2016 fireworks over the Delaware River in Philadelphia

In Philadelphia, Independence Day is a huge deal. Proof? Fireworks don’t just happen on July 4 — there’s a whole weekend’s worth of explosive displays.

The company hired to pull off this feat is New Castle-based Pyrotecnico, which staged three separate shows over the Delaware River this year. Per technician Kevin Stead, prep for the Friday debut started back on Wednesday night, and then the crew worked all day Saturday to get ready for a completely different — and larger — show that evening. Tonight’s finale will be something new entirely.

Billy Penn went behind the scenes to see how Pyrotecnico pulls it off.

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