July 4th Preps Underway At Esplanade

BOSTON (CBS) - A crew of 100 is working around the clock for the biggest show of the year along the esplanade.

Lights, speakers, and video boards are all going up and being tested.

Read:Survival Guide For Spending July 4th on the Esplanade

"It's about the audience we try to cater to the half million people that are in the esplanade and not just here in the oval," said site manager Ed Slapik.

WBZ-TV's Jonathan Elias reports

Offshore, the Charles River is equally as busy.

The Coast Guard is on patrol, keeping a watchful eye while 15,000 pounds of colorful explosives are being loaded up.

Eric Tucker, the guy in charge of setting up the fireworks, says it's all about the rhythm of the show and his fireworks are like musical notes.