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preliminary flood risk assessment drain london

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CONTENTS<br />

Executive Summary..........................................................................................<br />

1 Introduction........................................................................................... 1<br />

1.1 What is a Preliminary Flood Risk Assessment? ................................... 1<br />

1.2 Background .......................................................................................... 1<br />

1.3 Objectives............................................................................................. 2<br />

1.4 Study Area – Geography Extent........................................................... 2<br />

1.5 Study Area – Demographics................................................................. 3<br />

2 Lead Local Authority Responsibilities................................................... 5<br />

2.1 Legislative Background ........................................................................ 5<br />

2.2 Leadership and Partnership ................................................................. 6<br />

2.3 Stakeholder Engagement ..................................................................... 7<br />

2.4 Public Engagement .............................................................................. 7<br />

2.5 Other Responsibilities........................................................................... 8<br />

3 Methodology and Data Review ............................................................ 9<br />

3.1 Data Sources........................................................................................ 9<br />

3.2 Availability .......................................................................................... 10<br />

3.3 Limitations .......................................................................................... 10<br />

3.4 Security, Licensing and Use Restrictions ........................................... 11<br />

3.5 Quality Assurance .............................................................................. 11<br />

4 Past Flood Risk .................................................................................. 12<br />

4.1 Summary of Past Floods .................................................................... 12<br />

4.2 Significant Harmful Consequences..................................................... 14<br />

4.3 Interactions with Other Flooding Sources........................................... 15<br />

5 Future Flood Risk ............................................................................... 16<br />

5.1 Summary of Future Flood Risk........................................................... 16<br />

5.2 Locally Agreed Surface Water Information ......................................... 21<br />

5.3 Impact of Climate Change .................................................................. 22<br />

5.4 Impact of Future Development ........................................................... 23<br />

6 Review of Indicative Flood Risk ......................................................... 26<br />

6.1 Extent of FRA ..................................................................................... 27<br />

6.2 Review of Comments ......................................................................... 27<br />

7 Identification of Flood Risk Areas....................................................... 28<br />

7.1 Amendments of FRA .......................................................................... 28<br />

UA002334 - Drain London— London Borough of Brent PFRA<br />

Hyder Consulting (UK) Limited-2212959 Page i<br />

o:\frr review monitoring & reporting team\publishing\unknown\brent\brent_par.docx

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