Covered bridge

Covered bridge over the Rhine in Vaduz outside viewand inside view showing wooden beam construction

A covered bridge is a timber-truss bridge with a roof and siding which, in most covered bridges, create an almost complete enclosure. The purpose of the covering is to protect the wooden structural members from the weather. Uncovered wooden bridges have a lifespan of only 10 to 15 years because of the effects of rain and sun.

单词	Enclosed bridge
释义	Enclosed bridge 原声例句当月 CNN 10 学生英语 2021年9月合集 The Pickering Pedestrian Bridge is now officially the longest enclosed pedestrian bridge on the planet. 皮克林人行桥现在正式成为世界上最长的封闭人行桥。英语百科 Covered bridge A covered bridge is a timber-truss bridge with a roof and siding which, in most covered bridges, create an almost complete enclosure. The purpose of the covering is to protect the wooden structural members from the weather. Uncovered wooden bridges have a lifespan of only 10 to 15 years because of the effects of rain and sun.
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Enclosed bridge

Covered bridge