PHILADELPHIA – MARCH 10: Dolores E. Hernandez uses a saw to cut a piece of expansion material to be placed in between concrete slabs of highway as a re-decking construction project continues on Interstate-95 northbound March 10, 2004 in Philadelphia, Pennsylvania. The $84 million dollar project to refurbish the decking on the highway started in Decmber 2002, and is slated to be finished in June 2005. (Photo by William Thomas Cain/Getty Images)