The research focuses on the construction site management practices and the challenges that impede such practices in Ondo and Lagos states of Nigeria respectively with the view of minimizing waste and improve sustainability concept on public project delivery. The research survey targeted Architects, Quantity Surveyors, Builders and Civil Engineers affiliated with indigenous contracting firms through the administration of well-structured questionnaires. A simple random sampling technique was adopted in choosing the research respondents. The collected data were analyzed using both descriptive and inferential statistics. Out of 301 questionnaires distributed, only 135 questionnaires were returned and analyzed with 44.85% response rate. In-depth interview were also conducted on some selected site workers (labors) to elicit their views on the level of awareness and adoption of site management practices in their various sites. The results shows that minutes writing, resource leveling, cash flow management, proper payroll and daily work report are the five (5) topmost site management practices adopted on construction sites in the study area. The study also shows that respondents are highly aware about the site management practices. The result further shows that Lack of standardization in equipment management, plant hiring/purchasing problems, lack of on-site assistance, wrong curing procedures, ineffective communication practices, are the five major challenges that impede site management practices in the study area. Analysis of the transcribed interview shows that the site workers (labour) aware about the site management practices but are rarely followed judiciously. The research seeks the opinion view of construction professionals in the study area which may not be generalize to all other construction sites in south-western geopolitical zone of Nigeria; construction site workers needs to be kept abreast of the site management practices by organizing regular training for all cadre of site workers. The implication for practice is that investing in training will improve productivity, loyalty, minimizing of waste to the environment and increase contractors profitability. The study seeks to support the concept of buttressing the awareness on practicing adequate site management strategies on construction sites rather than relying on theoretical concept on the subject matter. It supports the proposition that adequate awareness of these practices will improve construction project performance.
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