PHOTOS: The Big Dig, Saturday, April 21, 2018

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Elliott Baker, 4, of Covington runs through a tube near the sand lot.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. The line just before the 10 a.m. entry goes back to the fairground gates.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. The line forms for entry at 10 a.m.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky. The family-friendly event showcases heavy equipment that visitors can run under supervision of trained operators. Dominick Willoughby of Richmond, Ky., looks over his shoulder to back up an excavator while Sonny Gay supervises.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Lillian Stradlin of Burlington gets a helping hand from Kyle Finn of Independence as she operates an excavator.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Cousins Kellen Holbert and Charlie Ventre of Harrison conquer a mound of dirt.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Jayden Vaugh of Walton picks up tires under the supervision of Barney Henderson of Independence.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Christopher Heckle of Hebron sits at the wheel of a cement mixer.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Tony Raniero of Union guides Phoebe Gadd, 6, of Florence in excavator operation.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Isaac Bainbridge, 5, of Ft. Mitchell tries on a firefighter's helmet at the wheel of a fire truck.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Bobby Villarreal of Boone County and Brantley Kafka of Burlington play in a giant sandbox with other children.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Gus Heidrich, 3, of Ft. Wright plays with toy trucks in the giant sandbox.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Aidan Sczurek and Dylan Kallenbach of West Chester watch and wait for their turn to operate some heavy machinery.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Families sign waivers at the gate and children receive plastic hard hats.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Wade West of Florence gets to operate a large tractor from Riegler Blacktop under the supervison of Jacob Middendorf of Walton.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Aidan Niehaus of Milford is held by his mother, Kelley Niehaus, as they wait in line to operate some machinery. Aidan brought his own hard hat and safety vest from home.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Richard Jeffreys of Colerain operates an excavator from Art's Rentals under the supervision of Michael Sturtz of Coldspring.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. People wait their turn to sit in the cab of a 40-ton dump truck.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Chris and Kaitlyn Reis of Alexandria check out a 40-ton dump truck.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Evan and Mike Branigan of Green Twp. watch a knuckle boom in action.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Kellen Holbert, 6, of Harrison sits at the wheel of an asphalt paver.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Travis Wolfinbarger of Morning View watches as Kellen Holbert and Charlie Ventre come down off an asphalt paver.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Kake Graman of Bridgetown holds his son Sam as he climbs a firefighter's ladder.

The Big Dig took place on Saturday, April 21, 2018, at the Boone County Fairgrounds in Burlington, Ky., a family-friendly event showcasing heavy equipment that visitors can run under supervision of trained operators. Lines form around different pieces of equipment at the fairgrounds.