ICFM6 - International Conference On Flood Management

Data: 17/09/2014 à 19/09/2014
Local: São Paulo - Brazil
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Building Contraventions and Incidence of Flood in the Lagos Metropolis (PAP014991)




Land use and Floods, landslides and erosion


The urge to satisfy the housing needs of the growing population results in indiscriminate development of urban space, including flood plains and canals, without recourse to urban planning and development guidelines. The consequential effect of this unwholesome practice is incessant flooding in the metropolis. This study carried out spatial analysis of flooded areas in Lagos Metropolis. A complete list of streets where flood incidence was recorded in sixteen metropolitan local government areas was obtained from Drainage Department, Lagos State Ministry of Environment. Visitations were made to each of the 211 flood prone streets to obtain information about the causes of flood. These data were integrated within GIS and delineation of streets prone to flood due to building contraventions and poor urban planning was carried out. The results suggest building contraventions along drainage channels and floodplains were the cause of flood in 48.8% of the streets. This paper contributes to the pragmatic and problem-solving integration of urban planning and development with social advocacy for flood management in the Lagos Coastal Megacity which is part of the objectives of the CCaR Project.

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