Transcription of Engineering Design Specification D09 Stormwater …
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Engineering Design Specification D09 Stormwater drainage ( Design ) Print version is uncontrolled. Current version is maintained on Wingecarribee Shire Council Website in searchable PDF format. This document is a modified version of AUS-SPEC 0074 Stormwater drainage ( Design ) Wingecarribee Shire Council D09 Stormwater drainage ( Design ), version Page 2 of 33 Table of Contents 1 General .. 3 Introduction .. 3 Responsibilities .. 3 Interpretation .. 3 2 Pre- Design planning .. 5 Land use Planning: .. 5 Stormwater management .. 5 Consultation .. 6 3 Design criteria Stormwater drainage systems .. 6 General .. 6 Hydrology .. 8 Hydraulics .. 11 Major structures .. 17 Interallotment 20 Gross pollutant traps (GPT) and sediment traps .. 21 Constructed wetlands and ponds .. 22 Buffer strips, vegetated swales and bio-retention systems.
• Dual drainage: The major/minor approach to street drainage. • Major system: The network of planned and unplanned drainage routes providing safe, well-defined overland flow paths for rare and extreme storm runoff events. It includes roads, natural channels, streams, culverts, community retention/detention basins and other facilities.
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