Investigating the Causes of Stormwater Drain Failure: The Case of Akaki Kality Subcity,
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Date
2024-05-01
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Addis Ababa University
Abstract
Ditch, channel, river, stream, pond, and lake drainages are essentially constructions that gather, transport, and discharge runoff from the surface of road pavements and other catchment areas to artificial or natural waterways. Drainage issues might be the result of improper design, use, or construction and poor waste disposal practices. Storm runoff overflows drainage channels, spews debris, floods pavements, obstructs traffic, and causes accidents, as seen in the majority of Addis Abeba city roads. Water on the road can cause traffic jams, impair traction, raise the risk of hydroplaning, diminish vision owing to splash and spray, and make it harder to drive a car when the front wheels hit puddles. The objective of this study is to examine the reasons for and effects of drainage failure in the Akaki Kality. Drainage systems are essential for managing rainwater runoff and avoiding flooding. However, Akaki Kality has recently been plagued by substantial drainage issues, leading to flooding, property destruction, and public health problems. Thus, to address this issue, a comprehensive study conducted to recognize the primary causes of drainage failure in the area. Data was gathered using a variety of methods, including surveys, site visits, interviews, observation, and photography, and is then assembled and shaped using the SPSS analysis. Residents who live close to the research area's corridor and offices that deal directly with drainage were called and given the questionnaire. The data indicated that sedimentation, litter, and debris buildup are the main causes of drainage system failure in the study area. Residents' waste dumping into the channels, inadequate channel size, and shoddy construction work are the culprits. In order to control, direct, and monitor the design and construction of storm runoff drainages, to regularly inventory drainage assets & furniture, to draft drainage master plans, to raise awareness of solid waste disposal, to routinely clean the channels, and to upgrade existing structures, municipalities must establish a legally required and dedicated drainage department. The study's findings help us comprehend the difficulties and complexity of drainage failure in Ethiopia, with an emphasis on the Akaki Kality sub-city. The findings will give urban planners, decision-makers, and local authorities useful information for creating sustainable drainage systems that can survive the effects of climate change and increased urbanization.
Keywords: Debris, Drainage, Drainage failure, Flooding, Runoff, Waste disposal