Flow Measurement on Flood Polder

Flowing Waters - Flood Protection


  • Concrete duct 6 x 3.5 m (w x h)
  • Partially filled
  • 3 parallel ducts
  • Very high flow dynamics featuring flow rates up to 82 000 l/s

Definition of tasks

  • Detection of flood polder flow volumes of a large European river
  • Control of storage volume utilisation (12 000 000 m³ on 5.8 km² flooding area) to reduce flood damage
  • Highly dynamic and maintenance-free measurement insensitive to sedimentation


  • Three flow measurement systems Type NivuFlow 750 M3 with each using 3 flow velocity sensors have been used.
  • The sensors have been arranged according to a calibrated hydraulic model to achieve maximum possible accuracy.
  • Sensors have been installed on profiles in order to prevent them from soiling.


  • Cost-efficient sensor installation in existing construction
  • Quick and easy commissioning
  • High accuracy and reliability

Used products

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