A major revamp and expansion of the Number 1 crude unit at Marathon Ashland Refinery in St. Paul Park, MN was performed. The top 20`of the vacuum tower was replaced. Fractionator work included 4 new packing beds and replacement of 4 trays. The T/A was completed on time with minimal approved cost overruns. This project was the recipient of a NACBE 2006 safety award.