Heading south on Rt 100 past State Rd and before Manatawny, just as you enter Pottstown from Upper Pottsgrove Twp. Undercover police car on shoulder, hood up and 4-way flashers on will clock you as you pass over 2 white lines on the road. As you come up to Manatawny, the helper will pull off the shoulder of the road and cite you a violation. This is a wide open, 4-lane highway with center divide and clear site… great spot to trap you over the 55mph posted limit.