Flood Resilience Measures in Buildings on the Flood-plains of Ogbaru, Anambra State, Nigeria

Main Article Content

F. O. Ezeokoli
K. C. Okolie
S. U. Onwuka

Abstract

Aim: The study evaluates the flood resilience measures in buildings on flood-plains of Ogbaru, with a view to establishing the extent of its incorporation into the design and construction of Buildings.

Study Design: It was a survey research, questionnaires were distributed to heads of the selected households and building practitioners in the study area. Likewise, physical observations were carried out to substantiate the findings of the questionnaire survey.

Place and Duration of the Study: The study was conducted in Ogbaru Local Government Area, Anambra State, Nigeria for a period of 2 years.

Methodology: Being a survey research, data were collected through structured questionnaire administered to the selected building construction practitioners and occupants in Ogbaru. In addition, interviews and direct observation survey were conducted to substantiate the validity of the questionnaire survey. Accordingly, a total of four hundred and (400) questionnaires were distributed and a total of two hundred and ninety-three (293) questionnaires were completed and returned. This corresponds to a response rate of 73.3%.  Data collected were analyzed using mean score, standard deviation, pearson product moment correlation (PPMC) techniques and z-test.

Results: The study found out that the flood resilience measures are not largely incorporated into the design and construction of buildings. The flood resilience measures currently in use are few and includes raised building floor level or platform, use of concrete floor and tiling, use of embankments, re-routing flood water channels, building walls and floors with none/low permeability materials, raised kitchen appliances and low walls or barriers between streetscape, Also, advanced or sophisticated flood resilience measures such as Automatic window opening panels (flood inlets), water sensors within and outside buildings and hybrid design are rarely used in the study area.

Conclusion: The study concluded by recommending that flood resilience measure should be incorporated into the development/ construction of building within the study area. Also, newer and sustainable flood resilience measures/technologies should be made available and affordable in the study area.

Keywords:
Flood, flood-plain, buildings, flood resilience, Ogbaru

Article Details

How to Cite
Ezeokoli, F., Okolie, K., & Onwuka, S. (2019). Flood Resilience Measures in Buildings on the Flood-plains of Ogbaru, Anambra State, Nigeria. Advances in Research, 19(4), 1-10. https://doi.org/10.9734/air/2019/v19i430131
Section
Original Research Article

References

Batica SF. Development and application of flood vulnerability indices for various spatial scales (Published master of science thesis), Institute for Water Education, Delft, Netherlands; 2007.

Efobi K and Anierobi C. Hazard reduction strategies for flood vulnerable communities of Anambra State, Nigeria: Towards Sustainability, International Affairs and Global Strategy. 2013;16:46–49.

Ofori G. Construction industry development for disaster prevention and response, Singapore, Singapore University Press; 2006.

Malalgoda C, Amaratunga D, Pathirage C. Exploring disaster risk reduction in the built environment, UK, University of Salford Press; 2010.

Ratnayake RMGD, Raufdeen R. Post disaster housing reconstruction: Comparative study of donor driven vs. Owner Driven Approach, Sri Lanka, University of Moratuwa Press; 2008.

Barenstein JD, Isaac DP. Post- disaster housing reconstruction current trends and sustainable alternatives for tsunami-affected communities in coastal Tamil Nadu, (Published Doctoral Thesis), University of Applied Sciences of Southern Switzerland, Switzerland; 2007.

Mc Allister T. Developing guidelines and standards for disaster resilience of the built environment: A research needs assessment; commissioned by national institute of standard and technology US Department of Commerce; 2013.
Available:http://dx.doi.org/10.6028/NIST.TN.1795

Bowker P, Escarameia M, Tagg A. Improving the flood performance of new buildings-flood resilient construction, commissioned by Department for Communities and Local Government: London, UK; 2007.
Available:www.communities.gov.uk

Rasmus D. Resilience and complexity: Onjoining the discourses of two contested concepts. Culture Unbound, 2015;7:541-557.
Available:http://www.cultureunbound.ep.liu.se

Royal Institute of British Architect (RIBA). Climate change Toolkit: Designing for flood risk; 2009.
Available:http://www.architecture.com/climatechange

Queensland Flood Mapping Program (QFMP), Flood ready Queensland - Flood mapping implementation kit, commissioned by Department of Natural Resources and Mines, State of Queensland, Australia; 2014.
Available:http://creativecommons.org/licenses/by/3.0/au/deed.en

Ezeokoli FO. Investigation into the post-flooding reconstruction management in Anambra State (A case study of Ogbaru LGA); (Unpublished MSc thesis), Nnamdi Azikiwe University, Awka; 2014.

Ezeokoli FO, Okoye PU, Ugochukwu SC. The upshot of the 2012 flooding on structural components and fabrics of buildings at Ogbaru, Anambra State Nigeria. American Journal of Civil Engineering and Architecture. 2015;3(4): 129-136.

Melbourne Water Corporation (MWC), (2008), Guideline for Development in Flood Prone Area; 2008.
Available:www.melbournewater.com.au

Leveson NG, Dulac N, Zipkin D, Gershenfeld JC, Carroll J, Barrett B. Engineering resilience into safety-critical systems, future security. Communications in Computer and Information Science. 2012;318.

Folke C, Carpenter S, Elmqvist T, Gunderson L, Holling CS, Walker B, Bengtsson J., Berkes F, Colding J., Danell K, Falkenmark M, Gordon L, Kasperson R, Kautsky N, Kinzig A, Levin S, Karl-Göran M, Moberg F, Ohlsson L, Olsson P, Ostrom E, Reid W, Rockström J, Savenije H, Svedin U. Resilience and sustainable development: Building adaptive capacity in a world of transformations, scientific background paper on resilience for the process of The World Summit on Sustainable Development on behalf of The Environmental Advisory Council to the Swedish Government; 2002.

Brujin DKM. Resilience and flood risk management: A systems approach Applied to Lowland Rivers, Netherland, Delft University Press; 2005.

Morgan P. How can architecture instill resilience within communities in the face of future disasters? (Master of architecture professional thesis) Unitec Institute of Technology, University of Auckland, New Zealand; 2015.

Proverbs D, Lamond J. The barriers to resilient reinstatement of flood damaged homes. Proceeding of 4th International i-Rec Conference, Christchurch, New Zealand; 2008.

Ezeabasili ACC, Okonkwo AU. Climate change impacts on the built environment in Nigeria, African Research Review. 2013; 7(4);288–303.

Coulbourne W, Jones CP, Kapur O, Koumoudis V, Line P, Low DL, Glenn O, Passman S, Reeder A, Seitz L, Smith T, Tezak S. Coastal construction manual, principles and practices of planning, siting, designing, constructing, and maintaining residential buildings in Coastal Areas (4TH Edition), FEMA- US; 2011.

Hunter K. Future–proofing new and existing buildings flood resilient design and construction techniques, Commissioned by BRE Scotland; 2015.

Office of the Deputy Prime Minister (ODPM), Preparing for flood: Interim guidance for improving the flood resistance of domestic and small business properties; 2003.

City of Hoboken’s (COH), Resilient Building Design Guidelines, Commissioned by New Jersey Department of Community Affair, USA; 2015.

Wingfield J, Bell M, Bowker P. Improving the flood resilience of buildings through improved materials, methods and details, Commissioned by Imperial College of Science Technology & Medicine, HR Wallingford, UK; 2005.

National Population Commission (NPC), Population census figures for 2006, Official Gazette, Abuja; 2006.