Virginia State Route 645 (Fairfax County)

State Route 645
Route information
Maintained by VDOT
Length	20.38 mi (32.80 km)
Existed	1948–present
Tourist routes	Virginia Byway
Major junctions
West end	Cul-de-sac on Wall Road in Oak Hill
Major intersections	US 50 near Chantilly SR 7700 near Fair Lakes I-66 near Fairfax/Centreville US 29 near Fairfax/Centreville/Clifton SR 123 near Fairfax Station SR 286 near Fairfax Station
East end	SR 620 in Springfield
Location
Country	United States
State	Virginia
Highway system
Virginia Routes Interstate US Primary Secondary Byways History HOT lanes

State Route 645 in Fairfax County, Virginia is a secondary state highway. There are six portions, three of them being major, named Wall Road, Lees Corner Road, Stringfellow Road, Clifton Road, Main Street (in the Town of Clifton) and Burke Lake Road. There are also numerous overlaps (mostly unposted): some include SR 657 / Centreville Road, U.S. Route 50, SR 652 (Burke Rd), SR 612 (Yates Ford Rd/Henderson Rd), and SR 641. A concurrency used to exist at US 29 near Centreville until the 1990s.