Leave airport on 195. Follow 195 to 295 (South). Stay on 295 to Washington Beltway (I-95 / 495). Follow Beltway south to Maryland Route 4 (Pennsylvania Avenue). Take first exit for Route 4, towards Washington. Once on 4, keep to left. Turn left onto Silver Hill Road, and get in the right lane. Turn right at Gate 5, which is the Main Entrance to the Suitland Federal Complex, opposite Swann Lane on the left. You will be asked to pull into the visitor parking area at Gate 5.
Follow airport signs to Route 1, Jefferson Davis Highway. Proceed south to Washington Beltway (I-95 / 495). Take Beltway east across Woodrow Wilson Memorial Bridge into Maryland. Continue to Exit 7, Branch Avenue (MD Route 5), and take second off-ramp for Branch Avenue north. Turn right onto Silver Hill Road (turn is by Iverson Mall). Keep to left, turn left at Gate 5, which is also the Census entrance to the complex. You will be asked to pull into the visitor parking area at Gate 5.
