Breach of SRR from flood
Publish date
02 September 2025
Case ID#
3113
Title
Breach of SRR from flood
Nation
England
Regulator reference no.
302
Legal status
Non-statutory
Reservoir type
Impounding
Reservoir capacity
10M+ m3
Year of construction
Unknown
Main construction type
Earth fill embankment
Dam height
5 - 9.99 metres
Dam flood category
Other / Not applicable
Hazard class
Undesignated / Unclassified
Reservoir use
- Other
Owner type
Unknown
Date & Time of incident
22 May 2006 - 12:00
Date incident closed
Observations that caused the incident to be declared
- Dam or embankment overflowing or overtopping
Describe the incident
This dam failed due to flood inflow. The dam overflowed causing erosion of the downstream shoulder and eventual breaching of the dam. The embankment was inadequately designed, as it was constructed of an uncontrolled mixed fill material, which contributed to the failure. The spillway provision was also inadequate
Supporting photos
Natural processes which initiated or contributed to the incident
What were the main contributing factors to the incident occurring?
Dam factors
- Other dam factors (describe below)
External factors
- None
Shortcomings
- Design shortcoming
- Construction shortcoming
What was the root cause of the incident?
Impacts on the reservoir
- External erosion
Supporting photos
Describe any human factors which influenced the incident
Describe any instrumentation at the reservoir and how this was used in warning of the incident or providing monitoring during the incident
No instrumentation was installed.
Was instrumentation effective leading up to and during the incident?
Not Applicable
Describe any assistance by external parties and impacts on the downstream population
Fire brigade was called. Telephone calls were made to bank-side residents.
Summary of studies or investigations undertaken
None.