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Revised Stormwater Mangement Plan
Attached to the e-mail Email 2 of 2 - Outstanding Matters - 67 Elanda Street - MCU21/0190.
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Log in to see the plans as drawn65-67 Elanda Street, Sunshine Beach Site Based Stormwater Management Plan _____________________________________________________________________________________________ Table of Contents 1. EXECUTIVE SUMMARY 4 1.1 Introduction 5 1.2 Objectives 5 1.3 Development Details 6 1.4 Site Characteristics 6 1.4.1 External Catchment Analyses 6 1.4.2 Existing Land Use and Stormwater Discharge 6 1.4.3 Proposed Land Use and Stormwater Discharge 7 2. LAWFUL POINT OF DISCHARGE 8 3. HYDROLOGICAL MODELLING AND ANALYSES 9 3.1 Modelling Parameters and Strategy 9 3.2 Modelling of Peak Discharge and Impact Assessment 10 3.3 Modelling of Detention Devices 15 3.4 Stormwater Quality 19 4. CONCLUSIONS & RECOMMENDATIONS 20 4.1 Proposed Stormwater Management Plan 20 4.2 Recommendations 20 4.2.1 Construction Phase 20 4.2.2 Pre-Construction 20 4.2.3 During Construction 20 4.2.4 Post Construction 21 4.2.5 Operational Phase 21 5. REFERENCES 22 Appendices A ~ Survey Plan & Architectural Plans B ~ Rainfall Intensity and Coefficients from BOM C ~ Runoff Hydrographs from Storm Events with Multiple Durations D ~ Rational Method Calculation E ~ Concept Stormwater Drainage Layout Plan F ~ Detention Tanks Flow Hydrographs and Water Levels File Name: WCD-22936 – 65-67 Elanda_SWMP.docx Revision: E 3
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