Going northbound or southbound on I-5, take the 164th Street/Mill Creek Exit (#183).  At the end of the exit ramp, turn east onto 164th Street.  Stay on 164th Street to the bottom of the hill and turn left at the traffic signal at Mill Creek Boulevard.  Continue on Mill Creek Boulevard until you pass the post office on your right, and Mill Creek Clinic on your left.  At the traffic light, turn left onto Main Street, just after the Mill Creek Clinic.  City Hall is the second driveway on your left.  Mill Creek Senior Center is the next (3rd) driveway.  The main office is at the top of the stairs/elevator on the second floor.