EFFECTS OF POOR DRAINAGE SYSTEM TO BUILT ENVIRONMENT: A CASE STUDY OF AUCHI METROPOLIS

Abstract

This study focused on the adverse effect of poor drainage system in Built Environment in Nigeria using Auchi metropolis in Edo State as a case study. Three research questions guided the study. Using a descriptive survey, a well-structured questionnaire was administered to the stakeholders in built environment; and their perception of House Owners and Tenants in Auchi community was equally sought. Using proportionate sampling and random sampling techniques, a total of 150 questionnaires were administered and retrieved from the field.  The data obtained were subjected to statistical analysis using percentages, mean scores, and percentile. This study reveals inadequate layout plan and design or absence of well-constructed drainage system and dumping of refuse on drains are the major causes of floods in Auchi as this ranked 1^{st and} 2^ndwith a mean score of 3.54 and 3.37 respectively. The study recommends among others, that rain barrels and cisterns, Permeable Pavements; Permeable Concrete design roads and Interlocking Concrete Pavement should be used.