| State Route 644 | |
|---|---|
| Major junctions | |
| West end: | SR 7100 at Burke |
|
SR 638 in Springfield |
|
| East end: | SR 611 near Alexandria |
| Highway system | |
State Route 644 is a secondary state highway in southern Fairfax County, Virginia. It is the closest main east–west road that is south of the Beltway. It is known primarily as Franconia Road east of I-95, and Old Keene Mill Rd west of I-95. Its intersection with I-95, which is right near the Springfield Mall, was part of the major eight-year Springfield Interchange rebuilding project that was completed in July 2007.