RAB support the launch of £50m Leeds Flood Alleviation Scheme
Nov 2, 2017

Ahead of the launch of the innovative Leeds Flood Alleviation Scheme (FAS)on the 4th October, RAB designed, planned and delivered a go-live exercise to ensure readiness of staff responsible for operating the scheme. As one of the largest fluvial flood defence schemes in the country, it includes the installation of moveable weirs at Crown Point and Knostrop, costing £50 million. The FAS will reduce the flood risk to 3,000 homes, 500 businesses and 300 acres of land.Leeds FAS in construction

The aim was to deliver an exercise which facilitated the effective handover of the Leeds FAS from the contractor to Leeds City Council. This involved delivering a series of half-day exercises so that Duty Flood Risk Managers and Site Operatives could practice using the new Operation and Maintenance Procedures and simulate the lowering and raising of the new weirs.

The exercise had the following objectives:

By the end of the exercise, players will have:

  • an understanding of some of the key principles of effective incident management.
  • tested the Leeds FAS Operations and Maintenance Procedures, which include:
    • responding to river level and flood forecast information;
    • Duty Flood Risk Manager decision making processes;
    • FAS activation procedures;
    • Site Operative deployments; and
    • weir operation procedures.
  • had initial training in the use of new FAS procedures and operation.
  • participated in a post-exercise debrief to identify lessons for the future improvement of the operation of the Leeds FAS.

RAB staff developed a fluvial flooding scenario for the River Aire using hydrometric data from previous flood events and designed flood forecasting and warning products used by the Flood Forecasting Centre and the Environment Agency to add realism to the exercise.  Our team role played other organisations to give Council players a sense of acting during the real thing.

Following the exercise, RAB led a hot debrief and authored a post-exercise report with a number of recommendations to continue to improve flood incident response and the operation of the new FAS.