Levees & Weirs

Levees, weirs and hydraulic structures: design essentials

Levees and weirs hold back water, so seepage and erosion are as important as strength. Their design depends on good ground data and careful hydraulic detailing.

5 min read

Seepage and piping

Water flowing under or through an embankment can carry soil away. Cut-off walls, filters and drains control it.

Stability

Slopes are checked for steady flow and rapid drawdown, when water levels drop faster than the embankment can drain.

Erosion and spillways

  • Rock protection and revetments
  • Concrete spillways and energy dissipators
  • Gates and outlet structures
  • Construction supervision and testing

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