WMAR Baltimore, MD on MSN

Massive cranes install 340,000-pound test pilings for Key Bridge replacement

A dance of heavy machinery is playing out on the Patapsco River as hundreds of tons of steel move intricately to rebuild an iconic piece of Baltimore infrastructure. The Maryland Transportation ...
Go2Tutors on MSN

Bridges that Move to Let Ships Pass

Bridges usually look like permanent structures, firmly crossing rivers, bays, or canals. But a few aren’t stuck in place – ...