four lane divided highway, although the speed limit remains 40 MPH. It intersects with SR 643 (that road is called Burke Centre Parkway to the west, and Lee Chapel Rd. to the east). SR 645 leaves Fairfax Station and enters Burke. It intersects with SR 652 (Burke Rd.) (this is a split intersection because it is near the bridge over the Southern Railway tracks) where the speed limit decreases to 35 MPH. It passes by Lake Braddock Secondary School and then leaves Burke when it intersects with SR 638 (Rolling Road), and crosses into Springfield. SR 645 ends at SR 620 (Braddock Road) on the Springfield / Annandale border. Major intersections References 645 Fairfax State Route 645 State Route 645