SR110 is a part of the Pentagon road network, a network of freeways and surface roads built concurrent with the construction of the Pentagon in the early 1940s. The state highway received its numerical designation in 1964 when maintenance responsibility was transferred to the Virginia Department of Transportation. SR110's most significant changes in routing were relocation of the highway in Rosslyn to tie into I-66 in the 1980s and relocation of the freeway at the Pentagon to provide a larger security buffer for the building after the September 11 attacks. The highway is sometimes closed for large events held at or around the Pentagon, including the Marine Corps Marathon.[3] In 2019, SR 110 was renamed to Richmond Highway.
Route description
View north from the south end of SR 110 at I-395/US 1 in Crystal City
SR110 begins at a partial interchange with US1 (the southern continuation of the Richmond Highway) in Crystal City where US1 joins I-395 to cross the 14th Street Bridge into Washington; the interchange allows access to and from US1 in the direction of Alexandria. Immediately to the north, the state highway has a partial interchange with I-395 (Henry G. Shirley Memorial Highway) that allows access from southbound SR110 to northbound I-395 and US1 and from southbound I-395 to northbound SR110. The southbound exit ramp also includes a ramp for Army–Navy Drive, one of the main streets of Pentagon City. North of I-395, SR110 heads north with six lanes immediately to the east of the Pentagon reservation. The southbound freeway has ramps to and from the Pentagon South Parking area, which serves as the main and visitor entrance to the Department of Defense headquarters. SR110 passes under a pair of pedestrian bridges from Pentagon parking areas on between Boundary Channel Drive, which parallels the freeway, and the Boundary Channel's Pentagon Lagoon. SR110 has a southbound exit to and entrance from the Pentagon Mall Terrace and River Terrace areas before the highway leaves the vicinity of the Pentagon by passing under SR27 (Washington Boulevard). The partial interchange between the highways allows access from eastbound SR27 to northbound SR110 and from southbound SR110 to westbound SR27, which leads to southbound I-395 and SR244 (Columbia Pike).[1][4]
View south along SR 110 at Marshall Drive
North of SR27, the freeway passes between the Washington Metro's Blue Line on the east and the grounds of Arlington National Cemetery to the west. SR110 has a northbound exit to and southbound entrance from Memorial Drive, which is the main entrance to the national cemetery and also leads to the Arlington Memorial Bridge to Washington and the George Washington Memorial Parkway. SR110 continues north with four lanes and has its sole at-grade intersection at Marshall Drive, which leads to the Marine Corps War Memorial, also known as the Iwo Jima Memorial, and the Netherlands Carillon. The highway leaves the cemetery for the urban village of Rosslyn, where the highway reaches its northern terminus. SR110 passes under US50 with no access then has a northbound exit and southbound entrance for Wilson Boulevard, one of the main streets of Rosslyn. Immediately to the north, the highway ends at a partial interchange with I-66 allowing access to and from the direction of Falls Church. Westbound I-66 leads to Dulles International Airport and Front Royal.[1][4]
SR 110 southbound at SR 27
History
1945 map of the Pentagon road network, including what is now SR 110
The road was constructed as a part of the Pentagon Road network during World War II. Those roads were transferred to the Virginia Department of Highways on December 17, 1964, and assigned the number SR110. At this time, the north end was reconfigured to accommodate the construction to the Theodore Roosevelt Bridge in 1964 over the Potomac River and the re-routing of Arlington Ridge Road. As a result, the north end of SR110 was shifted west toward the prior bridge that carried US50 over Arlington Ridge Road. SR110 then proceeded north on the Arlington Ridge Road right-of-way, under the new bridges that carried the approaches to the Roosevelt Bridge reaching Wilson Boulevard. The road extended north to merge with the future I-66 at the Virginia end of the Roosevelt Bridge. Until the 1980s, this extension ended with the exit and entrance ramps to Lee Highway at Lynn Street. However, when I-66 was completed, this stub was extended so that SR110 had full access to westbound I-66. One block of the historic Arlington Ridge Road was left to act as a frontage road between Wilson Boulevard and 15th Street North.
Following the September 11 attacks, SR110 was closed to trucks and tour buses due to its proximity to the Pentagon. Police checkpoints were staffed around the clock to enforce this restriction. In September 2002, a contract was awarded to reroute SR 110 to increase the standoff distance between vehicles and the Pentagon. The project, called the Pentagon Secure Bypass,[5] was completed in 2004. SR110 was shifted eastward in a long arc to maintain a buffer distance from the Pentagon and a two-lane bridge to provide access to the Pentagon North parking lot and two pedestrian bridges were built over the new route. These and related security improvements cost $35million (equivalent to $56million in 2024[6]) and were completed in October 2004.[7][8]
In April 2019, the Arlington County Board voted to rename SR 110 to Richmond Highway. This went into effect in October 2019.[9]
Exit list
The entire route is in Arlington County. All exits are unnumbered.
_at_the_exit_for_Virginia_State_Route_110_NORTH_(Rosslyn,_To_Interstate_66_WEST)_in_Crystal_City,_Arlington_County,_Virginia.jpg){kind=link}
_at_Marshall_Drive_in_Arlington_County,_Virginia.jpg){kind=link}
_from_the_overpass_for_Virginia_State_Route_27_(Washington_Boulevard)_in_Arlington_County,_Virginia.jpg){kind=link}
