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Publication - Guidance

Surface water management planning: guidance

Published: 5 Feb 2013
Part of:
Environment and climate change
ISBN:
9781782563785

Guidance to assist the responsible authorities in preparation of Surface Water Management Plans (SWMPs) to help with the management of surface water flooding.

58 page PDF

981.8kB

58 page PDF

981.8kB

Contents
Surface water management planning: guidance
Appendix 5 - Regional Pluvial Hazard maps

58 page PDF

981.8kB

Appendix 5 - Regional Pluvial Hazard maps

Table 1 - Model scenarios for the regional pluvial hazard maps
Scenario Return Period Loss Blanket Storm Duration (hours)
1 10 5 year rainfall return period in urban areas 1
2 10 5 year rainfall return period in urban areas 3
3 30 5 year rainfall return period in urban areas 1
4 30 5 year rainfall return period in urban areas 3
5 30 + climate change increase 5 year rainfall return period in urban areas 1
6 30 + climate change increase 5 year rainfall return period in urban areas 3
7 50 5 year rainfall return period in urban areas 1
8 50 5 year rainfall return period in urban areas 3
9 100 5 year rainfall return period in urban areas 1
10 100 5 year rainfall return period in urban areas 3
11 200 5 year rainfall return period in urban areas 1
12 200 5 year rainfall return period in urban areas 3
13 200 + climate change increase 5 year rainfall return period in urban areas 1
14 200 + climate change increase 5 year rainfall return period in urban areas 3

The areas to be modelled and output resolutions are shown in Figure A3.

Figure A3 - The Regional Pluvial Areas to be modelled

Figure A3 – The Regional Pluvial Areas to be modelled


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