Assertion: weir | /r/HasProperty | crested
Facets:
value: for much
type: TEMPORAL
Source sentences:
text: Weirs are broad crested if made of timber and concrete and thin crested if the crests are made of thin metal plates.
text: A common design would be one where a weir is broad-crested for much of its length, but has a section where the weir stops or is 'open' so that small boats and fish can traverse the structure.
text: Weirs are called sharp-crested if their crests are constructed of thin metal plates, and broad-crested if they are made of wide timber or concrete.