Investigation of Flooding Problem in Urban Drainage System

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The case at Zenebe Werk in Addis Ababa, Ethiopia

Roads are among the basic infrastructures.

Drainage structures provided by the sides of roads should be well designed and constructed to the standard and managed properly such that the road serve the intended purposes.

Whenever, drainage structures fail, investigating the cause of failure will help to have some understanding on the root cause of problem and to make future designs better.

The general objective of this study is to investigate the storm drainage problem of Zenebewerk roundabout (located in West Addis Ababa, Ethiopia) and forward a sound scientific problem identification approach with recommendation of possible engineering remedial measures which might be applicable to similar problems in the city.

The study area gets flooded with relatively small rain fall intensity and results in traffic congestion for prolonged time.

Primary and secondary data collected were collected, analyzed and presented using Microsoft-excel, AutoCAD, ArcGIS, tables, graphs and percentages.

The catchment that contribute flow was delineated and stream network in the catchment was generated using DEM and the delineation made more precise by field survey.

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