Term of the Road Dictionary

intrados

  • Language : PIARC Road Dictionary / English
  • Theme : Structures Other Structures and General Items
  • Definition : Curve defining the interior (lower) surface of an arch or vault [FHWA/PIARC]. Note: the term "soffit" is also used for the underside of a bridge deck slab or a beam.
  • Synonyms : soffit

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