At the conclusion of his last regular legislative session in 2007, Barham told an interviewer that Louisiana should concentrate on anti-litter efforts and highway construction. He lamented that his state is one of the most littered in the nation and urged a public education and law enforcement angle to tackle the problem. He also said that the state should pave the first mile of each highway connecting to Arkansas, Mississippi, and Texas to the highest grade possible so as to give travelers coming into Louisiana a favorable first impression.