Fast-food chain Sonic Drive-In has filed plans to build a new restaurant in Prince William County, its first outpost along the Interstate 95 corridor in Northern Virginia.

The 1,400-square-foot restaurant, with two drive-thru lanes, 12 pull-up ordering stalls and a dining patio, will be located at 4115 Talon Drive in Dumfries, part of the Barracks Row at Quantico commercial development less than a mile northwest of the I-95 interchange at state Route 234. The location “will constitute a flagship Sonic design that will serve as a benchmark for future restaurant drive-thru development,” according to a written narrative accompanying the application, filed by Noah Klein of Venable LLP.

Sonic, which of course sells burgers and hot dogs but is probably best known for its drinks (large variety of shakes, slushes) and sides (tots, onion rings, mozzarella sticks), only operates two franchised restaurants in Northern Virginia, one in Manassas and another in Leesburg. John Cove Dumfries…