The Factors responsible for urban flooding in Karachi (A case study of DHA)

  • Ayesha Iftikhar National University of Sciences and Technology, Rislpur Campus, Pakistan
  • Jawed Iqbal SO Nust at National institute of Transportation, Nust, Risalpur campus
Keywords: Urban flooding; DHA; GIS; Drainage networks; land encroachment


Flood has become an immense phenomenon in Pakistan. On August 2020 DHA Karachi was badly affected by urban flooding. This study discusses that poorly maintained drainage networks are the factors that caused urban flooding in DHA. This study aims to discover the factor that led to the urban flooding in DHA and what damages are caused. Methodology greatly includes questionnaires. GIS has been used for carrying out mapping of DHA surface drainage networks. The data collected from the questionnaires showed that poor drainage network was the main cause of urban flooding in DHA and phase 6 was mostly damaged as a lot of land encroachment has been done in this phase. Streets were mostly damaged as stagnant water caused crackers in them thus causing power outrage and difficulty in evacuation.  This study may provide a guideline to disaster planning, management, and development authorities.

Author Biography

Jawed Iqbal, SO Nust at National institute of Transportation, Nust, Risalpur campus

SO Nust at National institute of Transportation, Nust, Risalpur campus


Adetunji, M.; Oyeleye, O. Evaluation of the causes and effects of flood in Apete, Ido Local Ahmed I., R. Rudra. B. Gharabaghi, J. Dai, M. Peacock, and M. Widaatalla. 2013.

Danumah, J. H., Saley, M. B., Odai, S. N., Thiel, M., & Akpa, L. Y. (2016). Remote Sensing Based Analysis of the Latest Development and Structure of Abidjan District, Cote d’Ivoire. Geoinfor. Geostat. Overview, 5.

Di Baldassarre, et al. (2013) ‘Socio-hydrology : conceptualising human-flood interactions’.

Greiving, S., Fleischhauer, M., &Lückenkötter, J. (2006). A methodology for an integrated risk assessment of spatially relevant hazards. Journal of environmental planning and management, 49(1), 1-19.

H.LCloke,F.Pappenberger “Ensemble flood forecasting: A review” Elsevier Journel of Hydrology, vol. 375, pp.613- 626,September 2009.

IPCC. 2014. ―Summaryforpolicymakers,‖ in Climate Change 2014: Impacts, Adaptation, andVulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth AssessmentReport of the Intergovernmental Panel on Climate Change, edited by Field, C.B.,V.R. Barros, D.J. Dokken, K.J. Mach, M.D. Mastrandrea, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O.Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, andL.L. White. Cambridge, 1-32. The United Kingdom and New York, NY, USA: Cambridge UniversityPress.

Nasiri, H.; Shahmohammadi-kalalagh, S. Flood vulnerability index as a knowledge base for

Nath, S. K. (2004). Seismic hazard mapping and microzonation in the Sikkim Himalaya through GIS integration of site effects and strong ground motion attributes. Natural Hazards, 31(2), 319-342.

Qin, H. P., Li, Z. X., & Fu, G. (2013). The effects of low impact development on urban flooding under different rainfall characteristics. Journal of environmental management, 129, 577-585. Qualtrics, 2021. How to use stratified random sampling in 2022.

Smith, K. (2003). Environmental hazards: assessing risk and reducing disaster. Routledge.

Snead, R. E. (1967). RECENT MORPHOLOGICAL CHANGES ALONG THE Socioeconomic evaluation of Swat river watershed project. Forest education division, Pakistan Forest Institute.

Yamane, T., 2016. How to calculate a Reliable Sample size using Taro Yamane Method.

How to Cite
Iftikhar, A., & Iqbal, J. (2023). The Factors responsible for urban flooding in Karachi (A case study of DHA). International Journal of Disaster Risk Management, 5(1), 81-103.