• The Advanced Transportation Research and Engineering Laboratory (ATREL) in Rantoul, Ill., is one facility that is looking at the use of oil from pig waste as a binder that can be used in asphalt for road paving.
• A demonstration project in St. Louis County, Mo., used pig poo in a 500-foot stretch of pavement.
• “That would be a very good use of an agricultural byproduct. It would be bio-friendly," Ann Schneider, Illinois transportation secretary, said.

From the article:

There might be a new definition of the term “road hog” in the future of America’s highways, state transportation officials and legislators learned this week in Rantoul. ...