Since Penn Dot added guard rail to this one lane bridge, oncoming traffic is not always yielding to the party on the brige, sometimes at considerable speeds. No accidents yet, but one waiting to happen. The signs were left in the same place, so it appears the confusion has been created by the double yellow lines, which are now within the lengths of guard rail. The road needs to be remarked and/or the signage moved to clearly indicate the bridge as one lane.
UPDATE 11/1/10: PennDot restriped the road on 10/31 and did not repaint the lines within the guard rail. However, the existing lines still show. They need to be blacked or etched out. It would be helpful if the "One Lane Bridge" signs were moved closer to the guard rails.