They say a picture is worth a thousand etc. etc.
This particular picture is from the Wisconsin Department of Transportation's 2006 Budget Trends report. The top line represents spending on highway construction. The pink line, third from the top except near the end when it slips to fourth, represents spending on highway maintenance. The time period covered is 1992 through 2007.
So yeah, I'm guessing it could happen here.
For more on this, see Jim Rowen's post.