Event Organiser: The British Dam Society

The Toddbrook Reservoir Incident, webinar


  • Lecture
  • Watch online
  • London
  • 06 July 2020
  • 14:00 - 19:45
The Toddbrook Reservoir Incident

About this event

Please note that this event is closed to the press.

In August 2019, Toddbrook Reservoir in north-west England was affected by two storm events in quick succession, resulting in damage to the auxiliary spillway, located on the main earth embankment dam. The concrete lining to the auxiliary spillway was damaged and erosion of the underlying dam shoulder material occurred, prompting fears of a dam breach.

An emergency evacuation of approximately 1500 persons from the downstream town of Whaley Bridge was completed. Multi-agency services were mobilised and the scour hole was infilled through use of a helicopter. Stream diversion and pumping works were initiated to empty the reservoir. Almost a week after the incident was declared, the residents were permitted to return to their homes.

The seminar will be delivered in 2 sessions.

Session 1 | 09:00 - 10:35

  • Incident identification and first steps
  • Day 1: Inspecting engineer mobilisation and initial response actions
  • Days 2-6: Monitoring, surveillance and river diversion improvements
  • Filling the Void
  • Incident command and multi-agency co-ordination
  • Incident closure

Session 2 |14:00 - 15:35

  • Interim improvements and the future of Toddbrook Reservoir
  • CRT incident investigation
  • Government Independent Review - investigation
  • Government Independent Review – summary and recommendations

Questions on any session should be e-mailed to [email protected]. Please give your name, affiliation and the name of the presenter that the question is addressed to. Questions should be submitted by the Monday 13 July. A Questions and Answers session will subsequently be recorded and posted here.


Session one

  • Alan Warren - BDS Chair
  • Chair: David Littlemore - BDS Vice-Chair
  • David Brown - Canal and River Trust
  • Richard Robson - Mott MacDonald
  • Billy Sheehy - Mott MacDonald
  • Peter Down - Mott MacDonald

Session two

  • Chair: David Littlemore - BDS Vice-Chair
  • Eddie Quinn - Kier
  • Wing Com. Gary Lane MBE - RAF
  • Steve Ovington - OnSite
  • John Perkins - Derbyshire Police
  • Kem Mehmet - Derbyshire Police
  • Ms Chris Wilman - Whaley Bridge residents
  • Ms Mo Wild - Whaley Bridge residents
  • Tony Deakin - Environment Agency
  • Simon Bamford - Canal and River Trust
  • Natalie Bennett - Canal and River Trust

Session three

  • Chair: Alan Warren - BDS Chair
  • Professor David Balmforth - Former ICE President
  • Dr Peter Mason - Damsolve Ltd
  • Dr Andy Hughes - Dams and Reservoirs

For more information please contact:

ICE Events Team

e: [email protected]
t: +44 (0)20 7665 2226