The county announced drivers, cyclists and pedestrians were safe to use the Stark Street Bridge on Thursday. A wall beneath the structure in the Columbia River Gorge partially collapsed in mid ...
Interesting Engineering on MSN6mon
Human-built 5600-year-old underwater bridge found inside cave stuns scientistsHow geologists reached back 6,000 years in the past According to the study, a stone path and wall descend to a bridge that ...
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