Lindsey, Davis (2024) An investigation into urban stormwater design procedures and the degree to which they cater for increasing precipitation patterns. [USQ Project]
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Abstract
The impacts of climate change continue to accentuate with rainfall events of greater intensities than ever before continuing to be observed. This paper investigates the impact that increased rainfall has in terms of stormwater runoff within residential subdivisions and the performance of existing drainage networks when subjected to these rainfall events.
The area at the center of this research is a sub catchment within a 67.9ha residential subdivision located in South-West Victoria. The research presented herein focuses on key pit and pipe segments within the catchment which include inlet pipelines to basins and pit/pipe networks at low points within the subdivision internal road network. Detention basin volume capacity is also evaluated when the network is subject to design storms of increasing intensities.
Civil Site Design (CSD) is used to model the performance of the pit and pipe network with pipe flows and maximum capacities compared. Boyd’s formula is used to determine required basin storage for each rainfall event with the catchment’s allowable discharge being limited to the original design storm pre-development levels.
The results obtained through this research indicate that pipelines have a considerable degree of resilience when subjected to rainfall events of greater intensities than originally designed to. It was found that detention basins have the least resilience of the stormwater infrastructure assessed within this paper and pose the greatest risk to urban flooding. It is hoped the research conducted and corresponding findings presented within this paper will encourage further work to be undertaken in the study area of stormwater network performance and urban flooding.
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| Item Type: | USQ Project |
|---|---|
| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -) |
| Supervisors: | Chadalavada, Sreeni |
| Qualification: | Bachelor of Engineering (Honours) (Civil) |
| Date Deposited: | 16 Mar 2026 05:01 |
| Last Modified: | 16 Mar 2026 05:01 |
| Uncontrolled Keywords: | rainfall; stormwater; residential; drainage networks |
| URI: | https://sear.unisq.edu.au/id/eprint/53133 |
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