Pictures 7 Pittsburgh Steel Company Monessen Works, Monessen Pennsylvania Tweet Do you have an update on the current status of this structure? Please tell us about it in the comments below. 1995 VIEW OF SOUTH END OF TUNNEL UNDERNEATH PITTSBURGH & LAKE ERIE RIGHT OF WAY. THE SIGN READS ACCIDENTS JUST DON'T HAPPEN, THEY ARE CAUSED. 1995 VIEW NORTH AT NORTH END OF TUNNEL WITH LAB BUILDING TO THE RIGHT. OIL TANKS IN THE REAR. 1995 VIEW FACING EAST TOWARD KOPPERS COKE PLANT, MONONGAHELA RIVER TO LEFT, LOCOMOTIVE REPAIR SHOP CITY OF MONESSEN TO THE RIGHT. 1995 VIEW FACING SOUTHWEST, RUINS OF BRICK PUMP HOUSE. 1995 VIEW LOOKING NORTH, AMBULANCE PICKUP STATION NO. 6 BENEATH TRESTLE. 1995 GENERAL VIEW OF BRICK BUILDING NORTH OF OPEN HEARTH ALONG TRACKS. 1995 VIEW OF BASIC OXYGEN FURNACE BEING HOSED DOWN PRIOR TO DEMOLITION.