 US 33 and SR 231 run together a short distance east to the Gordonsville Roundabout, where SR 231 heads southwest as Gordon Avenue toward Cismont and US 33 becomes concurrent with US 15 (James Madison Highway) along Main Street.The two highways pass the Exchange Hotel at their underpass of the Washington Subdivision, the Charlottesville–Orange rail line owned by the Buckingham Branch Railroad.At the southern edge of downtown Gordonsville, US 33 and US 15 leave Main Street and veer onto Martinsburg Avenue, which follows CSX's Piedmont Subdivision to the southern limit of Gordonsville, where the highways enter Louisa County.