Just as you come off the paved section of 81 onto the concrete (3 lanes). The road gradually goes to the right and the State Police sit on the right against the sound barrier. Also just past the Drinker Street exit going north on 81, they sit behind the overpass pillar on the right by the Throop exit. They are usually in an unmarked car with a group of marked cars waiting a little further up by the 380/81 on ramp. Very Sneaky! Always watch the cars ahead of you for abnormal slowing!