Inland Flood Risk Management Local Authority approach (Leeds)

Transcription

1 Inland Flood Risk Management Local Authority approach (Leeds) David Sellers, Principal Land Drainage Engineer LANDFORM Event (30 July 2009) Serious and widespread flooding in Leeds Aug 2004 and May 2005 From multiple sources -Sewers -Watercourses -Highway drains & gullies -Surface run-off

2 Including many sources that fell under Council responsibility! Development

3 Water Asset Management Working Group (now FRMG) set up - 33 point Action Plan ( 1.2 million p.a.) approved by Council ACTION PLAN: KEY POINTS LEADERSHIP -Put own house in order - Centralise watercourse responsibility - Establish an effective maintenance regime - 50% increase in gully cleansing machines - Highway gully and culvert survey - Rapid sandbag filling machines - Increase size of Land Drainage Section - Step up inspection regime (visual and CCTV) - Programme to control run-off from Council parkland - SFRA PARTNERSHIP -Establish partnerships with Environment Agency and Yorkshire Water - To investigate flooding (ad hoc LCC/YW report on 2004 flooding) - To collaborate on development control and flood risk -Engage with third parties to reduce flytipping (e.g. supermarket trolleys) PARTICIPATION - Engage with community in informing of flood risk, consideration of mitigation work and helping people to help themselves

4 ROUTINE MAINTENANCE More than 70 grids and blockage hot-spots cleared fortnightly) + critical watercourse inspections PLANNED MAINTENANCE Debris removal Wyke Beck (Jul 2005) Removal of mature tree (Mar 2006) 130 tonnes removed. and 50 shopping trolleys!

5 REACTIVE MAINTENANCE GPS positioning of all highway gullies to enable risk based maintenance Gully sucker fleet expanded by 50%

6 GIS records of culverts and Highway drains (no statutory duty therefore damage) Leeds Strategic Flood Risk Assessment

7 EMERGENCY RESPONSE Monitoring rainfall Mitigating effects of flooding where possible Providing emergency assistance to vulnerable groups 1 of 3 rapid sandbag filling machines Real-time rainfall radar images displayed in the Land Drainage office Leeds CC emergency incident coordination vehicle PITT REVIEW: The Review believes that local authorities, as part of their leadership and community wellbeing role, should positively investigate these local flooding problems and work with all relevant parties to establish the source of the problem and where the responsibility lies for addressing it. (6.11) Draft Flood and Water Management Bill

8 PARTNERSHIPS Strategic Flood Risk Management Board Leeds Director of Development (CHAIR) Yorkshire Water Waste Water Director Environment Agency Regional Director British Waterways Regional Director Leeds Risk & Emergency Planning Leeds Land Drainage Flooding Technical Forum Leeds Land Drainage (CHAIR) Leeds Highway Maintenance Yorkshire Water Engineers Environment Agency Engineers British Waterways Engineer IUD Pilot Projects West Garforth River Aire Studies Planning and Flood Risk Forum Leeds Development Control (CHAIR) Leeds Planning Strategy Leeds Land Drainage Environment Development Control Yorkshire Water Development Control 1 st Edition SWMP Wyke Beck

9 PARTICIPATION Ending supermarket trolley dumping + Trolley Collection Service 10,730 abandoned shopping trolleys collected in 12 months Jun 08 May 09 in Leeds TEMPORARY PROTECTION TO INDIVIDUAL HOUSES

10 Day of Action cleaning up banks of River Aire Leeds CC, EA, Yorkshire Water, and landowners Helping people to help themselves - In some locations, residents clear rubbish from beck and we collect Bids for DEFRA grant scheme for flood protection two successful (in both cases residents action groups helped to assemble the bids)