WASHINGTON - House and Senate conferees appear to be headed for a showdown when they meet to hammer out the $2 billion difference in their separate versions of legislation designating the highways to receive priority spending in the next six years.

On Friday the Senate approved, by voice vote, a "blueprint" for the National Highway System that would set priorities but would not authorize any actual spending for almost 160,000 miles of road connecting the country's main thoroughfares.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.