The Rushcutters Bay Catchment Flood Study constitutes the first stage of the management process for the Rushcutters Bay Catchment. Webb, McKeown & Associates were commissioned by Woollahra Municipal Council to prepare this flood study on behalf of Council’s Floodplain Risk Management Committee. The following report documents the work undertaken and presents outcomes that define flood behaviour for existing catchment conditions.

• Flood Study Report (PDF, 19.3 MB)
• Figure 1: Study Area (PDF, 2.0 MB)
• Figure 2: Comparison of Design and Historical Rainfall Mass Curves (PDF, 47.2 KB)
• Figure 3: Historical Data - Dates of Flooding (PDF, 2.1 MB)
• Figure 4: Historical Data - Types of Flooding (PDF, 15.7 MB)
• Figure 5: Questionnaire Results - August 2006 (PDF, 55.0 KB)
• Figure 6: DRAINS Model Network (PDF, 337.3 KB)
• Figure 7: SOBEK Model Extent (PDF, 7.1 MB)
• Figure 8: ALS Ground Surface (PDF, 426.0 KB)
• Figure 9: SOBEK 2D Grid and Inflows (PDF, 144.6 KB)
• Figure 10: Existing Pipe Capacity (PDF, 318.8 KB)
• Figure 11: 100y ARI Pipe Flows (PDF, 317.7 KB)
• Figure 12: 5y ARI Overland Flows (PDF, 318.3 KB)
• Figure 13: 10y ARI Overland Flows (PDF, 319.4 KB)
• Figure 14: 20y ARI Overland Flows (PDF, 319.0 KB)
• Figure 15: 50y ARI Overland Flows (PDF, 263.9 KB)
• Figure 16: 100y ARI Overland Flows (PDF, 318.5 KB)
• Figure 17: PMF Overland Flows (PDF, 318.8 KB)
• Figure 18: Peak Height Profiles (PDF, 45.8 KB)
• Figure 19: 5y ARI Flood Depths (PDF, 107.8 KB) 
• Figure 20: 10y ARI Flood Depths (PDF, 107.8 KB)
• Figure 21: 20y ARI Flood Depths and Contours (PDF, 216.2 KB)
• Figure 22: 50y ARI Flood Depths (PDF, 109.0 KB)
• Figure 23: 100y ARI Flood Depths and Contours (PDF, 211.6 KB)
• Figure 24a: PMF Flood Depths and Contours (PDF, 135.7 KB)
• Figure 24b: PMF Flood Depths and Contours (PDF, 175.6 KB)
• Figure 25: Floodplain Categorisation - 100y ARI (PDF, 65.8 KB)
• Figure 26: Floodplain Categorisation - PMF (PDF, 62.5 KB) 

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