EFFECT OF CONTRACT PROCUREMENT METHODS ON THE PERFORMANCE OF PUBLIC CONSTRUCTION PROJECTS IN KENYA: A CASE OF KIAMBU COUNTY
Abstract
Purpose of the Study: This study assessed the effect of contract procurement methods on the performance of public construction projects in Kiambu County, Kenya.
Problem Statement: Kenya's public construction sector experiences systemic inefficiencies in project procurement methods, resulting in significant project delays and cost overruns. Previous studies indicate that 25% of government spending on public contracts is wasted due to procurement inefficiencies, with 70% of projects experiencing delays and 83% failing to achieve performance targets.
Methodology: The study employed a quantitative research approach using survey design. Data was collected through questionnaires administered to 158 projects, targeting Procurement Officers, Architects, Quantity Surveyors, and Civil Engineers. Data analysis was conducted using SPSS with descriptive statistics and correlation analysis.
Results: Traditional Design-Bid-Build (DBB) was the dominant procurement method (88.6% usage). Value for money emerged as the best-performing indicator (75.8%), while project timeliness was the poorest (53.4%). Correlation analysis revealed ten statistically significant relationships between procurement methods and project performance, with six positive and four negative correlations. DBB showed negative correlations with timeliness (ρ=-0.423) and quality (ρ=-0.280), while Design & Build positively correlated with timeliness (ρ=0.296).
Conclusions and Recommendations: While Traditional DBB remains predominant, it negatively impacts project timeliness and quality. Public projects in Kiambu County achieve good value for money but struggle with timely delivery. The study recommends adopting hybrid procurement models, implementing e-procurement systems, and strengthening contractor prequalification processes to improve overall project performance.
Keywords: Contract Procurement, Methods, Performance Public Construction, Projects, Kiambu County
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