access and then becoming a limited access freeway. US 1 becomes a major artery for the state as it moves north of Rockingham. After Richmond County, it goes into Moore County with two expressway bypasses in Southern Pines, Vass, and Cameron. US 1 continues with the Jefferson Davis Highway label through Lee County and Sanford, and on to Cary and Raleigh. US 1 runs concurrently with US 64 through most of Cary, where the freeway recently underwent a major renovation and improvements that added lanes in both directions. North of Raleigh, US 1 (known as Capital Boulevard in northern Wake County) crosses I-540 and then again becomes a four-lane divided arterial to I-85 near Henderson. The North Carolina Department of Transportation (NCDOT) has begun a corridor study for this section of US 1. Moreover, NCDOT is planning to finish four-laning US 1 in Richmond County past NC 177 with a Rockingham bypass to the east. There are no plans from SCDOT to widen US 1 from the state line. From Henderson into Virginia, US 1 runs parallel with I-85 as a two-lane local road until the state line, where Virginia hosts a continuous third center lane for alternate passing toward US 58 before South Hill. Mid-Atlantic In the Mid-Atlantic, US 1 generally serves some of the most populated areas of the east coast. Through Virginia, US 1 is paralleled by Interstates: the remainder of I-85 to Petersburg, I-95 through Richmond and Fredericksburg to Alexandria, and I-395 into Arlington. In much of Virginia, US 1 was called the Jefferson Davis Highway by state law, although there are exceptions. South of Petersburg, it is known as Boydton Plank Road. Through some of Fairfax County and Alexandria, it is called the Richmond Highway. In February 2021, Virginia renamed all remaining portions of the Jefferson Davis Highway in the state to Emancipation Highway beginning on January 1, 2022. US 1 crosses the Potomac River with I-395 on the 14th Street bridges and splits to follow mainly 14th Street and Rhode Island Avenue through the District of Columbia. US 1 is at the minimum of three lanes (with alternate passing) from the North Carolina state line to Petersburg with occasional four-lane divided sections. North of Petersburg is a four-lane undivided roadway at the minimum to the DC line. The route of US 1 from Petersburg to the state line is parallel with the Atlantic Seaboard