Question

john roebling, the designer of the brooklyn bridge,
was a civil engineer who invented twisted wire - rope cable.
also worked on the design of the george washington bridge.
took over the building of the bridge after his father died.
emigrated to the united states from czechoslovakia.

Explanation:

John Roebling was a civil engineer. He invented the twisted wire - rope cable which was crucial for the Brooklyn Bridge. The George Washington Bridge was designed later (in the 1920s - 1930s) and not by Roebling. Washington Roebling (his son) took over the Brooklyn Bridge construction after John Roebling's death. John Roebling emigrated from Germany, not Czechoslovakia.

Answer:

was a civil engineer who invented twisted wire - rope cable.