The cobblestone workers do more than just cobblestones. They are part of a unit that inspects and maintains sidewalks, including installing pedestrian ramps at curbs to improve access. Most curbs are ...

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The engineering ingenuity that turned the fiery collapse of one of I-95’s busiest stretches into a Philly-style comeback ...

A tanker explosion under I-95 in Philadelphia killed a driver and triggered an urgent two-week rebuild using foamed-glass ...

America’s most famous landmarks draw millions each year, all hoping to experience the postcard magic they’ve seen on screen.

Scientists in Singapore have found a way for concrete to absorb CO2 instead of emitting it. Could this invention ...