Sen. Barbara Boxer, D-Calif., chairman of the Senate panel, took issue with Peters' statement that the nation didn't have a broad transportation infrastructure crisis.
And though Boxer said she didn't support a gas tax hike, she told Peters, "If there's a way of fixing our infrastructure without money, I'd like to know what it is.”
Boxer and Sen. Bernard Sanders, a Vermont independent, criticized the Bush administration for spending hundreds of billions of dollars in Iraq but resisting higher spending on the U.S. infrastructure.
Inhofe, who was chairman of the committee two years ago when a $286 billion highway bill was approved by Congress, said Thursday that he still contends that bill didn't spend enough money.
But Inhofe also has opposed raising the federal gas tax, which provides federal funds for road and bridge construction and repair.