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 Fire Department transport units with one firefighter/EMT and one firefighter/paramedic. Arlington operates nine engine companies, three truck companies, two rescue companies and eight medic units. Additional medic units can be placed in service as necessary. The county is divided into two divisions, the North (112) and the South (111), with one Battalion Chief, an Advanced Paramedic Officer, an Assistant Fire Marshal and Deputy Fire Marshals in each division. Abbreviations: <nowiki>*</nowiki> - Indicates part-time units, often staffed during peak times only. Arlington County Fire Department is the primary all-hazards response agency for Arlington County, Virginia. In addition to ACFD, other fire departments operate