Pennsylvania State Police are not giving away where they'll be looking for impaired drivers, but say it'll be somewhere in Lehigh or Northampton counties.

State police in Bethlehem on Wednesday announced a sobriety checkpoint will be held somewhere in Lehigh's 349 square miles or Northampton's 377 square miles.

The checkpoint is planned from Friday to Sunday.

The only other information police offered about the operation is troopers will be systematically stopping vehicles at selected locations to briefly observe drivers for "articulable facts and/or behaviors normally associated with alcohol- or drug-impaired drivers."

"The goal of a sobriety checkpoint is to reduce the number of alcohol- and drug-related fatal and serious crashes, and to reduce the number of intoxicated drivers on Pennsylvania's highways, according to police.

Pamela Sroka-Holzmann may be reached at pholzmann@lehighvalleylive.com. Follow her on Twitter @pamholzmann. Find lehighvalleylive.com on Facebook.