Speed limit drops to 35 mph as you cross the bridge entering Fairfax county. Fairfax county police wait on the north side of the bridge with radar usually hiding behind a sign. There is no residential zone only a ramp to I95 . They primarily target Prince William county residents because we have no recourse. Its approximately 3/4 a mile from the start of the bridge to the ramp its is a four lane highway and I can’t ever recall an accident. thanks again for everythingything to suggest the need for such doggedly enforcement.