 State Route 420 | ||||
|---|---|---|---|---|
 | ||||
| Route information | ||||
| Maintained by VDOT | ||||
| Length | 2.75 mi[1] (4.43 km) | |||
| Existed | mid-1980s–present | |||
| Major junctions | ||||
| West end |  I-395 in Alexandria | |||
 SR 402 in Alexandria | ||||
| East end |  SR 7 in Alexandria | |||
| Location | ||||
| Country | United States | |||
| State | Virginia | |||
| Counties | City of Alexandria | |||
| Highway system | ||||
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State Route 420 (SR 420) is an unsigned primary state highway in the U.S. state of Virginia. The state highway is known as Seminary Road and Janneys Lane on its 2.75-mile (4.43 km) course from Interstate 395 (I-395) east to SR 7 within the independent city of Alexandria.