of the risks is that designers lackrnconstruction experience and fail to fully address constructability problems that surface duringrnconstruction. And it was found that the breeding ground for design risks is the Design-Bid-Buildrnproject delivery method currently in place. This project delivery system is characterized byrnseparation of phases which does not make use of construction experience in the development ofrndesign.rnDesign-build Project delivery method allows collaborative efforts of Designers and Contractorsrnin early phases and, therefore, lays the ground to minimize or manage the design risks byrnoptimizing the design and construction personnel. Constructability problems which have anrnimpact on time, cost, and quality are, therefore, better addressed with Design-Build projectrndelivery method.rnKeywords: Risk management, Design Risk, Constructability, Quality management, Projectrndelivery method