Behind the Scenes at the Great Bonac Fireworks Show

The Coluccio family: Two brothers, second-generation pyrotechnicians, worked together with their father, the chief on the Great Bonac Fireworks show. Joanne Pilgrim photos

Pyrotechnicians from Fireworks by Grucci started on Friday to set up for the Great Bonac Fireworks show over Three Mile Harbor in East Hampton last weekend. After two days of work, the show went off just at full dark on Saturday night, painting glimmering, shooting, shimmering effects across the night sky over a harbor full of boats anchored up to enjoy the show.

Fireworks shells are dropped into mortar tubes arrayed in grids and wired together in a sequence created by the show's choreographer.
Lower, sizzling effects are created by the smaller fireworks.
As a tugboat pushes the barge into position on the west side of Three Mile Harbor, people gathered along the shore and on boats wave, applaud, and toot air horns to thank the fireworks crew.
With work done for the moment, the crew waits on the barge, alone inside a safety zone, as night falls and showtime nears.
Inside a protective area on the barge, which rumbles underfoot with the concussive bursts as the fireworks are launched, the pyrotechnicians oversee the computerized program that sets off the show.
The aftermath: Returning to the dock in the dark, Steve Coluccio updates the chief pyrotechnician's record book. Cleanup must still be done, post-show and the next day.