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échappée
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Headroom, clearance, английский
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Headwall, английский
- The device placed at the end of a bridge that comprises a large portion of the abutment. headwalls are used to retain the road formation soil around and above the abutments and prevent erosion at the abutment.
- A masonry or concrete retaining wall at the outlet of a drain.
- Портальный оголовок (трубы)
- The region of a cliff or rock face that steepens dramatically.
- A steep slope at the head of a valley; e.g. the rock cliff at the back of a cirque. compare - cirque headwall. gg
Headroom, clearance, английский
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