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Flooding in San Salvador

Flooding in San Salvador. Carlos Felipe Gutierrez Fall 2010. Outline. The problem Objectives Obtaining main drainages Data Acquisition Analysis What was achieved What has to be done. The Problem. Severe flooding causes fatalities and property damages every year

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Flooding in San Salvador

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  1. Flooding in San Salvador Carlos Felipe GutierrezFall 2010

  2. Outline • The problem • Objectives • Obtaining main drainages • Data Acquisition • Analysis • What was achieved • What has to be done

  3. The Problem • Severe flooding causes fatalities and property damages every year • Overpopulation of the city from 0.5 million to 1.5 million • People living in constant danger

  4. Objectives • Identify main drainage rivers • Identify major flood spots • Obtain values of rainfall that would cause flood for a particular place

  5. Obtaining Main Drainages

  6. Include a basemap

  7. Main Drainage of the Metropolitan Area of San Salvador

  8. Data Acquisition • National Service of Territorial Studies (SNET) • Very limited data:- 1 stream gage station- 3 continuous rain gage stations- 3 intermittent rain gage stations • Bureaucracy • Reading studies made by SNET (Water related disasters)

  9. Analysis

  10. Flood spots

  11. Which rain stations use?

  12. Rain quantity creates floods http://www.youtube.com/watch?v=ue1vJPS7cPs

  13. Not always

  14. What was achieved • Identified the drainage rivers-Acelhuate River and Las Cañas River-Manmade drainages were not available for me • Identified major flood spots-La Malaga, La Vega, Santa Anita-ComunidadTutunichapa-Soyapango close to Las Cañas River-Colonia Escalon, Mejicanos (North west) • Realized how limited the data is

  15. What needs to be done • Stream gages throughout the city • 24 hour continuous rain gages • Estimate how the impervious cover is growing • Make the data available!!! • More strict design

  16. Question? • https://webspace.utexas.edu/cfg328/www/Term%20Paper.htm • azsakufel@mail.utexas.edu

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