Abstract: This study sought to determine the factors affecting roads Construction Projects Completion in Nairobi City County. The study specific objectives was to evaluate how project manager’s competency, project funds, project equipment and Information Technology influence efficient road construction projects Completion in Nairobi City County. The target population comprised of all members of staff in all IT, Finance, HR and construction departments. The study applied a descriptive research design. The study population comprised of 2000 members of staff working in KURA in Nairobi. The study applied a stratified random sampling technique to select a sample size of 138 respondents. Questionnaires were used as the main data collection instruments and a pilot study was undertaken to pre-test the questionnaires for validity and reliability. The gathered data was analysed using descriptive statistics aided by Statistical Package for Social Scientists (SPSS) version 22 and findings presented on tables and charts. There was 70% response rate. The study findings reveal that road construction project Completion is greatly influenced by Project Equipment, Project Managers Competency, Project Funds, Project Technology.