: The purpose of this study was to investigate the role of the governments in completion of urban roads construction projects in Nairobi City County, Kenya.Specifically, the study sought to determine the role of the National and County governments as key stakeholders in performance of urban roads construction projects completion in Nairobi City County, Kenya. The study applied descriptive research design and used both qualitative and quantitative methods for data collection and analysis. The study targeted 530,883 people from three sub counties from which a sample size of 155 both road users and professionals participated. The study used proportionate stratified random sampling techniques to select the sample size (road users) and purposive to select the other participants. From the findings, the government had both direct and indirect role on the rate of urban roads construction. Majority of the technical team respondents 40(80%), indicated that corruption was the main challenge facing stakeholder participation in urban road construction completion. From the findings, 18(36%) of the respondents indicated that limited operational resources affect them to great extent. In addition, 24(48%) of the respondents indicated that poor funding and cash flow problems affected them to a very great extent. On Correlation analysis, Citizen Participation had very strong positive correlation with urban roads construction project performance with a correlation coefficient of 0.810. It was concluded that, all stakeholders have a very crucial role towards successful urban roads construction performance in Nairobi City County. It was recommended that, there is a need to have strong control mechanisms in the County and National governments in order to improve on the quality and the general performance of urban roads construction in Nairobi City County.