noun
- long bridges, especially ones with a series of arches, that carry roads or railways over valleys or other roads
Examples
- The ancient Roman viaducts still stand after two thousand years.
- The railway viaducts span the deep valley between the mountains.
- Engineers designed massive stone viaducts to carry the highway over the river.
- Several historic viaducts in the region are now protected landmarks.
- The train crossed three different viaducts on its journey through the countryside.
- Modern concrete viaducts replaced the old wooden bridges.