Next Article in Journal
Glacial Stream Ecology: Structural and Functional Assets
Next Article in Special Issue
Green Infrastructures for Urban Water System: Balance between Cities and Nature
Previous Article in Journal
The Science behind Scour at Bridge Foundations: A Review
Previous Article in Special Issue
Sustainable Rainwater Management Concept in a Housing Estate with a Financial Feasibility Assessment and Motivational Rainwater Fee System Efficiency Analysis
Open AccessArticle

Performance Evaluation of Stormwater Management Systems and Its Impact on Development Costing

School of Natural and Built Environments, University of South Australia, Mawson Lakes 5095, Australia
*
Author to whom correspondence should be addressed.
Water 2020, 12(2), 375; https://doi.org/10.3390/w12020375
Received: 29 November 2019 / Revised: 20 January 2020 / Accepted: 24 January 2020 / Published: 30 January 2020
The contribution of this paper is a comparison of the installation cost of a conventional drainage system consisting of a network of pits and pipes, with that of a hybrid drainage system comprising a network of pits and pipes, supported by allotment scale infiltration measures in a modern greenfield residential development. The case study site is located in Pipers Crest, near Strathalbyn, South Australia. This as-built site consists of 56 allotments, 42 pits (hence 42 sub-catchments), one detention basin and over 1000 m of drainage pipes. In this study, conventional and hybrid (combination of conventional and Water Sensitive Urban Design, WSUD systems) drainage systems were designed to convey minor storm events of 10% annual exceedance probability (AEP), and checked for major storm events of 5% AEP, using the DRAINS model and/or source control principles. The installation costs of the conventional and hybrid drainage systems were estimated and compared based upon cost estimates derived from Australian literature. The results of the study indicate that satisfactory drainage was possible using the conventional or hybrid system when the two systems were designed to have outflow not exceeding the pre-developed flow. The hybrid drainage system requires smaller pipe sizes compared to the conventional system. Also, the size of the detention basin and maximum outflow rate of the hybrid system were smaller than those for the conventionally drained site. The installation cost of the hybrid drainage system was 18% less than that of the conventional drainage system when the objective was to accommodate 10% and 5% AEP storms. View Full-Text
Keywords: urban drainage; DRAINS model; source control; WSUD; costing urban drainage; DRAINS model; source control; WSUD; costing
Show Figures

Figure 1

MDPI and ACS Style

Akhter, F.; A. Hewa, G.; Ahammed, F.; Myers, B.; R. Argue, J. Performance Evaluation of Stormwater Management Systems and Its Impact on Development Costing. Water 2020, 12, 375.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop