The August 2011 flood in Ibadan, Nigeria: Anthropogenic causes and consequences

Agbola, Babatunde; Ajayi, Owolabi; Taiwo, Olalekan John; Wahab, Bolanle

doi:10.1007/s13753-012-0021-3

Cited by 87 publications

(44 citation statements)

References 13 publications

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“…In the last decades for instance, many states and cities have witnessed unusual and devastating flood disasters, which undermined the government's capability to prevent such disasters. Devastating flood events in Nigeria can be dated back to 1963 in Ibadan city, when Ogunpa River was over-flown causing loss of lives and property; these hazardous events reoccurred in 1978, 1980 and 2011, with estimated damages and deaths of over 30 billion naira and 100 people respectively, thus making Ogunpa River nationally and internationally famous (Adegbola and Jolayemi, 2012;Agbola et al, 2012). Between 2011 and 2012 alone, Lagos state recorded at least 8 major floods with more than 30 people deaths and many damages to properties (Editor, 2012;Komolafe et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A Review of Flood Risk Analysis in Nigeria

Komolafe¹,

Adegboyega²,

Akinluyi³

2015

American Journal of Environmental Sciences

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Nigeria has witnessed diverse flood events in the past years and due to the high level of vulnerability and lack of coping capacity of the people, with the fast occurrence of extreme events resulting from climate change, many lives and properties are at risk of its impacts. This paper reviews the recent past and present efforts in assessing the flood impacts in Nigeria. We concentrate this study on the recent works (methods and results) in assessing flood impacts in the country under basic components of flood risk analysis: The hazards mapping and modeling, exposure and vulnerability assessment, with the aim of suggesting possible urgent needs and further development. Based on our review, we conclude that, there is need to explore more effectively the use of state of the art flood models, which integrates all hydrological processes for more accurate prediction and mapping of flood and its associated risks. Also, as one of the steps to plan for adaptation and mitigation of future flood risk and climate change, there is a serious need of detailed research in the development of regional or national flood damage functions for pre-disaster flood damage estimation. The study also suggests further study on the environmental and health impact of flood in the country.

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Section: Introductionmentioning

confidence: 99%

A Review of Flood Risk Analysis in Nigeria

Komolafe¹,

Adegboyega²,

Akinluyi³

2015

American Journal of Environmental Sciences

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“…Many studies have investigated the impact of urbanization on flood events (e.g., [5][6][7][8][9][10][11][12][13][14][15]). According to the findings in the study by Agbola et al [6], besides prolonged rainfalls and river overflows, there are anthropogenic factors of flooding. Uncontrolled building construction is a relevant factor because such constructions obstruct the free flow of water (and, as a consequence, they are at high risk of being flooded).…”

Section: Relevance Of the Problemmentioning

confidence: 99%

“…Uncontrolled building construction is a relevant factor because such constructions obstruct the free flow of water (and, as a consequence, they are at high risk of being flooded). Reporting about the August 2011 flood in Ibadan (Nigeria), Agbola et al [6] say that in the city there were 600 buildings close to the riverbanks.…”

Section: Relevance Of the Problemmentioning

confidence: 99%

Ranking of Illegal Buildings Close to Rivers: A Proposal, Its Implementation and Preliminary Validation

Felice

2019

IJGI

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Illegal buildings (IBs) are a dramatic problem in developing countries due to the population explosion, but, at the same time, they represent an unsolved issue in several states usually called advanced (as, for instance, Italy). To protect the environment, and hence, people, land authorities must respond to the challenge of IBs by demolishing them. However, in countries where the phenomenon is extended, it is indispensable to provide those figures with an IT tool that returns to them an order of demolition. Through remote sensing methods, suspicious buildings can be identified with a good approximation, but they are all ex aequo. The research summarized in this paper formalizes a two-steps method to deal with a specific category of IBs, namely, those that are close to rivers. These buildings are of special interest to land authorities because people living or simply working inside them are exposed to the flood hazard that each year claims many victims all over the world. The first step of the method computes the census of the IBs located close to rivers, while the second step computes the ranking of these buildings. The ranking may be used as the IBs demolition order. In the paper, it is also proposed the structure of a Spatial DataBase (briefly, SDB) that is suitable to store the input data necessary to solve the problem, as well as the final ranking. Spatial SQL queries against the SDB implement the proposed two-steps method. A real case study was carried out to make a preliminary validation of the method.

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“…However, the extent to which the efforts made to implement the SWM has not appraised through scientific investigations. Secondly, increased flood impact has been reported by many scholars (Sakijege et al, 2012;Agbola et al, 2012;Salami et al, 2017). Moreover, studies on SWM especially in Dar es Salaam (the former capital City of Tanzania), focused on the challenges faced in Solid Waste Management initiatives (Bubegwa, 2012;Kasala, 2014), households perspectives on solid waste collection by the private sector (Kassim & Ali, 2006) and potential and constraints of composting domestic solid waste in developing countries (Mbuligwe et al, 2002).…”

Section: Rationale and Objective Of The Studymentioning

confidence: 99%

Repercussions of Improved Municipal Solid Waste Management on Flood Risk Reduction: The Case of Dar es Salaam, Tanzania

Sakijege¹

2019

GEP

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Indisputably, flooding is one of the predicaments that have plagued many countries throughout the world. Consequently, Improvement of Municipal Solid Waste Management-(MSWM) has recently become one of the ways that is believed to help in reducing the impact of flooding. Following the fact that Dar es Salaam, the commercial capital, has nearly 5 million inhabitants and several of the wards are in flood-prone areas, the City authorities introduced new models of MSWM by incorporating public-private partnership as a deliberate action envisioned to improve MSWM. Nevertheless, the extent to which the strategy is effective in minimizing flood risks had not been adequately researched, which prompted a need to conduct a study. Specifically, the study sought to: assess the current practice of SWM in the settlement; examine the extent to which flood risk had been reduced given the application of the new models of SWM. This is primarily a case study which used Keko Machungwa in Dar es Salaam as the study area. Different forms of data collections tools were used for instance interviews of households and officials, photographs, spatial data etc. The findings indicated that Jukwaa la Wanawake in Keko Machungwa, a newly emerged community-driven organization was doing a fairly good job in handling SWM. This social entity was capable of collecting 40 tons of solid wastes per week and arranged for transportation. Overall, there was a marked decrease in haphazard dumping within the settlement. Despite the improvement, however, flooding was still persistent and was an alarming challenge. To that effect, this study recommends that improving solid waste collection could help overcome the problem of flooding particularly if integrated with other initiatives which include 1) Investment in robust flood control structures; 2) Adherence to Urban planning and disaster management policies which prohibit development in hazardous areas, an in-How to cite this paper: Sakijege, T. (2019). Repercussions of Improved Municipal Solid Waste Management on Flood Risk Reduction: The Case of Dar es Salaam, Tanzania.

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The August 2011 flood in Ibadan, Nigeria: Anthropogenic causes and consequences

Cited by 87 publications

References 13 publications

A Review of Flood Risk Analysis in Nigeria

A Review of Flood Risk Analysis in Nigeria

Ranking of Illegal Buildings Close to Rivers: A Proposal, Its Implementation and Preliminary Validation

Repercussions of Improved Municipal Solid Waste Management on Flood Risk Reduction: The Case of Dar es Salaam, Tanzania

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