ABSTRACT

This study examined the impact of flooding on housing development in Gani fawehinmi area, Ondo town, Nigeria.  Flood is any overland flow of water, over street, sufficient to cause significant damage to lives and property, nuisance and health hazards. Data for this study were collected from primary sources, through the administration of one hundred and twenty one (121) questionnaires on respondents in the study area. Results from this study revealed that high intensity of rainfall, dumping of refuse on drainage channels, poor construction of drainage channels and poor town planning practices are the main causes of flood problems in the study area. This study therefore recommends adequate drainage system, proper land use planning, construction of embankments, proper refuse disposal and environmental enlightenment programmes as a panacea to flood problems.

TABLE OF CONTENT

DECLARATION i

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DEDICATION iii

ACKNOWLEDGEMENT iv

TABLE OF CONTENT v

LIST OF TABLES ix

LIST OF FIGURES xi

LIST OF PLATES xii

LIST OF APPENDIX xiii

ABSTRACT xiv

CHAPTER ONE 1

1.0 INTRODUCTION 1

1.1 Background to the Study 1

1.2 Research Problems 2

1.3 Research Questions 4

1.4 Aim and Objectives 3

1.4.1 Aim 3

1.4.2 Objectives 3

1.5 Scope of the Study 4

1.6 Justification of Study 4

1.7 Definition of Terms 6

1.8 Research Limitation 8

1.9 Study Area 8

1.9.1 Historical Background 8

1.9.2 Geographical Location 9

1.9.3 Population 11

1.9.4 Climate, Relief & Vegetation 12

1.9.5 Socio-Economic Importance of the Area 12

CHAPTER TWO 13

2.0 LITERATURE REVIEW AND CONCEPTUAL FRAMEWORK 13

2.1 Literature Review 13

2.1.1 Types of Flood 14

2.1.2 Causes of Flooding 16

2.1.3 Impact of Flooding 18

2.1.4 Effects of Flooding 19

2.2 CONCEPTUAL FRAMEWORK 21

2.2.1 Integrated Flood Management 21

2.2.2 Total Water Cycle Management 22

2.2.3 Role of physical Planning in Flood control and management 23

2.2.4 Flood Monitoring Tools 24

CHAPTER THREE 26

3.0 RESEARCH METHODOLOGY 26

3.1 Research Design 26

3.2 Methods of Data Collection 27

3.2.1 Primary Source 27

3.2.2 Secondary Source 27

3.3 Research Population 28

3.4 Sampling Frame 28

3.5 Sample Size 29

3.6 Sampling Technique 30

3.7 Research Procedure 30

3.8 Data Collection Instruments 31

3.9 Method of Data Analysis 31

CHAPTER FOUR 33

4.0 DATA ANALYSIS AND INTERPRETATION 33

4.1 Socio-economic characteristics of respondent 33

4.1.1 Sex of the respondents 33

4.1.2 Age of respondents 34

4.1.3 Marital status of the respondents 34

4.1.4 Religion of the respondents 35

4.1.5 Ethnic group of the respondents 35

4.1.6 The level of literacy of the respondents 35

4.1.7 Occupation of the respondents 36

4.1.8 Income of respondents 36

4.1.9 Length of stay of respondent in this area 37

4.2 Presentation and Analysis of Data According to Research Question, Objectives and hypothesis 38

4.2.1 Nature of the built environment. 38

4.2.1.1 Age of building 38

4.2.1.2 Materials for external wall 38

4.2.1.3 Housing type within the area 39

4.2.1.4 Ownership of the house 39

4.2.1.5 Land topography detail 40

4.2.1.6 Building use 40

4.2.1.7 Road condition 41

4.2.1.8 Drainage facilities in the area 42

4.2.1.9 Waste disposal method 42

4.2.2 Rate of flooding 43

4.2.2.1 Occurrence of flooding on housing development 43

4.2.2.2 Occurrence of flooding 44

4.2.2.3 Period of occurrence 45

4.2.2.4 Flood occurrence annually 45

4.2.3 Causes of flooding in Gani fawehinmi 46

4.2.3.1 Causes of flooding 46

4.2.3.2 Building approval by authority 47

4.2.3.3 Observed building set-back 47

4.2.4 Effects of flooding 48

4.2.4.1 Affected areas 48

4.2.4.2 Effect of flood on housing development 49

4.2.4.3 Effectiveness of government on flood control and housing development 50

4.2.4.4 Positive impact of flood 51

4.2.4.5 Negative impact of flood 51

4.2.5 Preventive measures put in place by government and inhabitants 51

4.2.5.1 Mitigation measures that are required 51

4.2.5.2 Response of inhabitants about Government intervention 52

4.2.5.3 Community effort 53

CHAPTER FIVE 54

5.0 SUMMARY OF FINDINGS, CONCLUSION, RECOMMENDATION AND PLANNING IMPLICATION OF FINDINGS. 54

5.1 Summary of Findings 54

5.2 Conclusion 55

5.3 Recommendation 56

5.4 Planning Implication of the Findings 58

5.5 Contribution to Knowledge 59

5.6 Areas for further research 59

References 60

Appendix 63