Virginia State Route 110 Virginia State Route 110 State Route 110 (SR 110) is a primary state highway in the U.S. state of Virginia. Known as the Jefferson Davis Highway, the state highway runs from U.S. Route 1 (US 1) and Interstate 395 (I-395) in Crystal City north to I-66 in Rosslyn within Arlington County. SR 110 is a four- to six-lane freeway that parallels the Potomac River, providing a connection between several of Arlington's urban villages. The state highway also provides access to the Pentagon, which is the headquarters of the United States Department of Defense, the grounds of Arlington National Cemetery, and
Arlington County, Virginia property. (Ultimately, the name is a variant of Harlington, London, seat of the first Baron of Arlington; it in turn derives from Hygerǣd, an Anglo-Saxon noble's name.) George Washington Parke Custis, grandson of First Lady Martha Washington, acquired this land in 1802. The estate was eventually passed down to Mary Anna Custis Lee, wife of General Robert E. Lee. The property later became Arlington National Cemetery during the American Civil War, and eventually lent its name to present-day Arlington County. The area that now contains Arlington County was ceded to the new United States federal government by Virginia. With the