Blockage and Debris

JBA River Hydraulics and Modelling training course

This one day course covers the latest research and practices for assessing flood risk and structural loading due to floating debris and sediment for single assets and at a catchment scale. As well as case studies, there will be hands-on exercises and also use of a portable hydraulic flume to illustrate key hydraulic principles.

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Topics covered:

  • Blockage processes
  • Debris sources and transport
  • Debris transport
  • Estimating debris volume
  • Flood impacts of blockage
  • Structural loading assessment due to debris and blockage
  • Blockage at screens, culverts, bridges and open channels
  • Modelling blockage
  • Catchment management to reduce blockage

Any professional who is likely to be involved in the specifying, design or operation of assets within a river and wishing to assess the risk debris presents. It is also relevant to managers and regulators involved in consenting hydraulic structures and flood risk assessments.

To have a good appreciation of the causes and consequences of blockage and how to assess the risk. The exercises will include an example blockage risk assessment and consequence assessment.


Jeremy is the Executive Chairman of JBA Group. He has over 32 years’ water engineering, management and hydrology experience working in the UK and overseas and has published and lectured widely on these subjects. He has been involved with flood risk mapping (at national and local scales) since 1984 and is Framework Director for the Water & Environmental Management Framework with UK flood management authorities. He is also a lecturer on the Lancaster University and JBA PgCert course on river hydraulics.

We can help you

If you would like to discuss our training please contact Felicity Clarke.

Email Felicity Clarke
+44 (0)1756 799919