I have been to Lakewood quite a few times and know the area fairly well. There is an Eruv in Lakewood although I dont know the exact boundaries (Ive never cross route 9 ) Is there more than one communal eruv. and there are signs in certain places telling you that there is no eruv.
Also Route 9 in Lakewood is not exactly the same Rt 9 as further up like in Howell or Freehold where I wouldnt cross route 9 under any circumstance, however I would (and Have) crossed route 9 in lakewood. In Freehold and Howell Rt 9 is more like an expressway and in lakewood is more of a regular st