It is part of ongoing construction along Route 29 in Vint Hill to break up rock for excavation.
Several commenters online pointed out the footage looked like a scene from the 1990 sci-fi action thriller "Tremors."
More blasting to break up rock for excavation as construction continues to regrade northbound #Route29 just south of Vint Hill Road in @Fauquier_County. All northbound lanes will remain closed through Aug. 2 @VaDOTCULP @Fauquier_County 🚧— VDOT (@VaDOT) July 16, 2019
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