Steps of bridge Construction. | The Constructor - Civil Engineering Home

VIDEO of Unified Command crews lifting and removing a 420-short-ton segment of the Key Bridge from the bottom of the Patapsco River on June 3-4. **Day 1: Salvors pounded for hours with a concrete breaker **Day 2: They made surgical cuts with blow torches **This was the final large segment steel truss blocking about 40% of the 700ft wide x 50ft deep Fort McHenry Federal Channel. **You can see up close how salvors used torches to cut away "hangers" from the main structure **The structure was fully

RECORD BREAKER: The newly opened longest cross-sea bridge in the world also features the world's deepest underwater tunnel. Nine years since construction began and $20 billion later, the 34-mile structure is finally complete. https://abcn.ws/2EGfqqS | ABC News